Washington demographics profile

Population density (sq mi)1,4055591
Median age43.338.037.7
Male/Female ratio0.9:11.0:11.0:1
Married (15yrs & older)59%60%55%
Families w/ Kids under 1842%44%43%
Speak English92%92%79%
Speak Spanish6%4%13%
Washington, IA has a population of 7,368 and is the 4,998th largest city in the United States. The population density is 1,405 per sq mi which is 2472% higher than the Iowa average and 1451% higher than the national average. The median age in Washington is 43 which is approximately 14% higher than the Iowa average of 38. In Washington, 59% of the population over 15 years of age are married, 92% speak English and 6% speak Spanish. 73% of Washington residents were born in Iowa, 22% were born out of state, 1% were born outside of the United States and 4% were foreign born.

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Did you know?

  • The population density in Washington is 2472% higher than Iowa.
  • The median age in Washington is 14% higher than Iowa.
  • In Washington 92.85% of the population is White.
  • In Washington 1.97% of the population is Black or African American.
  • In Washington 0.79% of the population is Asian.

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Washington population breakdown by race

Black or African American1.97%3.32%12.63%
American Indian0.62%0.32%0.82%
Native Hawaiian0.15%0.08%0.18%
Mixed race1.55%1.97%3.06%
Other race2.08%1.27%4.75%
In Washington, 7.9% of people are of Hispanic or Latino origin.
Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

Languages spoken

Place of birth by citizenship

Household income distribution

Source of income

Washington age breakdown

Marital status

Age of children in married couples

Source: The Washington, IA demographics data displayed above is derived from the 2016 United States Census Bureau American Community Survey (ACS).