Storm Lake Population

1880–2026

11,661

2026 projection

3.5% since 2020 (increase)

02K4K6K8K10K12K18801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Storm Lake. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202611,661+710.61%
202511,590+420.36%
202411,548-30.03%
202311,551+1211.06%
202211,430+870.77%
202111,343+810.72%
202011,262+8718.38%
201910,391-270.26%
201810,418-1881.77%
201710,606-1151.07%

Showing 10 of 30 years.

Storm Lake Demographics

30.9median age

Median age

Female31.5 yrs
Male30.1 yrs

Adults

8,345
1,432 seniors · 17%6,913 other adults

Sex

Female 51.7% · 5,905Male 48.3% · 5,523

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 114 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Storm Lake Income

$62,765median household income

Median household income

$62,765

Half of households earn more, half earn less

Median earnings

$49,512

Typical yearly pay for a worker 25 or older.

Poverty rate

7%

About 1 in 14 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Storm Lake Marital Status

44% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married44%46%42%
Never married36%37%36%
Divorced11%10%12%
Widowed6%3%9%
Separated3%4%2%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201