City · Iowa
Storm Lake, Iowa
Storm Lake, city, in Buena Vista County, Iowa. Storm Lake had 11,590 residents on July 1, 2025 by the Census Bureau's estimate, up 2.8% since 2020; the 2020 Census counted 11,269 and the ACS 2020-2024 5-year estimates put it at 11,428 (±49). GEOID 1975630.
Residents, July 2025 estimate
11,590
Census Bureau estimate (no margin published)
2020 Census count: 11,269 · ACS 2020-2024: 11,428 ±49
Median household income
$62,765
±$16,358 (90% margin)
Iowa: $75,059
Median home value
$172,200
±$17,988 (90% margin)
Iowa: $208,000
Median gross rent
$898
±$64 (90% margin)
Iowa: $972
Where is Storm Lake and what county is it in?
Storm Lake is a city in Buena Vista County, Iowa. It covers 5.4 square miles of land, 2,076 residents per square mile in 2020.
Storm Lake is in the Storm Lake, IA micropolitan statistical area (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Storm Lake, and is it growing?
The Census Bureau estimates that 11,590 people lived in Storm Lake on July 1, 2025, up 2.8% since 2020, faster than Iowa (+1.5%). The 2020 Census counted 11,269 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 11,428 (±49).
| Measure | Storm Lake | Buena Vista County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 11,428 ±49 | 20,753 | +870 |
| Households | 3,975 ±164 | 7,546 | +349 |
| Average household size | 2.68 ±0.11 | 2.62 | no clear change |
| Housing units | 4,198 ±142 | 8,293 | +263 |
Storm Lake's population since 2000
From 10,076 in 2000 to 11,590 in 2025: up 15.0%. The 2000, 2010 and 2020 figures are census counts, each for Storm Lake as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Storm Lake?
The median resident of Storm Lake is 30.9 years old; 27.0% are under 18 and 12.5% are 65 or older. The largest group is Hispanic or Latino residents (of any race) at 43.5%, then non-Hispanic white residents at 33.1%. 30.3% of residents were born outside the United States.
| Measure | Storm Lake | Buena Vista County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 30.9 ±1.2 | 35.6 | no clear change |
| Under 18 years | 27.0% ±1.7 pts | 26.6% | – |
| 65 years and over | 12.5% ±1.7 pts | 16.3% | – |
| Male | 48.3% ±1.5 pts | 50.8% | – |
| Hispanic or Latino (any race) | 43.5% ±2.0 pts | 29.4% | +6.4 pts |
| White alone, not Hispanic | 33.1% ±2.8 pts | 52.1% | −4.4 pts |
| Black or African American alone, not Hispanic | 3.8% ±1.2 pts | 3.3% | no clear change |
| Asian alone, not Hispanic | 12.7% ±2.3 pts | 9.5% | −5.3 pts |
| American Indian and Alaska Native alone, not Hispanic | 0.1% ±0.2 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 4.1% ±0.9 pts | 2.9% | – |
| Two or more races, not Hispanic | 2.1% ±0.9 pts | 2.4% | – |
| Some other race alone, not Hispanic | 0.6% ±0.8 pts | 0.4% | – |
| Born outside the United States | 30.3% ±3.9 pts | 21.3% | no clear change |
| Speak a language other than English at home (age 5+) | 53.3% ±3.9 pts | 36.5% | – |
| Civilian veterans (age 18+) | 2.4% ±1.0 pts | 4.1% | – |
| With a disability | 10.1% ±2.7 pts | 10.3% | – |
| No health insurance coverage | 7.2% ±2.7 pts | 6.2% | −5.3 pts |
| High school graduate or higher (age 25+) | 72.3% ±5.6 pts | 81.3% | – |
| Bachelor's degree or higher (age 25+) | 18.9% ±4.1 pts | 22.2% | no clear change |
| Graduate or professional degree (age 25+) | 7.2% ±3.0 pts | 7.5% | – |
| Lived in the same house a year earlier | 92.7% ±2.1 pts | 90.8% | – |
| Moved from another state in the past year | 2.8% ±1.5 pts | 2.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Storm Lake earn?
Half of Storm Lake's 3,975 households earn less than $62,765 a year (±$16,358), against $71,719 in Buena Vista County and $75,059 in Iowa. In 2015-2019 it was $62,230 in 2024 dollars; the margins of error cannot tell the two periods apart. 7.0% of residents live below the poverty line.
| Measure | Storm Lake | Buena Vista County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $62,765 ±$16,358 | $71,719 | no clear change |
| Mean household income | $89,189 ±$10,483 | $94,361 | – |
| Per capita income | $30,603 ±$3,042 | $34,666 | +$4,275 |
| People below the poverty line | 7.0% ±2.9 pts | 7.8% | −9.4 pts |
| Children under 18 below the poverty line | 8.5% ±6.1 pts | 9.4% | – |
| Households receiving SNAP | 11.7% ±4.6 pts | 10.0% | – |
| Households with a computer | 97.2% ±1.5 pts | 96.4% | – |
| Households with a broadband subscription | 95.1% ±2.9 pts | 92.1% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Storm Lake?
