Chapter 17: Food Systems Mapping

Chapter Overview

This chapter examines food systems mapping — the practice of documenting where food is grown, distributed, sold, and accessed, and who controls these systems. It distinguishes food security (having enough to eat) from food sovereignty (community control over food systems), and explores the spatial dimensions of grocery access, emergency food infrastructure, local production, cultural food availability, and the structural patterns known as food deserts and food swamps. Food systems mapping is essential for understanding who eats well, who struggles, and where community-led interventions can build local resilience.

Learning Outcomes

By the end of this chapter, you will be able to:

Define food security and food sovereignty, and explain why both concepts matter in mapping
Identify spatial indicators of food access, including distance to grocery stores, transit connections, and food retail density
Recognize the differences between food deserts, food swamps, and culturally inaccessible food environments
Apply asset-based approaches to mapping local food production, distribution networks, and community food initiatives
Evaluate ethical considerations in food systems mapping, including privacy, stigma, and community data sovereignty
Articulate the role of food systems mapping in building local resilience and equity

Key Terms

Food Security: Reliable access to sufficient, safe, and nutritious food to meet dietary needs and preferences.
Food Sovereignty: The right of communities to define, control, and shape their own food systems, including production, distribution, and cultural practices (La Via Campesina, 1996).
Food Desert: An area with limited access to affordable, healthy food, often defined by distance to grocery stores and lack of transportation options.
Food Swamp: An area with an overabundance of fast food outlets, convenience stores, and ultra-processed food options relative to healthy food sources.

17.1 Food Security and Food Sovereignty

Food security and food sovereignty are not synonyms. They represent related but distinct frameworks for understanding food systems — and both matter for mapping.

Food security is the condition of having reliable access to sufficient, safe, and nutritious food. The United Nations Food and Agriculture Organization defines it across four dimensions: availability (is food physically present?), access (can people afford and reach it?), utilization (is it safe and culturally appropriate?), and stability (is access consistent over time?). Food security is typically measured through household surveys, income data, grocery store proximity, and emergency food use.

Food security mapping asks: Where are people going hungry? Where is food access weak? How far must people travel to reach nutritious food? It is a needs-based framework — essential for understanding gaps and vulnerabilities.

Food sovereignty, by contrast, is a framework rooted in social movements, particularly the global peasant and Indigenous food movements. Coined by La Via Campesina in 1996, food sovereignty asserts that communities have the right to define, control, and shape their own food systems. It is not just about having food — it is about who decides what food is grown, how it is grown, who profits from it, and how it is distributed.

Food sovereignty mapping asks different questions: Who owns farmland? Who controls distribution networks? Where are community gardens, Indigenous food harvesting sites, farmers' markets, and locally owned food infrastructure? What food traditions are being maintained or lost? Where are food systems extractive, and where are they regenerative?

Indigenous food sovereignty — advanced by groups such as the Working Group on Indigenous Food Sovereignty in British Columbia — adds layers of cultural reconnection, land-based knowledge, treaty rights, and decolonization to the food sovereignty framework. For many Indigenous communities, food sovereignty is inseparable from territorial sovereignty and the restoration of traditional food practices disrupted by colonization.

Both frameworks are necessary for comprehensive food systems mapping. Security mapping without sovereignty can lead to solutions that feed people but leave control in the hands of corporations, distant governments, or external agencies. Sovereignty mapping without security can idealize local food systems while ignoring the reality that people are struggling to eat.

Effective food systems mapping holds both — documenting current food access gaps (security) while also mapping community-controlled food infrastructure and potential for local resilience (sovereignty).

17.2 Grocery Access

Grocery access is the most commonly mapped dimension of food systems. It is relatively straightforward to measure: Where are grocery stores? Who lives near them? Who doesn't?

