Denison demographics profile

Population density (sq mi)1,2755591
Median age32.938.037.7
Male/Female ratio1.0:11.0:11.0:1
Married (15yrs & older)60%60%55%
Families w/ Kids under 1853%44%43%
Speak English59%92%79%
Speak Spanish38%4%13%
Denison, IA has a population of 8,326 and is the 4,561st largest city in the United States. The population density is 1,275 per sq mi which is 2233% higher than the Iowa average and 1307% higher than the national average. The median age in Denison is 33 which is approximately 13% lower than the Iowa average of 38. In Denison, 60% of the population over 15 years of age are married, 59% speak English and 38% speak Spanish. 51% of Denison residents were born in Iowa, 26% were born out of state, 0% were born outside of the United States and 22% were foreign born.

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Did you know?

  • The population density in Denison is 2233% higher than Iowa.
  • The median age in Denison is 13% lower than Iowa.
  • In Denison 90.75% of the population is White.
  • In Denison 2.93% of the population is Black or African American.
  • In Denison 0.37% of the population is Asian.

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Denison population breakdown by race

Black or African American2.93%3.32%12.63%
American Indian0.50%0.32%0.82%
Native Hawaiian0.00%0.08%0.18%
Mixed race2.20%1.97%3.06%
Other race3.24%1.27%4.75%
In Denison, 46.0% 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

Denison age breakdown

Marital status

Age of children in married couples

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