Census tract · St. Croix County
Census Tract 1206.01, St. Croix County, Wisconsin
Census Tract 1206.01, GEOID 55109120601, in St. Croix County, Wisconsin, mostly within Erin Prairie (town) (52% of its census blocks). 3,146 residents in the ACS 2020-2024 5-year estimates (±367); the 2020 Census counted 2,866.
Residents, 2020-2024
3,146
±367 (90% margin)
2020 Census count: 2,866
Median household income
$127,500
±$14,320 (90% margin)
St. Croix County: $103,046
Median home value
$395,600
±$39,172 (90% margin)
St. Croix County: $377,700
Median gross rent
$1,697
±$186 (90% margin)
St. Croix County: $1,271
Where is Census Tract 1206.01?
Census Tract 1206.01 is one of 18 census tracts in St. Croix County, Wisconsin. It covers 50.88 square miles of land, 56 residents per square mile in 2020. Its GEOID, 55109120601, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Erin Prairie (town) | 52% |
| Richmond (town), St. Croix County | 47% |
| Cylon (town) | 1% |
6 census tracts border Census Tract 1206.01: Tract 1204.02 ($113,337), Tract 1205.01 ($77,642), Tract 1205.02 ($100,943), Tract 1206.02 ($89,786), Tract 1208.02 ($90,000) and Tract 1210 ($110,536). 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 1206.01?
The 2020-2024 American Community Survey puts Census Tract 1206.01's population at 3,146 (±367) in 966 households; the 2020 Census counted 2,866 residents and 990 housing units.
| Measure | Tract 1206.01 | Erin Prairie (town) |
|---|---|---|
| Total population | 3,146 ±367 | 718 |
| Households | 966 ±115 | 245 |
| Average household size | 3.26 ±0.24 | 2.93 |
| Housing units | 978 ±119 | 249 |
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 1206.01?
The median resident of Census Tract 1206.01 is 35.0 years old; 29.1% are under 18 and 6.7% are 65 or older. The largest group is non-Hispanic white residents at 96.7%, then Hispanic or Latino residents (of any race) at 2.3%.
| Measure | Tract 1206.01 | Erin Prairie (town) |
|---|---|---|
| Median age | 35.0 ±2.1 | 35.7 |
| Under 18 years | 29.1% ±3.2 pts | 24.9% |
| 65 years and over | 6.7% ±1.3 pts | 11.0% |
| Hispanic or Latino (any race) | 2.3% ±1.8 pts | 1.0% |
| White alone, not Hispanic | 96.7% ±2.1 pts | 96.1% |
| Black or African American alone, not Hispanic | 0.3% ±0.6 pts | 1.7% |
| Asian alone, not Hispanic | 0.0% ±0.7 pts | 0.0% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.7 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.7 pts | 0.0% |
| Two or more races, not Hispanic | 0.6% ±0.5 pts | 1.1% |
| Some other race alone, not Hispanic | 0.0% ±0.7 pts | 0.1% |
| Born outside the United States | 0.3% ±0.4 pts | 0.4% |
| Speak a language other than English at home (age 5+) | 0.7% ±0.8 pts | 0.0% |
| Civilian veterans (age 18+) | 7.0% ±3.8 pts | 8.0% |
| With a disability | 6.8% ±3.2 pts | 7.5% |
| No health insurance coverage | 2.5% ±1.4 pts | 1.5% |
| High school graduate or higher (age 25+) | 97.5% ±1.7 pts | 98.2% |
| Bachelor's degree or higher (age 25+) | 25.6% ±6.5 pts | 34.7% |
| Graduate or professional degree (age 25+) | 7.6% ±3.1 pts | 15.2% |
| Lived in the same house a year earlier | 95.9% ±2.3 pts | 88.5% |
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 1206.01 earn?