Proximity mapping measures the distance between where people live and the nearest full-service grocery store. Common thresholds include 1 kilometer in urban areas and 5-10 kilometers in rural areas, though these are arbitrary and should be adapted to local context. A resident without a car in a sprawling suburb may find even 2 kilometers insurmountable. A rural resident accustomed to driving may consider 20 kilometers acceptable.

Transit-adjusted access mapping is more accurate than straight-line distance. It accounts for whether a grocery store is reachable by public transit, how long the trip takes, and whether transit schedules align with shopping needs (for example, evening or weekend service). A store 2 kilometers away but requiring two bus transfers and 90 minutes of travel is not meaningfully accessible.

Economic access mapping overlays income data with grocery prices. A neighborhood may have a grocery store, but if prices are high relative to local incomes, the store is not accessible to everyone. Some mappers calculate the "food affordability gap" — the difference between what healthy food costs and what households can afford to spend.

Inventory and quality mapping goes deeper than just location. Not all grocery stores stock the same range of products. Some carry fresh produce, whole grains, and lean proteins. Others stock primarily packaged, processed, and ultra-processed foods. Community-led food access assessments often include store audits: What is on the shelves? Is produce fresh? Are prices reasonable? Community members are often better judges of quality and cultural appropriateness than external data alone.

Grocery access mapping must also account for who shops where. A neighborhood may technically have a grocery store, but if residents perceive it as unsafe, unwelcoming, or lacking in culturally relevant foods, they may travel elsewhere — or rely on less healthy alternatives.

Finally, grocery access mapping should not stop at identifying gaps. It should also map alternative food infrastructure: corner stores that stock fresh produce, mobile food markets, food cooperatives, farmers' markets, community-supported agriculture (CSA) drop-off points, and informal food-sharing networks. The goal is not just to document the absence of supermarkets, but to understand the full landscape of where people actually source food.

17.3 Food Banks and Emergency Food

Food banks, soup kitchens, community meal programs, and emergency food hampers are critical safety nets — but they are also indicators of systemic failure. A neighborhood heavily reliant on emergency food is a neighborhood where wages, social assistance, housing costs, and food prices are out of balance.

Mapping emergency food infrastructure requires careful framing. Food banks should not be mapped as "assets" without also naming the need that drives their existence. They are responses to food insecurity, not solutions to it.

Location mapping documents where food banks and meal programs operate. Are they reachable by those who need them? Are they concentrated in certain neighborhoods? Are there areas of high need with no emergency food nearby?

Utilization mapping tracks who uses emergency food, how often, and for how long. Rising food bank use over time signals worsening economic conditions. Seasonal spikes (such as higher demand in winter when heating costs rise) reveal household budget pressures. Demographic data on food bank users can highlight which populations are most at risk: seniors on fixed incomes, single-parent families, newcomers, people with disabilities, or households in precarious employment.

Access barrier mapping identifies obstacles to reaching emergency food. Are food banks open during hours when people can get there? Do they require ID, proof of address, or referrals? Are they accessible by transit or on foot? Are they culturally welcoming? Language barriers, stigma, and eligibility restrictions all limit access — and should be documented.

Capacity and gap mapping compares emergency food supply to demand. Are food banks running out of food? Are they turning people away? Are there waiting lists? Are there neighborhoods where need is high but no emergency food infrastructure exists?

Food banks themselves are often excellent mapping partners. They have real-time data on demand, demographics, and emerging needs. Many food banks already map their service areas, referral sources, and gaps. Collaboration with food banks can strengthen mapping accuracy and ensure findings support their advocacy for systemic change — not just charity.

Ethical considerations are paramount in emergency food mapping. Naming specific food banks can increase stigma or surveillance of users. Aggregating data (for example, reporting at the neighborhood level rather than by facility) protects privacy. Food bank data should be shared only with informed consent and community control.

17.4 Local Farms and Producers

Mapping local food production is central to food sovereignty. It documents where food is grown, who grows it, and what is grown — and it reveals how much of a community's food supply is local versus imported.

