FEMA Flood Hazard Zones

The Flood Hazard Zones are extracted from the National Flood Hazard Layer, which is a database that contains FEMA’s flood hazard map data. The database contains flood hazard information and supporting data used to develop the information. The primary flood … Continued

National Hydrography Dataset (NHD) Flowline

The National Hydrography Dataset (NHD) is used to portray surface water. The NHD represents the drainage network with features such as rivers, streams, canals, lakes, ponds, coastline, etc. The principal components of the NHD are: NHDFlowline: This is the fundamental … Continued

Food Desert Census Tracts, 2019

This layer displays the location of Food Deserts across the United States based on conditions in 2015. The Healthy Food Financing Initiative (HFFI) Working Group considers a food desert as a low-income census tract where a substantial number or share … Continued

Presidential Election Results, 2020

2020 election results at the county-level are scraped from results published by Fox News, Politico, and the New York Times and made available on GitHub. Total votes cast were divided by the total citizen voting age population as reported by … Continued

Food Desert Census Tracts, Change 2015-2019

This layer displays the change in census tracts labeled as Food Deserts from 2015 to 2019. The Healthy Food Financing Initiative (HFFI) Working Group considers a food desert as a low-income census tract where a substantial number or share of … Continued

School Shootings

This layer displays the location of school shootings across the country. Shootings are categorized by the situation and the size varies by the number of victims.

Income from Transfer Payments

Layer displays information about personal income from transfer payments from the Bureau of Economic Analysis (BEA) Local Area Personal Income data series. In personal income, transfer receipts are benefits received by persons for which no current services are performed. They … Continued

Business Vacancies – 2020 Q4

This layer displays business vacancy rates and total business vacancies in census tracts across the United States. Vacancy rates are reported quarterly.

Residential Vacancies – 2020 Q4

This layer displays residential vacancy rates and total residential vacancies in census tracts across the United States. Vacancy rates are reported quarterly.