20260727 11524000 1.0 ISO19115_3 002 SRAM_fara2026_drivedist_WGS84_minimal -7115409.503900 2258200.176900 269573.558600 6198634.671300 1 Projected GCS_WGS_1984 Linear Unit: Meter (1.000000) WGS_1984_Web_Mercator_Auxiliary_Sphere <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.4.0'><WKT>PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]</WKT><XOrigin>-20037700</XOrigin><YOrigin>-30241100</YOrigin><XYScale>10000</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102100</WKID><LatestWKID>3857</LatestWKID></ProjectedCoordinateSystem> 20260702 12124400 FALSE 20260702 12124400 These data were prepared by USDA REE-ERS to analyze various populations and their access to food at Supplemental Nutrition Assistance Program (SNAP) authorized retailers. This data set measures access as straight-line distance from stores. The area outlines are from US Census Bureau TIGER data. Limited access to supermarkets, supercenters, grocery stores, or other sources of healthy and affordable food may make it harder for some people to eat a healthy diet in this country. There are many ways to measure food store access for individuals and for neighborhoods, and many ways to define which areas are low-income and low access—neighborhoods that lack healthy food sources. Most measures and definitions consider at least some of the following indicators of access:<ul><li>Accessibility to sources of healthy food, as measured by distance to a store or by the number of stores in an area;</li><li>Individual-level resources that may affect accessibility, such as family income or vehicle availability; and</li><li>Neighborhood-level indicators of resources, such as the average income of the neighborhood and the availability of public transportation.</li></ul>In the Food Access Research Atlas, several indicators are available to measure food access along these dimensions. For example, users can choose alternative distance markers to measure low access in a neighborhood, such as the number and share of people more than one-half mile to a supermarket or 1 mile to a supermarket. Users can also view other census-tract-level characteristics that provide context on food access in neighborhoods, such as whether the tract has a high percentage of households far from supermarkets and without vehicles, individuals with low income, or people residing in group quarters. Food Access Research Atlas - SNAP Retailer - 2026 Data 2026-07-01T00:00:00 map Food Access Research Atlas -180.000000 180.000000 90.000000 3.020343 1 Food Access SNAP These data are the source for thematic map layers in the Food Access Research Atlas presented by USDA REE-ERS regarding access to SNAP authorized retailers. USDA REE-ERS USDA FNS Store Tracking and Redemption System (STARS) Oak Ridge National Labs - landscan US Census Bureau no constraints Esri ArcGIS 13.4.0.55405 dataset 20260702 USDA REE-ERS File Geodatabase Feature Class 10 Esri 8.1.2 SRAM_FARA26_driving_distance_DET US Census Cartographic style census tracts with USDA created attribute data Feature Class 0 OBJECTID OBJECTID OID 4 0 0 Internal feature number. Esri Sequential unique whole numbers that are automatically generated. Shape Shape Geometry 0 0 0 Feature geometry. Esri Coordinates defining the features. CensusTract20 Census Tract 2020 String 255 0 0 2020-11 Character census GEOID code. US Census Bureau CensusTract24 Census Tract 2024 String 255 0 0 2024-11 Character census GEOID code. State State Name String 255 0 0 Name by which state containing the tract is known US Census Bureau County20 County Name 2020 String 255 0 0 Name by which county or equivalent area is known in 2020. US Census Bureau County24 County Name 2024 String 255 0 0 Name by which county or its equivalent area is known in 2024 US Census Bureau Urban Urban tract Double 8 0 0 Binary flag indicating if census tract is recognized by US Census Bureau as included in a 2020 Urban Area Boundary. 1 indicates Urban, 0 is not Urban. US Census Bureau POP2020 2020 Population Double 8 0 0 Population, tract total US Census Bureau OHU2020 Housing units, total Double 8 0 0 Occupied housing unit count from 2020 census GroupQuartersFlag Group quarters, tract with high share Double 8 0 0 Flag for tract where >=67% NUMGQTRS Group quarters, tract population residing in, number Double 8 0 0 Count of tract population residing in group quarters PCTGQTRS Group quarters, tract population residing in, share Double 8 0 0 Percent of tract population residing in group quarters DD_SRAM_LILATracts_1And10 Straight-line Distance, SNAP-authorized Retailer Access Map, Low income and low access tract measured at 1 mile for urban areas and 10 miles for rural areas Double 8 0 0 Flag for low-income and low access when considering