Farm location and scale mapping shows where farms are, how large they are, and what types of operations they represent: small-scale family farms, mid-size diversified operations, large-scale monoculture, or corporate-owned industrial farms. In Canada, small farms have been disappearing at an alarming rate. Between 1991 and 2016, the number of farms in Canada declined by over 25%, with the steepest losses among small and mid-sized operations. Mapping this decline — and documenting which farms remain — is an act of memory and resistance.

Crop and livestock diversity mapping tracks what is being produced locally. Is production diverse (fruits, vegetables, grains, dairy, meat) or concentrated in a few commodity crops? Diversity supports resilience; monoculture creates risk. Indigenous communities mapping traditional food sources often document not just farms but also hunting, fishing, foraging, and gathering sites — all of which are food production, even when they fall outside Western agricultural categories.

Direct-to-consumer mapping identifies where local food is sold directly: farm stands, farmers' markets, CSA programs, on-farm stores, and farm-to-institution programs (such as schools or hospitals sourcing from local farms). Direct-to-consumer channels keep more money in the local economy, reduce environmental impact, and strengthen relationships between eaters and growers.

Producer demographics and succession mapping reveals who farms. Are farmers aging? Are young people entering farming? Are new farmers able to access land? Are immigrant farmers, Indigenous farmers, Black farmers, and other historically marginalized producers supported or excluded? Succession is a critical issue: many farmers are nearing retirement with no one to take over. Mapping succession risks can inform land trusts, training programs, and policy interventions to keep farmland in production and in community hands.

Land tenure and ownership mapping documents who owns farmland. Is land owned by the people who farm it, or by investors, corporations, or absentee landlords? Are land prices rising in ways that push farmers out? Are Indigenous communities reclaiming food-producing territories? Land ownership shapes food sovereignty more than any other factor.

Mapping local food production is not just a rural activity. Urban farms, rooftop gardens, hydroponic operations, community orchards, and backyard food production all contribute to local food supply. In cities, mapping these sites can challenge the false binary between "rural food producers" and "urban food consumers" — and reveal the potential for local food systems even in dense urban areas.

17.5 Community Gardens

Community gardens are sites of food production, social connection, cultural expression, education, and political action. They are among the most visible and accessible forms of community-controlled food infrastructure.

Mapping community gardens involves more than marking locations. It requires understanding who gardens, why they garden, what they grow, and how the garden is governed.

Location and access mapping shows where community gardens are and who can reach them. Are gardens distributed equitably, or are they concentrated in affluent or politically organized neighborhoods? Are gardens accessible by transit or on foot? Are they physically accessible to people with mobility limitations?

Plot allocation and governance mapping documents how garden space is allocated. Is there a waiting list? Who gets priority? How are decisions made? Gardens governed by municipalities, nonprofits, or community associations may have different allocation rules, fee structures, and tenure security. Mapping governance helps identify where gardens are stable and where they are at risk of displacement.

Cultural and demographic mapping reveals who uses community gardens and for what purposes. Some gardens are primarily food production sites. Others are social spaces, cultural heritage sites, or environmental education hubs. Immigrant and refugee gardeners often grow culturally significant crops not available in local grocery stores — making community gardens essential food sovereignty infrastructure. Mapping crop diversity and cultural practices within gardens can document this role.

Waiting list and demand mapping identifies unmet need. If a garden has a multi-year waiting list, that signals high demand and insufficient supply. Mapping demand can support advocacy for more garden space, more water access, or policy changes to protect and expand urban agriculture.

Risk and displacement mapping documents threats to community gardens. Are gardens on municipally owned land secure, or could they be displaced by development? Are gardens on informal or "guerrilla" sites at risk of eviction? Mapping tenure status helps prioritize advocacy and protection efforts.

Community gardens are not always equitable or inclusive. Some gardens replicate race and class exclusions found in the broader food system. Mapping who participates — and who doesn't — can reveal these patterns and support efforts to make gardens more welcoming and accessible.

