About the DOT

Iowa farmer on tractor
DID YOU KNOW? With populations of 15
people each, Beaconsville and LeRoy are
the two smallest towns in Iowa. (2019)



56,271.55 square miles in total area (includes 402.2 square miles of water); ranks 23rd in the nation in total area. (2006)

Geographic center

In Story County, 5 miles northeast of Ames


3,155,070 (2019, U.S. Census estimate)

Per capita personal income (dollars per person)

52,636 (2019, Iowa Workforce Development)

Governmental jurisdictions

99 counties and 944 incorporated towns and cities; city populations range from 15 in Beaconsfield to 204,220 in Des Moines (Iowa League of Cities, 2019)

Labor force

1,691,000 persons in labor force, rate of unemployment 2.7 percent (Iowa Workforce Development March 2019)

Travel characteristics

Information on topics such as household fleet, vacation travel, long-distance travel, congestion, and energy use, visit the U.S. DOT, Federal Highway Administration's National Household Travel Survey website.