low accessibilty at 1 and 10 miles, calculated using Euclidean-based (straight-line) distance DD_SRAM_LILATracts_halfAnd10 Straight-line Distance, SNAP-authorized Retailer Access Map, Low income and low access tract measured at 1/2 mile for urban areas and 10 miles for rural areas Double 8 0 0 Flag for low-income and low access when considering low accessibility at 1/2 and 10 miles, calculated using Euclidean-based (straight-line) distance DD_SRAM_LILATracts_1And20 Low income and low access tract measured at 1 mile for urban areas and 20 miles for rural areas Double 8 0 0 DD_SRAM_LILATracts_Vehicle Straight-line Distance, SNAP-authorized Retailer Access Map, Low income and low access tract using vehicle access or low income and low access tract measured at 20 miles Double 8 0 0 Flag for low-income and low access when considering vehicle access or at 20 miles, calculated using Euclidean-based (straight-line) distance DD_SRAM_HUNVFlag Straight-line Distance, SNAP-authorized Retailer Access Map, Vehicle access, tract with low vehicle access Double 8 0 0 Flag for tract where >= 100 of households do not have a vehicle, and beyond 1/2 mile from SNAP-authorized foodstore, calculated using Euclidean-based (straight-line) distance LowIncomeTracts Low income tract Double 8 0 0 Flag for low income tract PovertyRate Tract poverty rate Double 8 0 0 Share of the tract population living with income at or below the Federal poverty thresholds for family size MedianFamilyIncome Tract median family income Double 8 0 0 Tract median family income DD_SRAM_LA1and10 Straight-line Distance, SNAP-authorized Retailer Access Map, Low access tract at 1 mile for urban areas and 10 miles for rural areas Double 8 0 0 Flag for low access tract at 1 mile for urban areas or 10 miles for rural areas, calculated using Euclidean-based (straight-line) distance DD_SRAM_LAhalfand10 Straight-line Distance, SNAP-authorized Retailer Access Map, Low access tract at 1/2 mile for urban areas and 10 miles for rural areas Double 8 0 0 Flag for low access tract at 1/2 mile for urban areas or 10 miles for rural areas, calculated using Euclidean-based (straight-line) distance DD_SRAM_LA1and20 Straight-line Distance, SNAP-authorized Retailer Access Map, Low access tract at 1 mile for urban areas and 20 miles for rural areas Double 8 0 0 Flag for low access tract at 1 mile for urban areas or 20 miles for rural areas, calculated using Euclidean-based (straight-line) distance DD_SRAM_LATracts_half Straight-line Distance, SNAP-authorized Retailer Access Map, Low access tract at 1/2 mile Double 8 0 0 Flag for low access tract when considering 1/2 mile distance, calculated using Euclidean-based (straight-line) distance DD_SRAM_LATracts1 Straight-line Distance, SNAP-authorized Retailer Access Map, Low access tract at 1 mile Double 8 0 0 Flag for low access tract when considering 1 mile distance, calculated using Euclidean-based (straight-line) distance DD_SRAM_LATracts10 Straight-line Distance, SNAP-authorized Retailer Access Map, Low access tract at 10 miles Double 8 0 0 Flag for low access tract when considering 10 mile distance, calculated using Euclidean-based (straight-line) distance DD_SRAM_LATracts20 Straight-line Distance, SNAP-authorized Retailer Access Map, Low access tract at 20 miles Double 8 0 0 Flag for low access tract when considering 20 mile distance, calculated using Euclidean-based (straight-line) distance DD_SRAM_LATractsVehicle_20 Straight-line Distance, SNAP-authorized Retailer Access Map, Low access tract using vehicle access and at 20 miles in rural areas Double 8 0 0 Flag for tract where >= 100 of households do not have a vehicle, and beyond 1/2 mile from SNAP-authorized foodstore; or >= 500 individuals are beyond 20 miles from SNAP-authorized foodstore ; or >= 33% of individuals are beyond 20 miles from SNAP-authorized foodstore, calculated using Euclidean-based (straight-line) distance TractSNAP Tract housing units receiving SNAP benefits, number Double 8 0 0 Total count of housing units receiving SNAP benefits in tract TractVeteran Tract Veteran population, number Double 8 0 0 Total count of Veteran population in tract TractTribalArea Tract Tribal area, share Double 8 0 0 Share of the tract that is American Indian tribal subdivision area (administrative subdivisions of federally recognized American Indian reservations/off-reservation trust lands or Oklahoma tribal statistical areas (OTSAs) Shape_Length Shape_Length Double 8 0 0 Length of feature in internal units. Esri Positive real numbers that are automatically generated. Shape_Area Shape_Area Double 8 0 0 Area of feature in internal units squared. Esri Positive real numbers that are automatically generated. 0 Simple FALSE 0 TRUE FALSE