17.6 Food Distribution Networks

Food systems are not just about production and retail. They are also about the infrastructure that moves food from producers to eaters: wholesalers, distribution hubs, transportation routes, cold storage, and logistics networks.

Most of this infrastructure is privately owned and invisible to the public. But it shapes who eats what, how fresh food is, and how resilient local food systems are.

Supply chain mapping traces where food comes from and how it moves. In globalized food systems, a single grocery store shelf may contain products from dozens of countries, moved through complex supply chains. Local food systems, by contrast, rely on shorter supply chains — often producer to consumer, with few or no intermediaries.

Community food system mapping often focuses on local and regional distribution networks: food hubs (facilities that aggregate, store, and distribute local food), cooperative distribution networks, mobile markets that bring food to underserved areas, and informal food-sharing networks. These networks are often small-scale, community-controlled, and operating on tight margins — but they are critical infrastructure for food sovereignty.

Cold chain mapping documents refrigerated storage and transport capacity. Fresh produce, dairy, and meat require cold chain infrastructure to remain safe. Communities without cold storage or refrigerated transport are at a disadvantage in accessing fresh, perishable food. Mapping cold chain capacity can reveal gaps and inform investment in shared infrastructure (for example, community-owned cold storage that supports multiple small producers).

Transportation and fuel cost mapping highlights how distance and fuel prices shape food access. Rural and remote communities often pay significantly more for food because of transportation costs. Mapping these cost structures can support advocacy for transportation subsidies, local food production incentives, or regional food hubs that reduce shipping distances.

Institutional purchasing mapping tracks where large institutions — schools, hospitals, universities, prisons, senior care facilities — source their food. Are they buying from local farms, or from distant corporate suppliers? Institutional purchasing represents a major share of the food economy. Mapping institutional supply chains can identify opportunities to shift purchasing toward local, sustainable, and equitable sources.

Distribution mapping is challenging because much of this infrastructure is proprietary. Companies do not typically share logistics data. But community-led mapping can document what is observable: where trucks deliver, where food hubs operate, where farmers sell wholesale, and where distribution gaps exist.

17.7 School Food Programs

Schools are a critical site for food systems mapping. School meal programs, breakfast clubs, snack programs, and school gardens shape children's nutrition, learning, and relationship to food.

Program coverage mapping shows which schools have meal programs and which do not. Are programs concentrated in low-income neighborhoods, or are they universal? Are programs funded by government, nonprofits, or parent fundraising? Mapping coverage reveals equity gaps and can support advocacy for universal school meal programs.

Food sourcing mapping examines where school food comes from. Are schools sourcing from local farms, or from industrial suppliers? Are meals cooked on-site, or pre-packaged and reheated? Local food procurement in schools (often called "farm-to-school" programs) supports local economies, reduces environmental impact, and improves meal quality.

Nutrition and quality mapping assesses what students are eating. Community-led school food assessments often involve students themselves documenting what is served, whether they eat it, and what they wish were available. This participatory approach centers student voice and reveals gaps that administrative data alone might miss.

Cultural appropriateness mapping evaluates whether school food reflects the cultural backgrounds of students. Are halal, kosher, vegetarian, vegan, or allergen-free options available? Are traditional foods from students' cultures represented? Schools serving diverse populations must offer culturally inclusive menus — and mapping can document where this is happening and where it is not.

Food literacy and education mapping tracks whether schools are teaching students about food systems, nutrition, cooking skills, and food justice. School gardens, cooking classes, and food-focused curricula are assets that build long-term food sovereignty.

School food mapping often reveals stark inequities: schools in affluent areas may have robust gardens, cooking facilities, and parent volunteers, while schools in lower-income areas rely on pre-packaged meals and have no garden space. Mapping these disparities can support resource reallocation and policy change.

