Decennial Census of Population and Housing

The U.S. Census counts each resident of the country, where they live on April 1, every ten years ending in zero. The Constitution mandates the enumeration to determine how to apportion the House of Representatives among the states.

Population

• Total population: 1850-2020

• 5-year age groups by sex, race, and Hispanic origin

• Selected age groups by sex, race, and Hispanic origin

• Single-year of age, sex, race, and Hispanic or Latino origin

• Race and Hispanic or Latino origin: 1990-2020

• Urban and rural population: 2020

• Population change in Iowa: 2010-2020

• Population for Iowa cities by county

• Group quarters population by type: 2020

• 2020 Census apportionment

• Total population, population density, and land area

Housing

• Household type by race and Hispanic origin: 2020
• Tenure by age of householder by race and Hispanic origin: 2020
• Tenure by household size: 2020
• Tenure by race and Hispanic origin: 2020
• Occupancy status: 2020