Derby demographics profile

Population density (sq mi)5115591
Median age41.038.037.7
Male/Female ratio0.6:11.0:11.0:1
Married (15yrs & older)63%60%55%
Families w/ Kids under 1819%44%43%
Speak English93%92%79%
Speak Spanish1%4%13%
Derby, IA has a population of 133 and is the 26,091st largest city in the United States. The population density is 511 per sq mi which is 836% higher than the Iowa average and 464% higher than the national average. The median age in Derby is 41 which is approximately 8% higher than the Iowa average of 38. In Derby, 63% of the population over 15 years of age are married, 93% speak English and 1% speak Spanish. 80% of Derby residents were born in Iowa, 20% were born out of state, 0% were born outside of the United States and 0% were foreign born.

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Did you know?

  • The population density in Derby is 836% higher than Iowa.
  • The median age in Derby is 8% higher than Iowa.
  • In Derby 73.68% of the population is White.
  • In Derby 0.00% of the population is Black or African American.
  • In Derby 0.00% of the population is Asian.

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Derby population breakdown by race

Black or African American0.00%3.32%12.63%
American Indian0.00%0.32%0.82%
Native Hawaiian0.00%0.08%0.18%
Mixed race26.32%1.97%3.06%
Other race0.00%1.27%4.75%
In Derby, 0.0% 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

Derby age breakdown

Marital status

Age of children in married couples

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