17.8 Cultural Food Access

Not all food is the same. A neighborhood may have a grocery store, but if that store does not stock foods that are culturally significant to residents, access is incomplete.

Cultural food retail mapping documents where culturally specific foods are available: halal butchers, kosher markets, Caribbean groceries, Asian supermarkets, Middle Eastern bakeries, Indigenous food suppliers, and specialty stores serving specific diasporic communities. These retailers are often small, independent, and essential to food sovereignty for immigrant, refugee, and diasporic populations.

Mapping cultural food access requires community knowledge. Residents are the experts on which stores carry which foods, which stores are trusted, and which neighborhoods lack culturally appropriate options. External mappers working without community input will miss these nuances.

Traditional and Indigenous food mapping is a specialized domain. Indigenous communities across North America have been mapping traditional food harvesting sites, fishing areas, hunting territories, and gathering places as part of land-based education, cultural revitalization, and territorial assertion. This mapping is often governed by community protocols: some knowledge is shared publicly, some is shared only within the community, and some is protected and never mapped externally. Non-Indigenous mappers should never map Indigenous food sites without explicit invitation and consent.

Language access mapping identifies barriers to food access created by language. Are grocery stores staffed by people who speak the languages of the neighborhood? Are product labels, sale flyers, and nutrition information available in multiple languages? Language barriers can make nominally "accessible" food environments functionally inaccessible.

Affordability of cultural foods mapping documents price disparities. Specialty cultural foods are often more expensive than mainstream equivalents, particularly in neighborhoods where they must be imported or sourced from distant suppliers. Mapping these price differences can support advocacy for local cultural food production, cooperative purchasing, or subsidies.

Cultural food access mapping is an equity issue. When food policy and planning define "access" narrowly — as proximity to a generic "grocery store" — they erase the real needs of diverse communities. Mapping cultural food access centers those needs and challenges assimilationist framings of food security.

17.9 Food Deserts and Food Swamps

The terms "food desert" and "food swamp" entered popular use in the early 2000s, largely through the work of researcher Mari Gallagher in Chicago. Both describe unhealthy food environments — but they are not the same.

A food desert is an area with limited access to affordable, nutritious food. It is typically defined by distance to full-service grocery stores, low income, and lack of personal transportation. The term has been critiqued for implying that these areas are empty, barren, or naturally occurring — when in fact they are the result of disinvestment, policy choices, and structural racism. Some advocates prefer the term "food apartheid" to emphasize systemic exclusion rather than geographic accident.

A food swamp is an area where unhealthy food options (fast food outlets, convenience stores, dollar stores, gas stations selling packaged snacks) vastly outnumber healthy options. In a food swamp, grocery stores may exist, but they are overwhelmed by the density of fast food and ultra-processed food sources. Research suggests that food swamps may be a stronger predictor of poor diet and health outcomes than food deserts.

Mapping food deserts typically involves:

Identifying census areas with low income and low vehicle ownership
Measuring distance to the nearest supermarket (often using 1 km in urban areas, 10 km in rural areas)
Overlaying these two layers to identify "desert" zones

Mapping food swamps involves:

Counting all food retail locations: grocery stores, convenience stores, fast food outlets, dollar stores
Calculating the ratio of healthy to unhealthy options
Identifying areas where unhealthy options dominate

Both mappings are useful, but both have limitations. They rely on administrative definitions of "healthy" (for example, any supermarket is assumed to be healthy, any fast food is assumed to be unhealthy). They do not account for store quality, cultural appropriateness, or whether people actually shop where the map assumes they do. They can stigmatize neighborhoods by labeling them "deserts" or "swamps" without centering resident voice or agency.

Effective food desert and food swamp mapping should be paired with community-led food environment assessments that document resident experiences, preferences, and priorities. What do residents consider healthy food? Where do they actually shop? What barriers do they face? What solutions do they propose?

