
Wisconsin · Census place 59925
Onalaska, WI population, income and ZIP codes
Quick answer
The population of the city of Onalaska, Wisconsin (Onalaska, WI — Census place “Onalaska city”) is 18,909 residents, ranking #43 of 807 places in Wisconsin. Median household income is $84,898, the median home is worth $279,100 and median gross rent runs $1,096 a month. Looking for the Onalaska Wisconsin ZIP code list? 1 ZIP codes serve Onalaska, WI: 54650.
- Population
- 18,909Onalaska city residents
- Median household income
- $84,898Past 12 months, inflation adjusted
- Median home value
- $279,100Owner-occupied units
- Median gross rent
- $1,096Rent plus utilities, monthly
- Median age
- 40.3 yrsAll residents
- Homeownership rate
- 63%Owner-occupied households
Onalaska ZIP codes (Wisconsin)
Census ZCTAs whose delivery area overlaps Onalaska.
The Onalaska WI ZIP code list below covers 1 ZIP code. Open any one for its population, income, housing and rent profile.
What the numbers mean in Onalaska city
Housing cost measured against local earnings.
A household earning the Onalaska city median would spend about 15.5% of gross income on the median rent. The 30% mark is the federal threshold for cost burden, so anything above it signals a stretched rental market. The median home costs 3.3× the median household income; nationally that ratio sits near 4.5×. Poverty affects 5.9% of residents and 63% of households own their home.
Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year
Onalaska city, WI in context
How this area compares with national benchmarks.
Onalaska city is a mid-size town in Wisconsin, with 18,909 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #43 of 807 ranked by population — larger than 94% of them. The median age here is 40.3 years against 39.1 nationally, a slightly older profile than the country as a whole. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.
Households in Onalaska city earn a median of $84,898 a year, 8.1% above the national figure of $78,538 and 15% above the $73,880 median for the 395 Wisconsin cities we cover. Household income here is measured before tax and pooled across everyone at the address, which is why it reads higher than typical individual earnings in the same area. Poverty reaches 5.9% of residents here, less than half the 12.4% national rate.
The typical owner-occupied home in Onalaska city is valued at $279,100, 8% below the national figure and 32% above the $211,900 peer median, while median gross rent runs $1,096 a month, 22% below the national figure, or roughly $13,152 across a full year. A household on the local median income would put about 15.5% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 3.3×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 63% of occupied homes are owner-occupied versus 65% nationally, so the market leans more heavily on renters. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.
All values below were released by the Census for this exact geography, with no gap-filling on our side. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.
Compare with nearby places
Places of similar size in Wisconsin.
- Wisconsin Rapids city 18,756
- Fox Crossing village 18,960
- Marshfield city 18,718
- Howard village 20,261
- Oconomowoc city 18,385
- South Milwaukee city 20,547
- Menasha city 18,130
- Germantown village 20,940
Keep going
More Wisconsin coverage.
Frequently asked questions
Common questions about this area.
- What is the population of Onalaska city?
- Onalaska city has 18,909 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #43 of 807 in Wisconsin.
- What is the median household income in Onalaska city?
- Median household income in Onalaska city is $84,898 a year, 8.1% above the national figure of $78,538.
- How much does it cost to rent or buy in Onalaska city?
- Median gross rent is $1,096 a month and the median home value is $279,100, so rent absorbs about 15.5% of median household income.
- Is Onalaska city affordable compared with the rest of the US?
- Homes cost about 3.3× the local median income here versus roughly 3.9× nationally, so Onalaska city is more affordable to buy in than the typical US market, and rent takes 15.5% of median income against the 30% cost-burden line.
- How current is this Onalaska city data?
- All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.