Half of the 966 households in Census Tract 1206.01 earn less than $127,500 a year (±$14,320), against $103,046 across St. Croix County: 3rd highest of the county's 18 tracts with a reliable estimate.
| Measure | Tract 1206.01 | Erin Prairie (town) |
|---|---|---|
| Median household income | $127,500 ±$14,320 | $99,306 |
| Mean household income | $137,541 ±$12,925 | $140,631 |
| Per capita income | $43,852 ±$4,477 | $47,568 |
| People below the poverty line | 2.3% ±1.6 pts | 4.3% |
| Children under 18 below the poverty line | 1.0% ±1.5 pts | 0.0% |
| Households receiving SNAP | 2.9% ±2.4 pts | 3.7% |
| Households with a computer | 98.2% ±1.6 pts | 95.5% |
| Households with a broadband subscription | 94.0% ±3.9 pts | 90.2% |
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 1206.01?
Owners occupy 85.9% of Census Tract 1206.01's occupied homes and renters 14.1%. The median owner-occupied home is valued at $395,600 by its owner (±$39,172). The median renter pays $1,697 a month including utilities.
| Measure | Tract 1206.01 | Erin Prairie (town) |
|---|---|---|
| Median home value (owner-occupied) | $395,600 ±$39,172 | $387,300 |
| Median gross rent | $1,697 ±$186 | $1,431 |
| Renters paying 35% or more of income on rent | 24.6% ±31.6 pts | 23.8% |
| Median monthly owner costs, with a mortgage | $2,261 ±$110 | $2,221 |
| Owner-occupied homes | 85.9% ±7.5 pts | 89.0% |
| Renter-occupied homes | 14.1% ±7.5 pts | 11.0% |
| Housing units | 978 ±119 | 249 |
| Single-family detached homes | 96.7% ±2.7 pts | 98.8% |
| Mobile homes | 0.3% ±0.6 pts | 1.2% |
| Built 2020 or later | 1.6% ±1.8 pts | 0.0% |
| Built 2010 to 2019 | 23.1% ±8.1 pts | 8.0% |
| Built 1939 or earlier | 10.1% ±4.4 pts | 20.5% |
| Households with no vehicle | 2.0% ±2.1 pts | 2.9% |
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 1206.01 get to work?
67.9% of Census Tract 1206.01's workers drive alone and 23.9% work from home. The average trip to work takes 29.9 minutes.
| Measure | Tract 1206.01 | Erin Prairie (town) |
|---|---|---|
| In the labor force (age 16+) | 78.3% ±4.1 pts | 65.5% |
| Unemployment rate | 3.9% ±3.0 pts | 3.5% |
| Drove alone to work | 67.9% ±7.0 pts | 80.3% |
| Carpooled | 6.0% ±4.2 pts | 2.8% |
| Public transportation | 0.3% ±0.6 pts | 0.0% |
| Walked | 0.3% ±0.4 pts | 1.7% |
| Worked from home | 23.9% ±7.3 pts | 12.7% |
| Mean travel time to work | 29.9 min ±2.7 | 26.8 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 1206.01 compare with the other tracts in St. Croix County?
Among St. Croix County's tracts with a reliable estimate, Census Tract 1206.01 ranks as shown below (1 = highest).
| Measure | In St. Croix County |
|---|---|
| Population | 17th of 18 |
| Residents per square mile | 16th of 18 |
| Median household income | 3rd of 18 |
| Per capita income | 10th of 18 |
| Median home value | 8th of 18 |
| Median gross rent | 2nd of 16 |
| Bachelor's degree or higher | 15th of 18 |
| Median age | 17th of 18 |
| Owner-occupied share | 8th of 18 |
The tracts next to it on St. Croix County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 1209.06 | 1st | $187,750±$37,174 |
| Tract 1202.02 | 2nd | $145,728±$15,593 · within the margin of this tract |
| Tract 1206.01 | 3rd | $127,500±$14,320 |
| Tract 1209.04 | 4th | $126,500±$15,123 · within the margin of this tract |
| Tract 1203 | 5th | $126,250±$21,771 · within the margin of this tract |
| Tract 1204.01 | 6th | $115,781±$32,762 · 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 1206.01?
4 of the 18 figures for Census Tract 1206.01 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