Where do the datasets come from?
The data come from many sources. Sources of geographic data include State Health Departments, Nassau and Suffolk counties, and the U.S. Postal Service. Sources for demographic data include the U.S. Bureau of the Census. Health data sources include the New York State Department of Health. Environmental data are provided by the State Health Departments, U.S. Environmental Protection Agency (EPA), U.S. Geological Survey (USGS), and U.S. Department of Agriculture (USDA).