American FactFinder Web Site

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The American FactFinder (AFF) web site is the primary tool to access data published by the Census Bureau. AFF allows you to access data from many Census Bureau sources: 2000 and 1990 Decennial Censuses, the Economic Censuses and the American Community Survey (ACS).

Selecting, Extracting and Manipulating Data

American FactFinder lets you select the data you need for the geography of your choice from summary data files such as:

• 2000 Census Summary Files 1 through 4
• 1990 Decennial Census Summary Tape Files 1 and 3
• American Community Survey Summary Tables
• Economic Census Summary Files

These summary data products are derived from data sets with pre-aggregated, or summarized, data records. American FactFinder lets you search, browse, retrieve, view, print, save, and download the data. You may request tabulations online or you can obtain an extract of the data set (tables) and use your own software to analyze the data.

Customizing Your Tabulations

American FactFinder permits you to create custom tabulations from microdata files. You can select the data set, geography and data tables you need; compute simple statistics; obtain a thematic map and in some cases create ratios from the data you have selected. You can also access both 2000 and 1990 census maps using AFF.

Microdata products are derived from data sets that contain individual data records. Public Use Microdata Samples (PUMS) from the 1990 Census of Population and Housing, the American Community Survey, and Census 2000 will be available. You can request extractions from the PUMS files and carry out any statistical analysis that you wish on your own computer or request custom tabulations from the data sets with American FactFinder.

Finding Census Bureau Products

There are hundreds of Census Bureau data products available on the Internet, including press releases, statistical abstracts, census briefs, and information bulletins. (These are predefined, static data products, so you cannot manipulate any of the data or information they contain.) The new American FactFinder system will let you search, browse, retrieve, view, print, and download Census Bureau products.

Note: These products are available on the Census Bureau Internet site at www.census.gov. Go to the Census Bureau's AFF Web Site, or click the AFF banner above, and get started today.

CLICK AFF BANNER TO GO DIRECTLY TO AFF WEBSITE