American FactFinder (AFF) is an online source for population, housing, economic and geographic data that presents the results from four key data programs: Decennial Census of Housing and Population , 1990 and 2000; American Community Survey, 2001-present; Population Estimates Program, 2005-present; Economic Census 1997 and 2002; Annual Economic Surveys, 2003-present.

Database of statistics about New York City from 1980 to the present. Consists of official statistical data from U.S., New York State, and New York City agencies. Includes population statistics, housing data, immigration trends, socio-economic indicators, birth and death data, hospitalizations, and more. Data is presented for the geographies that are unique to New York City.

"Our objective is to help visually analyze and understand the demography of the U.S. through the use of interactive maps and data reports. Our primary functions include Demographic Data Analysis, Interactive Map/Report Design and Software Development. Our main goal is to visually display the demographic change that has occurred in the U.S. since 1790 through the present, for the country over all down to the level of the county. For more recent years, one can display areas as small as your own neighborhood. Certain cities may even be displayed as far back as 1910. To do this we have developed a collection of interactive demographic maps that can be viewed, queried and manipulated on our site."