Ontario, Wisconsin Demographics & Population 2026
During the 2020–2024 ACS period, Ontario, Wisconsin had a total population of 422, the 567th largest village in Wisconsin, with a median household income of $50,250, which is 35% lower than the state average. The poverty rate is 9.5%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 35% below the state average, indicating significant economic challenges.
Ontario Quick Facts
How Ontario Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 380 | 422 | +11.1% |
| Median household income | $57,500 | $50,250 | -12.6% |
| Median home value | $130,000 | $141,700 | +9.0% |
How Ontario Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 37 | National average: 61
Education
Educational Attainment (Adults 25+)
Ontario Rankings in Wisconsin
Explore Wisconsin Rankings
Other Cities in Monroe County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Sparta | 9,950 | $64,973 | 11.3% | $180,600 |
| Tomah | 9,532 | $51,274 | 16.7% | $174,300 |
| Cashton | 1,281 | $70,074 | 20.7% | $140,800 |
| Norwalk | 662 | $66,146 | 8.6% | $96,700 |
| Wilton | 532 | $85,598 | 6.3% | $166,800 |
| Warrens | 438 | $67,321 | 6.6% | $155,100 |
| Kendall | 379 | $58,750 | 6.9% | $107,500 |
| Oakdale | 321 | $88,182 | 8.4% | $178,100 |
| Wyeville | 159 | $65,000 | 9.4% | $137,500 |
| Cataract | 138 | $51,964 | 9.2% | $212,500 |
Cities Similar to Ontario
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Fairchild | 414 | $48,750 | $91,700 | 8.8% | 16.2% |
| Suring | 411 | $49,167 | $85,400 | 12.6% | 24.4% |
| Poy Sippi | 433 | $52,750 | $145,000 | 12.1% | 10.6% |
| Prairie Farm | 423 | $45,313 | $138,500 | 6.2% | 22.8% |
| Three Lakes | 410 | $44,844 | $170,000 | 35.3% | 9.8% |
A note before these figures: with a population of 422, Ontario's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.
Population Overview
Ontario is a small community located in Wisconsin, within Monroe County. The total population is 422. It ranks as the 567th most populous out of 808 Census-designated places in Wisconsin.
Age Demographics
The median age in Ontario is 37.1 years. This is 8% lower than the state median of 40.2 years. 10.2% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.
Economy, Income & Housing
The median household income in Ontario is $50,250. This is 35% lower than the state median of $77,485. It is also 38% lower than the national median of $80,734. The poverty rate stands at 9.5%. This is 10% lower than the state poverty rate of 10.5%. The unemployment rate is 3.8%. This is 18% higher than the state rate of 3.3%. The median home value is $141,700. Housing costs are 47% lower than the state median of $266,500. With a home-value-to-income ratio of just 2.8x, Ontario is one of the most affordable housing markets in the area. 82.9% of occupied housing units are owner-occupied. This homeownership rate is 22% higher than the state average of 67.8%.
Race & Ethnicity
Ontario has a predominantly White (non-Hispanic) population, comprising 85.1% of all residents. Hispanic or Latino residents account for 13.5%. The Hispanic or Latino population is significantly higher than the state average (13.5% vs 8.0%).
Education
12.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 63% lower than the state rate of 33.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 81.6%.
Data Sources & Methodology
All demographic data for Ontario, Wisconsin is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Wisconsin state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 808 Census-designated places in Wisconsin. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
Free data download: Get all Wisconsin city and county demographics as CSV. Download Cities CSV | Download Counties CSV
Frequently Asked Questions
What is the population of Ontario, Wisconsin?
Ontario, Wisconsin has a population of 422 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Ontario, WI?
The median household income in Ontario is $50,250, which is 38% lower than the national median of $80,734.
What is the poverty rate in Ontario, WI?
The poverty rate in Ontario is 9.5%. This means approximately 40 residents live below the federal poverty line.
What is the racial makeup of Ontario, Wisconsin?
Ontario's population is 85.1% White, 0.0% Black, 13.5% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Ontario, WI?
The median home value in Ontario is $141,700. The home-value-to-income ratio is 2.8x.
How educated is Ontario, Wisconsin?
12.5% of adults (25+) in Ontario hold a bachelor's degree or higher, and 3.3% hold a graduate or professional degree.