Census tract · Eau Claire County
Census Tract 15, Eau Claire County, Wisconsin
Census Tract 15, GEOID 55035001500, in Eau Claire County, Wisconsin, mostly within Union (town), Eau Claire County (72% of its census blocks). 3,937 residents in the ACS 2020-2024 5-year estimates (±276); the 2020 Census counted 3,859.
Residents, 2020-2024
3,937
±276 (90% margin)
2020 Census count: 3,859
Median household income
$84,601
±$4,864 (90% margin)
Eau Claire County: $74,546
Median home value
$306,000
±$26,229 (90% margin)
Eau Claire County: $261,000
Median gross rent
$1,204
±$124 (90% margin)
Eau Claire County: $1,064
Where is Census Tract 15?
Census Tract 15 is one of 22 census tracts in Eau Claire County, Wisconsin. It covers 27.70 square miles of land, 139 residents per square mile in 2020. Its GEOID, 55035001500, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Union (town), Eau Claire County | 72% |
| Eau Claire | 28% |
8 census tracts border Census Tract 15: Tract 104 in Chippewa County ($100,486), Tract 9704 in Dunn County ($93,267), Tract 5.01 ($91,923), Tract 6 ($55,402), Tract 13 ($85,343), Tract 14.01 ($76,354), Tract 14.02 ($66,212) and Tract 16 ($112,795). The figure in brackets is each tract's median household income.
Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.
Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files
How many people live in Census Tract 15?
The 2020-2024 American Community Survey puts Census Tract 15's population at 3,937 (±276) in 1,685 households; the 2020 Census counted 3,859 residents and 1,650 housing units.
| Measure | Tract 15 | Union (town), Eau Claire County |
|---|---|---|
| Total population | 3,937 ±276 | 2,624 |
| Households | 1,685 ±134 | 1,002 |
| Average household size | 2.32 ±0.15 | 2.59 |
| Housing units | 1,709 ±133 | 1,026 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Census Tract 15?
The median resident of Census Tract 15 is 38.5 years old; 18.3% are under 18 and 16.2% are 65 or older. The largest group is non-Hispanic white residents at 91.4%, then non-Hispanic Asian residents at 3.3%.
| Measure | Tract 15 | Union (town), Eau Claire County |
|---|---|---|
| Median age | 38.5 ±2.7 | 44.3 |
| Under 18 years | 18.3% ±3.4 pts | 20.1% |
| 65 years and over | 16.2% ±2.8 pts | 17.3% |
| Hispanic or Latino (any race) | 1.8% ±1.3 pts | 1.0% |
| White alone, not Hispanic | 91.4% ±3.9 pts | 95.1% |
| Black or African American alone, not Hispanic | 0.8% ±1.1 pts | 0.2% |
| Asian alone, not Hispanic | 3.3% ±3.2 pts | 2.0% |
| American Indian and Alaska Native alone, not Hispanic | 0.1% ±0.3 pts | 0.3% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.6 pts | 0.0% |
| Two or more races, not Hispanic | 2.6% ±1.6 pts | 1.5% |
| Some other race alone, not Hispanic | 0.0% ±0.6 pts | 0.0% |
| Born outside the United States | 0.5% ±0.5 pts | 0.5% |
| Speak a language other than English at home (age 5+) | 5.3% ±3.6 pts | 2.4% |
| Civilian veterans (age 18+) | 6.5% ±1.8 pts | 7.4% |
| With a disability | 12.1% ±3.6 pts | 12.0% |
| No health insurance coverage | 2.3% ±1.5 pts | 4.0% |
| High school graduate or higher (age 25+) | 96.2% ±2.2 pts | 95.9% |
| Bachelor's degree or higher (age 25+) | 36.3% ±6.8 pts | 35.3% |
| Graduate or professional degree (age 25+) | 9.5% ±3.3 pts | 11.3% |
| Lived in the same house a year earlier | 85.8% ±5.0 pts | 94.1% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Census Tract 15 earn?
