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

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