Onalaska, Wisconsin Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Onalaska, Wisconsin is 18,909 as of the 2023 American Community Survey, making it the 43rd-largest city in Wisconsin. The median household income is $84,898, the median home value is $279,100, and the median age is 40.3.
The population has grown 11.6% since 2010 (17,824 → 19,898).
18,909
Population
1782
People / sq mi
$84,898
Median Income
$279,100
Median Home Value
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Onalaska covers 10.6 sq mi of land at 1782 people per square mile.
About Onalaska, WI
The poverty rate is what most separates Onalaska from the typical city: 3.9% of residents live below the federal poverty line, against 12.4% nationally. With 18,909 residents, Onalaska is a city in Wisconsin. It ranks #43 among cities in Wisconsin by population.
The typical household here earns about $84,898, above the US median of $78,538. Poverty is relatively low for US cities at 3.9%, below the national 12.4%. The typical home is valued at $279,100, with typical rent around $1,096.
41.4% of adults 25 and older hold a bachelor’s degree, above the national average of 35.0%. Remote work is on the lower side here, at 8.1%, below the national 14.0%, and the average commute runs about 18 minutes each way.
Onalaska city Population History (2010-2024)
The city of Onalaska city had a population of 17,824 in 2010 and 19,898 in 2024, a 11.6% growth over 14 years. The peak was 19,898 in 2024. Average annual growth rate: 0.79%.
19,898
Population (2024)
17,824
Population (2010)
19,898
Peak (2024)
0.79%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 17,824 |
| 2011 | 18,015 |
| 2012 | 18,202 |
| 2013 | 18,228 |
| 2014 | 18,290 |
| 2015 | 18,379 |
| 2016 | 18,614 |
| 2017 | 18,667 |
| 2018 | 18,673 |
| 2019 | 18,943 |
| 2020 | 18,867 |
| 2021 | 19,017 |
| 2022 | 19,359 |
| 2023 | 19,604 |
| 2024 | 19,898 |
Race & Ethnicity
| White | 86.4% |
| Black or African American | 2.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.4% |
| Two or More Races | 0.0% |
Economy & Income
$84,898
Median Household Income
$50,428
Per Capita Income
3.9%
Poverty Rate
2.2%
Unemployment Rate
Housing
$279,100
Median Home Value
$1,096
Median Rent
63.0%
Owner-Occupied
Education
98.6%
High School+
41.4%
Bachelor's+
Commute
0.0%
Drive Alone
83.1%
Public Transit
8.1%
Work From Home
17.9 min
Avg Commute
Community Profile
30.8%
Foreign Born
91.8%
Non-English at Home
6.4%
Veterans
11.3%
With Disability
95.6%
Health Insurance
93.5%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 31.9% |
| Manufacturing | 12.8% |
| Construction | 6.5% |
| Information | 6.3% |
| Finance, Insurance & Real Estate | 5.3% |
| Public Administration | 5.2% |
| Retail Trade | 4.2% |
| Arts, Entertainment & Food Services | 2.9% |
| Education, Health Care & Social Services | 2.4% |
| Transportation & Warehousing | 0.8% |
| Agriculture & Mining | 0.3% |
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Frequently Asked Questions
Onalaska, Wisconsin has a population of 18,909 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 43rd-largest city in Wisconsin.
The median household income in Onalaska, Wisconsin is $84,898, with 3.9% of residents living below the federal poverty level.
The median home value in Onalaska, Wisconsin is $279,100, with median monthly rent at $1,096 and a homeownership rate of 63.0%.
The median age in Onalaska, Wisconsin is 40.3 years. The population is 47.6% male and 52.4% female.
The population has grown 11.6% since 2010 (17,824 → 19,898).
Where to stay in Onalaska
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.