Both food deserts and food swamps are symptoms of structural forces: disinvestment in low-income and racialized neighborhoods, car-dependent suburban sprawl, zoning that permits fast food clustering, corporate consolidation in grocery retail, and the political power of the processed food industry. Mapping alone does not address these forces — but it can make them visible and support advocacy for systemic change.

17.10 Mapping Toward Local Resilience

Food systems mapping is not an end in itself. The goal is to build food systems that are equitable, sustainable, resilient, and community-controlled.

Resilience mapping identifies vulnerabilities and capacities in local food systems. How dependent is the community on food imported from distant regions? What would happen if supply chains were disrupted (by pandemic, climate disaster, economic crisis, or conflict)? Where are local production, storage, and distribution capacities strong? Where are they weak?

Resilience mapping often involves scenario planning: What if the nearest grocery store closed? What if trucking routes were interrupted? What if a heat wave destroyed local crops? Mapping allows communities to visualize these scenarios and plan responses.

Food system transformation mapping documents not just what exists, but what is emerging. Where are new community gardens being started? Where are food cooperatives forming? Where are municipalities changing zoning to allow urban agriculture? Where are Indigenous communities reclaiming food sovereignty? Mapping these emergent initiatives can build momentum, connect changemakers, and attract support.

Policy and regulatory mapping identifies where policy supports or constrains local food systems. Where does zoning permit urban agriculture? Where do business licenses make it hard to run small food enterprises? Where do health regulations prohibit informal food sharing? Where do procurement policies favor local food? Mapping the policy landscape helps advocates target specific regulatory changes.

Funding and investment mapping tracks where resources are flowing. Which neighborhoods receive grants for community food projects? Which producers have access to credit or land? Mapping investment patterns can reveal geographic and demographic disparities and support more equitable resource allocation.

The ultimate goal of food systems mapping is not to produce perfect maps — it is to support communities in taking action. Mapping is a tool. The transformation happens in the gardens, the markets, the policy meetings, the land reclamations, and the dinner tables where communities decide what they want their food systems to be.

17.11 Synthesis and Implications

Food systems mapping sits at the intersection of health, equity, environment, economy, and sovereignty. It asks: Who eats? Who goes hungry? Who controls food? Who profits? Who is excluded?

The synthesis from this chapter:

Food security and food sovereignty are both necessary frameworks. Mapping access gaps without mapping community control misses half the picture. Mapping sovereignty without addressing immediate hunger ignores real suffering.
Grocery store proximity is not enough. Transit access, affordability, cultural appropriateness, and quality matter as much as distance. A map showing only store locations is incomplete.
Emergency food infrastructure is a symptom, not a solution. Food banks should be mapped as crisis responses, not as assets, and their rising use should be interpreted as a sign of systemic failure.
Local food production is disappearing. Mapping remaining farms, gardens, and producers is an act of documentation and resistance. Protecting and expanding local food infrastructure is essential for resilience.
Food deserts and food swamps are structural, not natural. They are the result of policy, investment, and power. Mapping them must lead to structural solutions, not just charity or individual behavior change.
Cultural food access is a justice issue. Food systems that do not serve diverse communities are food systems that exclude. Mapping must center cultural appropriateness and community definitions of "good food."
Ethical mapping practices are non-negotiable. Food insecurity carries stigma. Emergency food users deserve privacy. Indigenous food knowledge is protected. Community data sovereignty must be respected.

Food systems mapping is not neutral. It reveals power, names exclusion, and documents resilience. Done well, it supports communities in building food systems where everyone eats, where control is local, and where food is a right, not a privilege.

17.12 Food Access Mapping Lab

Purpose: This lab exercise teaches students to map food access in a defined area, combining spatial data with community observation and critical analysis. The goal is to move beyond simple grocery store proximity mapping to a more nuanced understanding of food environments.

