Storm Lake Flag

Storm Lake

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

Storm Lake is a city located in Buena Vista County, Iowa. Storm Lake has a 2026 population of 11,810. It is also the county seat of Buena Vista County. Storm Lake is currently growing at a rate of 0.79% annually and its population has increased by 4.88% since the most recent census, which recorded a population of 11,260 in 2020.

The median household income in Storm Lake is $62,765 with a poverty rate of 6.98%. The median age in Storm Lake is 30.9 years: 30.1 years for males, and 31.5 years for females. For every 100 females there are 93.5 males.

11.8K
Total Population
2,176
Density (mi²)
92 0.79%
Growth

Storm Lake Population

Storm Lake Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202611,810920.79%
202511,718910.78%
202411,627670.58%
202311,5601301.14%
202211,430950.84%
202111,335710.63%
202011,2608698.36%
201910,391-27-0.26%
201810,418-188-1.77%
201710,606-115-1.07%
201610,721-58-0.54%
201510,779-94-0.86%
201410,873500.46%
201310,823530.49%
201210,7701301.22%
201110,640-46-0.43%
201010,686860.81%
200010,0761,30714.9%
19908,769-45-0.51%
19808,8142232.6%
19708,59186311.17%
19607,72877411.13%
19506,9541,68031.85%
19405,2741,11726.87%
19304,15749913.64%
19203,65800%

Median Age

Overall: 30.9 years
Female: 31.5 years
Male: 30.1 years

Storm Lake Adults

There are 8,345 adults, (1,432 of whom are seniors) in Storm Lake.

Sex Ratio

Female: 5,905 (51.7%)
Male: 5,523 (48.3%)

Demographics

The racial composition of Storm Lake includes 46.04% White, 16.7% other race, 12.87% Asian, 4.05% Native Hawaiian or Pacific Islander, 3.77% Black or African American, and smaller percentages for Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White5,26146.04%
Other race1,90916.7%
Two or more races1,82315.95%
Asian1,47112.87%
Native Hawaiian or Pacific Islander4634.05%
Black or African American4313.77%
Native American700.61%
Race
Population ↓
Percentage (of total)
Other race1,84016.1%
Two or more races1,57813.81%
White1,48212.97%
Native American550.48%
Asian140.12%
Race
Population ↓
Percentage (of total)
White3,77933.07%
Asian1,45712.75%
Native Hawaiian or Pacific Islander4634.05%
Black or African American4313.77%
Two or more races2452.14%
Other race690.6%
Native American150.13%

Storm Lake Marital Status

Economics and Income Statistics

Storm Lake 's average per capita income is $49,512. Household income levels show a median of $62,765. The poverty rate stands at 6.98%.

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$102,900-
Families$88,616$104,164
Households$62,765$89,189
Non Families$50,996$61,391

$49,512

Average Income

$62,765

Median Household Income

6.98%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)