United States Fast Facts
Data are for 2005 unless otherwise noted.
Transportation System Extent
All public roads: 4.01 million miles
Interstate: 46,873 miles
Road bridges: 591,078
Class I railroad trackage: 97,664 miles (97,496 miles in 2004)
Inland waterways: 29,627 miles
Public-use airports: 5,270 (575 certificated for air carrier operations)
Vehicles and Conveyances
Automobiles registered: 136.6 million
Light trucks registered: 95.3 million
Heavy trucks registered: 8.5 million
Buses registered: 0.8 million
Motorcycles registered: 6.2 million
Rail transit systems1: 21 commuter rail, 14 heavy rail (subway), 28 light rail
Recreational boats registered: 12.9 million
Geographic
Land area: 3.5 million sq. miles2
Percent of land area owned by federal government: 29.64
Persons per square mile: 79.62
Highest point: Mt. McKinley, AK
(20,320 ft.)
Lowest point: Death Valley, CA (–282 ft.)
Government Subdivisions
County governments: 3,0343
Municipal governments: 19,4293
Town governments: 16,5043
Congressional districts: 435
Demographic
Population: 296.4 million
Percent urban population: 792
Socioeconomic
Gross Domestic Product: $12.5 trillion
Civilian labor force: 149.3 million
Median household income: $46,242
Commuting (percentage of workers)
Car, truck, or van—drove alone: 77.0
Car, truck, or van—carpooled: 10.7
Public transportation: 4.7
Walked: 2.5
Taxicab, motorcycle, bicycled or other means: 1.6
Worked at home: 3.6
12004
22000
32002
42003
Sources
Transportation System Extent
All public roads, Interstate: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics 2005, Washington, DC: 2006, table HM-20;
Road bridges: U.S. Department of Transportation, Federal Highway Administration, Office of Bridge Technology, National Bridge Inventory: Highway Bridge by Owner, Washington, DC: 2006, available at http://www.fhwa.dot.gov/bridge/britab.htm as of Dec. 12, 2006;
Class I railroad trackage: Association of American Railroads, Railroad Facts, Washington, DC: annual issues;
Inland waterways: U.S. Army Corps of Engineers, Navigation Data Center, National Waterway Network, December 2006;
Public use airports: U.S. Department of Transportation, Federal Aviation Administration, Administrator’s Fact Book, Washington, DC: November 2006, p.16., available at http://www.faa.gov/about/office_org/headquarters_offices/aba/admin_factbook/ as of Dec. 12, 2006.
Vehicles and Conveyances
Automobiles, light trucks, heavy trucks, buses, motorcycles: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics 2005, Washington, DC: forthcoming, table VM-1;
Rail transit systems: American Public Transportation Association, 2006 Public Transportation Fact Book, Washington, DC: 2006, available at http://www.apta.com/research/stats/rail/index.cfm as of Dec. 12, 2006;
Recreational boats: U.S. Department of Transportation, U.S. Coast Guard, Boating Statistics, 2005, Washington, DC: 2006, available at http://www.uscgboating.org/statistics/Boating_Statistics_2004.pdf as of Dec. 12, 2006.
Geographic
U.S. Census Bureau, Statistical Abstract of the United States 2006, Washington, DC: 2006, available at http://www.census.gov/compendia/statab/ as of Dec. 12, 2006.
Government Subdivisions: Census Bureau, Statistical Abstract of the United States 2006, Washington, DC: 2006, available at http://www.census.gov/compendia/statab/ as of Dec. 12, 2006.
Demographic
Population: U.S. Census Bureau, Annual Estimates of the Population by Race Alone and Hispanic or Latino Origin for the United States and States: July 1, 2005, available at http://www.census.gov/popest/states/asrh/SC-EST2005-04.html as of Dec. 12, 2006;
Percent urban population: U.S. Census Bureau, Statistical Abstract of the United States 2006, Washington, DC: 2006, available at http://www.census.gov/compendia/statab/ as of Dec. 12, 2006.
Socioeconomic
Gross domestic product: U.S. Department of Commerce, Bureau of Economic Analysis, Current-Dollar and "Real" Gross Domestic Product, available at http://www.bea.gov/bea/dn/gdplev.xls as of Dec. 12, 2006;
Civilian labor force: U.S. Department of Labor, Bureau of Labor Statistics, Labor Force Statistics from the Current Population Survey, available at http://www.bls.gov/cps/ as of Dec. 12, 2006;
Median household income: U.S. Census Bureau, 2004 American Community Survey, United States Fact Sheet, available at http://factfinder.census.gov as of Dec. 12, 2006.
Commuting
U.S. Census Bureau, 2004 American Community Survey, United States, Commuting Characteristics by Sex, available at http://factfinder.census.gov as of Dec. 12, 2006.
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