Eureka, Wisconsin Demographics & Population 2026
During the 2020–2024 ACS period, Eureka, Wisconsin had a total population of 167, the 713th largest community in Wisconsin, with a median household income of $54,500, which is 30% lower than the state average. The poverty rate is 1.2%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- An exceptionally low poverty rate of 1.2% — among the lowest in Wisconsin.
Eureka Quick Facts
How Eureka 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 | 255 | 167 | -34.5% |
| Median household income | $67,083 | $54,500 | -18.8% |
| Median home value | $143,200 | $164,500 | +14.9% |
How Eureka 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+)
Eureka Rankings in Wisconsin
Explore Wisconsin Rankings
Other Cities in Winnebago County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Oshkosh | 66,729 | $62,188 | 17.5% | $177,700 |
| Neenah | 27,336 | $75,374 | 8.6% | $210,700 |
| Fox Crossing | 19,131 | $79,187 | 8.2% | $248,100 |
| Menasha | 18,273 | $64,698 | 12.0% | $191,800 |
| Omro | 3,642 | $62,000 | 8.1% | $197,900 |
| Winneconne | 2,511 | $82,411 | 5.4% | $218,100 |
| Butte des Morts | 1,064 | $121,667 | 1.9% | $404,100 |
| Winchester | 569 | $88,190 | 5.3% | $222,700 |
| Waukau | 325 | N/A | 1.8% | $189,400 |
Cities Similar to Eureka
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Mount Sterling | 164 | $47,188 | $132,800 | 19.0% | 9.2% |
| Weyerhaeuser | 161 | $61,250 | $95,000 | 4.7% | 19.3% |
| Eland | 169 | $66,250 | $145,800 | 10.8% | 3.0% |
| Edmund | 187 | $54,773 | $157,500 | 1.3% | 30.5% |
| Catawba | 170 | $67,955 | $58,500 | 9.0% | 15.3% |
A note before these figures: with a population of 167, Eureka'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
Eureka is a small community located in Wisconsin, within Winnebago County. The total population is 167. It ranks as the 713th most populous out of 808 Census-designated places in Wisconsin.
Age Demographics
The median age in Eureka is 55.2 years. This is 37% higher than the state median of 40.2 years.
Economy, Income & Housing
The median household income in Eureka is $54,500. This is 30% lower than the state median of $77,485. It is also 32% lower than the national median of $80,734. The poverty rate stands at 1.2%. This is 88% lower than the state poverty rate of 10.5%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The survey records no unemployed residents in Eureka, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $164,500. Housing costs are 38% lower than the state median of $266,500. The home-value-to-income ratio is 3.0x. 84.6% of occupied housing units are owner-occupied. This homeownership rate is 25% higher than the state average of 67.8%.
Race & Ethnicity
Eureka has a predominantly White (non-Hispanic) population, comprising 94.0% of all residents. Black or African American residents account for 6.0%.
Education
14.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 56% 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 92.3%.
Data Sources & Methodology
All demographic data for Eureka, 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.
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Frequently Asked Questions
What is the population of Eureka, Wisconsin?
Eureka, Wisconsin has a population of 167 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Eureka, WI?
The median household income in Eureka is $54,500, which is 32% lower than the national median of $80,734.
What is the poverty rate in Eureka, WI?
The poverty rate in Eureka is 1.2%. This means approximately 2 residents live below the federal poverty line.
What is the racial makeup of Eureka, Wisconsin?
Eureka's population is 94.0% White, 6.0% Black, 0.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Eureka, WI?
The median home value in Eureka is $164,500. The home-value-to-income ratio is 3.0x.
How educated is Eureka, Wisconsin?
14.6% of adults (25+) in Eureka hold a bachelor's degree or higher, and 9.2% hold a graduate or professional degree.