Storm Lake

County:: Buena Vista County
County Seat:: Yes
Area (mi²):: 5.427
State:: Iowa

Storm Lake is a city located in Buena Vista County, Iowa. Storm Lake has a 2025 population of 11,552. It is also the county seat of Buena Vista County. Storm Lake is currently growing at a rate of 0.51% annually and its population has increased by 2.62% since the most recent census, which recorded a population of 11,257 in 2020.

The average household income in Storm Lake is $84,263 with a poverty rate of 7.74%. The median age in Storm Lake is 31.2 years: 29.7 years for males, and 32.6 years for females.

Demographics

The racial composition of Storm Lake includes 52.95% White, 14.85% Asian, 12.38% other race, 3.85% Native Hawaiian or Pacific Islander, 3.76% Black or African American, and smaller percentages for Native American and multiracial populations.

Population by Race

White

Asian

Other race

Two or more races

Native Hawaiian or Pacific Islander

Black or African American

Native American

Race	Population	Percentage (of total)
White	5,970	52.95%
Asian	1,674	14.85%
Other race	1,396	12.38%
Two or more races	1,342	11.9%
Native Hawaiian or Pacific Islander	434	3.85%
Black or African American	424	3.76%
Native American	35	0.31%

Storm Lake Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Storm Lake's average per capita income is $46,071. Household income levels show a median of $58,341. The poverty rate stands at 7.74%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$89,583	-
Families	$88,125	$101,502
Households	$58,341	$84,263
Non Families	$48,464	$59,393

$46,071

Average Income

$58,341

Median Household Income

7.74%

Poverty Rate