"State, county, and statistically equivalent boundaries are as of January 1, 2000." Includes lists of senate and house membership by state and location map. Insets: [Alaska] -- [Hawaii]. Ancillary maps: Guam -- American Samoa -- Puerto Rico and U.S. Virgin Islands. Available also through the Library of Congress Web site as a raster image.
United States. Bureau of the Census. Geography Division - United States. Bureau of the Census