Diagonal demographics profile

Population density (sq mi)3535591
Median age55.238.037.7
Male/Female ratio0.9:11.0:11.0:1
Married (15yrs & older)68%60%55%
Speak English98%92%79%
Speak Spanish2%4%13%
Diagonal, IA has a population of 319 and is the 22,146th largest city in the United States. The population density is 353 per sq mi which is 546% higher than the Iowa average and 290% higher than the national average. The median age in Diagonal is 55 which is approximately 45% higher than the Iowa average of 38. In Diagonal, 68% of the population over 15 years of age are married, 98% speak English and 2% speak Spanish. 74% of Diagonal residents were born in Iowa, 24% were born out of state, 0% were born outside of the United States and 1% were foreign born.

Did you know?

  • The population density in Diagonal is 546% higher than Iowa.
  • The median age in Diagonal is 45% higher than Iowa.
  • In Diagonal 99.06% of the population is Caucasian.
  • In Diagonal 0.00% of the population is African American.
  • In Diagonal 0.00% of the population is Asian.

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Diagonal population breakdown by race

African American0.00%3.32%12.63%
American Indian0.94%0.32%0.82%
Native Hawaiian0.00%0.08%0.18%
Mixed race0.00%1.97%3.06%
Other race0.00%1.27%4.75%
In Diagonal, 3.1% 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

Diagonal age breakdown

Marital status

Age of children in married couples

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