Materials Needed:

Printed or digital base map of the study area
Census or demographic data (income, vehicle ownership, household composition)
List of food retail locations (grocery stores, convenience stores, fast food outlets, farmers' markets, community gardens, food banks)
Transit route maps and schedules
Walking shoes and a camera or phone for documentation

Steps:

Define your study area. Choose a neighborhood, census tract, or small community. Clearly mark its boundaries on your base map.
Collect location data. Identify and map all food sources in the area:
- Full-service grocery stores
- Convenience stores and corner stores
- Fast food outlets
- Farmers' markets or farm stands
- Food banks or meal programs
- Community gardens
- Other relevant food sources (food co-ops, mobile markets, CSA drop sites)
Measure proximity. For each residential area, calculate distance to the nearest grocery store. Use walking distance, not straight-line distance. Note areas that are more than 1 km from a full-service grocery store.
Assess transit access. Map public transit routes and stops. Identify how long it would take to reach the nearest grocery store by transit from different parts of the study area. Note evening and weekend service availability.
Calculate food swamp ratio. Count the number of fast food outlets and convenience stores versus full-service grocery stores. Calculate the ratio. A ratio higher than 4:1 (four unhealthy options for every healthy option) is considered a food swamp.
Conduct a walking audit. Walk through at least one part of the study area. Document:
- Are sidewalks safe and accessible?
- Are there barriers (busy roads, lack of crosswalks, poor lighting)?
- What food options are visible?
- What do you observe about who is shopping where?
Overlay demographic data. Add income, vehicle ownership, and household composition data to your map. Look for patterns: Are low-income areas also areas with poor food access? Are areas with high rates of households without vehicles also food deserts?
Analyze and interpret. Write a 500-word analysis answering:
- What are the strengths of the food environment in this area?
- What are the gaps?
- Who is most at risk of food insecurity, and why?
- What structural factors (policy, investment, transportation) contribute to the patterns you observed?
- What community-led solutions exist or could exist?

Deliverable: A map showing food sources, proximity zones, transit access, and demographic overlays, plus a 500-word written analysis.

Time Estimate: 4-6 hours (data collection, field work, mapping, and analysis)

Safety and Ethics Notes:

Do not enter private property without permission.
If conducting a walking audit, go with a partner and stay in public spaces.
Do not photograph or identify individuals using food banks or emergency food services.
If residents ask what you're doing, explain clearly and offer to share findings.
Acknowledge limitations: your map reflects a snapshot in time, not lived experience. Community members are the experts on their own food environments.

Key Takeaways

Food security (having enough to eat) and food sovereignty (community control over food systems) are distinct but complementary frameworks for mapping.
Effective food access mapping goes beyond grocery store proximity to include transit, affordability, cultural appropriateness, and quality.
Food deserts (limited access to healthy food) and food swamps (overabundance of unhealthy food) are both structural problems requiring systemic solutions.
Emergency food infrastructure should be mapped as a crisis response, not an asset, and rising food bank use signals worsening economic conditions.
Mapping local farms, community gardens, and direct-to-consumer food channels documents community-controlled food infrastructure and resilience capacity.
Cultural food access is an equity issue; food systems mapping must center diverse community needs and definitions of "good food."

Plain-Language Summary

Food systems mapping is about understanding where food comes from, who has access to it, and who controls the system. It's not just about counting grocery stores — it's about looking at whether people can actually reach those stores, afford the food, and find the culturally appropriate foods they need.

This chapter explained the difference between food security (having enough to eat) and food sovereignty (communities controlling their own food systems). Both matter. Mapping also looks at emergency food like food banks (which help people but also show where the system is failing), local farms and gardens (which give communities more control), and patterns like food deserts (areas with no grocery stores) and food swamps (areas with too much fast food).

Good food systems mapping is done with communities, not to them. It respects people's privacy, centers their knowledge, and supports them in building food systems that work for everyone — not just those with money and cars.

End of Chapter 17.

Chapter 17. Food Systems Mapping