Onalaska Population

2010–2026

3,346

2026 projection

8.8% since 2020 (increase)

05001K1.5K2K2.5K3K3.5K201020122014201620182020202220242026

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 Onalaska. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20263,346+571.73%
20253,289-180.54%
20243,307+1203.77%
20233,187-50.16%
20223,192+501.59%
20213,142+662.15%
20203,076+792.64%
20192,997+1505.27%
20182,847+782.82%
20172,769+552.03%

Showing 10 of 17 years.

Onalaska Demographics

43.8median age

Median age

Female36.9 yrs
Male45.5 yrs

Adults

2,457
540 seniors · 22%1,917 other adults

Sex

Female 56.8% · 1,823Male 43.2% · 1,387

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 32 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

Onalaska Income

$51,912median household income

Median household income

$51,912

Half of households earn more, half earn less

Median earnings

$32,237

Typical yearly pay for a worker 25 or older.

Poverty rate

23.7%

About 1 in 4 residents

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

Onalaska Marital Status

50% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married50%59%43%
Never married29%30%28%
Divorced9%10%8%
Widowed12%1%21%
Separated<1%0%<1%

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