Owners occupy 66.3% of Storm Lake's occupied homes and renters 33.7%. The median owner-occupied home is valued at $172,200 by its owner (±$17,988). The median renter pays $898 a month including utilities, and 23.4% of renters pay 35% or more of their income on rent.
| Measure | Storm Lake | Buena Vista County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $172,200 ±$17,988 | $159,500 | no clear change |
| Median gross rent | $898 ±$64 | $894 | no clear change |
| Renters paying 35% or more of income on rent | 23.4% ±9.9 pts | 25.8% | no clear change |
| Median monthly owner costs, with a mortgage | $1,373 ±$168 | $1,331 | – |
| Owner-occupied homes | 66.3% ±6.0 pts | 73.2% | +14.6 pts |
| Renter-occupied homes | 33.7% ±6.0 pts | 26.8% | – |
| Housing units | 4,198 ±142 | 8,293 | +263 |
| Homeowner vacancy rate | 1.3% ±2.0 pts | 1.4% | – |
| Rental vacancy rate | 7.8% ±6.6 pts | 10.8% | – |
| Single-family detached homes | 65.7% ±6.3 pts | 76.4% | – |
| Mobile homes | 2.0% ±1.7 pts | 2.3% | – |
| Built 2020 or later | 0.5% ±0.6 pts | 0.4% | – |
| Built 2010 to 2019 | 13.9% ±5.4 pts | 9.4% | – |
| Built 1939 or earlier | 22.4% ±5.8 pts | 28.1% | – |
| Households with no vehicle | 1.9% ±1.6 pts | 1.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Storm Lake building?
Builders took permits for 2 new housing units in Storm Lake in 2025 (2 in single-family houses), 0.2 per 1,000 residents against 4.2 across Iowa.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Storm Lake work and get to work?
68.0% of Storm Lake's workers drive alone and 4.3% work from home. The average trip to work takes 10.1 minutes. The unemployment rate in 2020-2024 averaged 4.4%.
| Measure | Storm Lake | Buena Vista County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 70.3% ±3.6 pts | 69.0% | – |
| Unemployment rate | 4.4% ±1.8 pts | 5.5% | −3.6 pts |
| Drove alone to work | 68.0% ±5.3 pts | 72.5% | – |
| Carpooled | 20.1% ±5.0 pts | 16.4% | – |
| Public transportation | 1.0% ±1.2 pts | 0.6% | – |
| Walked | 6.1% ±2.3 pts | 4.4% | – |
| Worked from home | 4.3% ±1.3 pts | 5.6% | no clear change |
| Mean travel time to work | 10.1 min ±1.2 | 14.0 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Storm Lake?
2 census tracts lie mostly in Storm Lake, and 1 more reaches into it (2020 census blocks). Their median household incomes run from $59,091 (Tract 9604) to $70,278 (Tract 9605).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9604Buena Vista County | 6,315 | $59,091 |
| Tract 9605Buena Vista County | 5,736 | $70,278 |
| Tract 9606Buena Vista County | 3,864 | $91,620 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Storm Lake) · Census block assignment files
How does Storm Lake compare with other places in Iowa?
By the Census Bureau's July 2025 estimates, Storm Lake is the 2,899th-most populous of the 19,476 U.S. incorporated places that have one and the 34th-most populous of 939 in Iowa.
Storm Lake ranks 194th of 279 places in Iowa with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 34th | 939 |
| Growth 2020-2025 (PEP) | 68th | 275 |
| Residents per square mile | 14th | 279 |
| Median household income | 194th | 279 |
| Per capita income | 239th | 279 |
| Median home value | 134th | 279 |
| Median gross rent | 101st | 266 |
| Poverty rate | 176th | 232 |
| Bachelor's degree or higher | 220th | 279 |
| Median age | 267th | 279 |
| Owner-occupied share | 221st | 279 |
| Work from home | 209th | 221 |
| Travel time to work | 279th | 279 |
Storm Lake's figures with every place in Iowa (CSV)
Every place in Iowa, sortable · Compare Storm Lake with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Storm Lake?
9 of the 57 figures for Storm Lake on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Storm Lake are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Storm Lake.