To provide county and state boundary data for the U.S.

To provide demographic data for the U.S.

To provide access to demographic data for the U.S.

To provide population and housing data for the U.S.

To provide access to demographic data for the U.S.

To provide an authoritative boundary layer for the geographies associated with the Public Use Micro Sample (PUMS) data files.

To provide population and housing data for the U.S.

To provide population and housing data for the U.S.

To provide migration data at the county and state levels for the U.S.

To provide street intersection data for each county in the U.S.

To provide US housing and related data for demographic analysis; The samples can be extended to analysis of the whole United States for many purposes. Comparative analysis across different groups is possible using the PUMS data.