Onalaska Population

2011–2026

665

2026 projection

54.3% since 2020 (increase)

02004006008001K20122014201620182020202220242026

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

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Population by year

Population estimates for Onalaska. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026665+20.30%
2025663+60.46%
2023657+589.68%
2022599+519.31%
2021548+11727.15%
2020431-11320.77%
2019544-26332.59%
2018807+9813.82%
2017709-638.16%
2016772-20520.98%

Showing 10 of 15 years.

Onalaska Demographics

38.4median age

Median age

Female69.4 yrs
Male32.3 yrs

Adults

700
278 seniors · 40%422 other adults

Sex

Female 41.9% · 355Male 58.1% · 493

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 8 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 Marital Status

65% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married65%64%67%
Never married15%28%3%
Divorced8%0%17%
Widowed7%0%14%
Separated4%8%0%

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