Storm Lake demographics profile

StatisticStorm LakeIowaNational
Population density (sq mi)2,0425591
Median age28.438.037.7
Male/Female ratio1.1:11.0:11.0:1
Married (15yrs & older)53%60%55%
Families w/ Kids under 1861%44%43%
Speak English48%92%79%
Speak Spanish36%4%13%
Storm Lake, IA has a population of 10,768 and is the 3,733rd largest city in the United States. The population density is 2,042 per sq mi which is 3638% higher than the Iowa average and 2154% higher than the national average. The median age in Storm Lake is 28 which is approximately 25% lower than the Iowa average of 38. In Storm Lake, 53% of the population over 15 years of age are married, 48% speak English and 36% speak Spanish. 45% of Storm Lake residents were born in Iowa, 25% were born out of state, 1% were born outside of the United States and 29% were foreign born.

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Did you know?

  • The population density in Storm Lake is 3638% higher than Iowa.
  • The median age in Storm Lake is 25% lower than Iowa.
  • In Storm Lake 66.82% of the population is White.
  • In Storm Lake 5.05% of the population is Black or African American.
  • In Storm Lake 15.21% of the population is Asian.

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Storm Lake population breakdown by race

RaceStorm LakeIowaNational
Black or African American5.05%3.32%12.63%
American Indian0.00%0.32%0.82%
Native Hawaiian2.07%0.08%0.18%
Mixed race1.91%1.97%3.06%
Other race8.93%1.27%4.75%
In Storm Lake, 37.6% 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

Storm Lake age breakdown

Marital status

Age of children in married couples

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