This US EPA feature layer is updated hourly and reflects the latest hour of air quality data received from each monitoring site that reports to AirNow. The concentration and AQI values are for Ozone and Particulate Matter (PM) only. Air quality index ranges from 0-5,000 with higher values indicating worse air quality.
Rural-Urban Commuting Zones
The USDA, Economic Research Service’s (ERS) Rural-Urban Commuting Area (RUCA) codes are a classification scheme allowing for flexible, census tract delineation of rural and urban areas throughout the United States and its territories. RUCA codes were designed to address a major limitation associated with county-based classifications; they are often too large to accurately delineate boundaries between rural and urban areas. The more geographically-detailed information provided by RUCA codes can be used to improve rural research and policy—such as addressing concerns that remote, rural communities in large metropolitan counties are not eligible for some rural assistance programs.
The RUCA codes consist of two levels. The primary RUCA codes establish urban cores and the census tracts that are the most economically integrated with those cores through commuting. The secondary RUCA codes indicate whether a census tract has a strong secondary connection (through commuting) to an even larger urban core. For more information, visit the “RUCA website” here.
Health Insurance Marketplace Enrollment, 2025
Area Deprivation Index by Census Block Group
The 2023 Area Deprivation Index is now available! The ADI map displays rankings of neighborhoods by socioeconomic status disadvantage in a region of interest (e.g. at the state or national level). It includes factors for the theoretical domains of income, education, employment, and housing quality. It can be used to inform health delivery and policy, especially for the most disadvantaged neighborhood groups. The 2023 ADI was constructed using the 2019-2023 5-year estimates from the US Census’ American Community Survey.
On-Farm Markets
Layer displays the location of on-farm markets across the US. Data was obtained from the USDA Local Food Directories on July 12, 2025.
Community Supported Agriculture (CSA) Sites
Layer displays the location of Community Supported Agriculture (CSA) Sites across the US. Data was obtained from the USDA Local Food Directories on July 12, 2025.
Farmers’ Markets Accepting WIC / WIC Cash
This layer displays the locations of farmer’s markets across the United States that accept WIC benefits. Data is current as of July 12, 2025.
Farmer’s Markets Accepting SNAP Benefits
This layer displays the locations of farmer’s markets across the United States that accept EBT / SNAP benefits. Data is current as of July 12, 2025.
Food Hubs
Layer displays the location of food hubs across the US. Data was obtained from the USDA Local Food Directories on July 12, 2025.
Community Water System Fluoridation
This layer displays fluoridation data generated from the Water Fluoridation Reporting System (WFRS) as reported to the CDC. State level statistics include data from the biennial report originally published at https://www.cdc.gov/fluoridation/php/statistics/. State and county data include percentage of people, number of people, and number of water systems receiving fluoridated water. County level data is not displayed for all states. Participation in sharing county level data is voluntary and state programs determine if data will be shown.