USDA Food Environmental Atlas

The recently updated USDA Food Atlas is designed to provide a spatial overview of a community’s ability to access healthy food and currently assembles 168 indicators of the food environment, up from the original 90 indicators of food access. The measures include factors such as availability of food stores and restaurants, food prices, socioeconomic characteristics, and health outcomes. 

http://maps.ers.usda.gov/FoodAtlas/