Half of the 1,685 households in Census Tract 15 earn less than $84,601 a year (±$4,864), against $74,546 across Eau Claire County: 11th highest of the county's 22 tracts with a reliable estimate. 9.4% of residents live below the poverty line.
| Measure | Tract 15 | Union (town), Eau Claire County |
|---|---|---|
| Median household income | $84,601 ±$4,864 | $95,217 |
| Mean household income | $100,152 ±$10,328 | $118,691 |
| Per capita income | $43,430 ±$4,568 | $46,287 |
| People below the poverty line | 9.4% ±3.7 pts | 5.4% |
| Children under 18 below the poverty line | 2.5% ±3.8 pts | 0.0% |
| Households receiving SNAP | 7.0% ±3.4 pts | 10.1% |
| Households with a computer | 99.1% ±1.0 pts | 97.5% |
| Households with a broadband subscription | 94.2% ±3.5 pts | 94.2% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Census Tract 15?
Owners occupy 55.8% of Census Tract 15's occupied homes and renters 44.2%. The median owner-occupied home is valued at $306,000 by its owner (±$26,229). The median renter pays $1,204 a month including utilities, and 24.3% of renters pay 35% or more of their income on rent.
| Measure | Tract 15 | Union (town), Eau Claire County |
|---|---|---|
| Median home value (owner-occupied) | $306,000 ±$26,229 | $307,000 |
| Median gross rent | $1,204 ±$124 | $1,318 |
| Renters paying 35% or more of income on rent | 24.3% ±11.3 pts | 33.3% |
| Median monthly owner costs, with a mortgage | $1,524 ±$162 | $1,494 |
| Owner-occupied homes | 55.8% ±6.4 pts | 86.3% |
| Renter-occupied homes | 44.2% ±6.4 pts | 13.7% |
| Housing units | 1,709 ±133 | 1,026 |
| Single-family detached homes | 51.9% ±5.5 pts | 91.8% |
| Mobile homes | 0.7% ±0.7 pts | 1.2% |
| Built 2020 or later | 6.0% ±2.6 pts | 2.3% |
| Built 2010 to 2019 | 21.5% ±5.1 pts | 6.0% |
| Built 1939 or earlier | 6.0% ±2.9 pts | 12.1% |
| Households with no vehicle | 2.1% ±1.6 pts | 1.3% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Census Tract 15 get to work?
80.1% of Census Tract 15's workers drive alone and 13.8% work from home. The average trip to work takes 15.7 minutes.
| Measure | Tract 15 | Union (town), Eau Claire County |
|---|---|---|
| In the labor force (age 16+) | 69.8% ±4.8 pts | 67.3% |
| Unemployment rate | 1.6% ±1.1 pts | 1.8% |
| Drove alone to work | 80.1% ±6.0 pts | 79.4% |
| Carpooled | 2.5% ±1.6 pts | 4.8% |
| Public transportation | 0.2% ±0.4 pts | 0.3% |
| Walked | 1.2% ±1.4 pts | 0.6% |
| Worked from home | 13.8% ±5.6 pts | 13.6% |
| Mean travel time to work | 15.7 min ±1.2 | 16.8 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
How does Census Tract 15 compare with the other tracts in Eau Claire County?
Among Eau Claire County's tracts with a reliable estimate, Census Tract 15 ranks as shown below (1 = highest).
| Measure | In Eau Claire County |
|---|---|
| Population | 17th of 22 |
| Residents per square mile | 18th of 22 |
| Median household income | 11th of 22 |
| Per capita income | 9th of 22 |
| Median home value | 7th of 21 |
| Median gross rent | 6th of 21 |
| Poverty rate | 11th of 19 |
| Bachelor's degree or higher | 13th of 22 |
| Median age | 10th of 22 |
| Owner-occupied share | 16th of 21 |
The tracts next to it on Eau Claire County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 4.02 | 8th | $88,220±$8,780 · within the margin of this tract |
| Tract 3.02 | 9th | $87,175±$15,124 · within the margin of this tract |
| Tract 13 | 10th | $85,343±$9,987 · within the margin of this tract |
| Tract 15 | 11th | $84,601±$4,864 |
| Tract 8.02 | 12th | $83,620±$13,672 · within the margin of this tract |
| Tract 14.01 | 13th | $76,354±$24,237 · within the margin of this tract |
| Tract 7 | 14th | $72,102±$11,723 · within the margin of this tract |
"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed
How reliable are the figures for Census Tract 15?
3 of the 18 figures for Census Tract 15 on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · Check it at data.census.gov
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections