St. Croix County: Demographics & People
About 96,033 people live in St. Croix County. Median age 40.4 years. (2.1y older than Wisconsin). Population is 3% Hispanic or Latino and 1% Asian. County is gaining 754 residents per year (2022-2023). County health: 34% adult obesity, 13% smoke.
- 66 dependents per 100 working-age (youth + seniors / 18-64) (vs Wisconsin 66).
Population & Trend
Current population 96,033; figures track the most recent Census ACS 5-year estimates.
| Population | 96,033 people (vs Wisconsin 25,785) |
|---|---|
| Total Town Population | 44,089 people |
Age Distribution
Median age 40.4y is 1.5 years older than the U.S. median (38.9y).
| Age Summary · Total Pop | 96,033 |
|---|---|
| Age Summary · Under 18 | 22,839 |
| Age Summary · 18 To 34 | 17,898.0× |
| Age Summary · 35 To 64 | 39,934.0× |
| Age Summary · 65 Plus | 15,362 |
| Age Summary · Pct Under 18 | 23.8% |
| Age Summary · Pct 18 To 34 | 18.6% |
| Age Summary · Pct 35 To 64 | 41.6% |
| Median age | 40.4 years (vs Wisconsin 38.3y) |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28
Race, Ethnicity & Diversity
Of 96,033 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| Census Demographics · Total Population | 96,033 people |
|---|---|
| White residents | 88,464 |
| Black residents | 662 |
| Asian residents | 1,067 |
| Census Demographics · Aian | 60 |
| Census Demographics · Nhpi | 23 |
| Census Demographics · Other Race | 1,185 |
| Census Demographics · Two Or More Races | 4,572 |
| Diversity Index | 14.9% |
| Asian population | 1.1% (vs Wisconsin 3.1%) |
| Black population | 0.7% (vs Wisconsin 2.7%) |
| Hispanic or Latino population | 3.1% (vs Wisconsin 6.6%) |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS).
| Census Citizenship · Total | 96,033 |
|---|---|
| Census Citizenship · Native | 93,800 |
| Residents born in this state | 42,039 |
| Residents born in another state | 51,117 |
| Census Citizenship · Foreign Born | 2,334 |
| Census Citizenship · Naturalized | 3,444 |
| Census Citizenship · Non Citizen | 644 |
| Foreign-born residents | 2.4% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28
Residential Stability & Migration
How long residents have lived here and where they came from. The surrounding county is gaining 754 residents per year on net (IRS migration data).
| Migration · People moving in (annual) | 96,814 |
|---|---|
| Migration · People moving out (annual) | 96,060 |
| Migration · Net migration (in − out) | 754 |
| Migration · Population growing | Yes |
| Migration · Year | 2022-2023 |
Sources: IRS SOI Migration 2022-2023
Disability
Census ACS measures self-reported functional limitations — vision, hearing, mobility, cognitive, self-care, or independent-living. The U.S. baseline disability rate is about 12–13%; rates trend higher with median age.
| Census Disability · Total Pop | 95,339 |
|---|---|
| With Disability | 9,494 |
| Pct With Disability | 10.0% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28
Group Quarters
Group quarters are non-household living arrangements counted by the Census — college dormitories, nursing homes, military barracks, group homes, correctional facilities, and similar institutional or shared housing. 0 residents live in group quarters.
| Census Group Quarters · Total | 931 |
|---|
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28
Other
| Census Mobility · Total | 95,232 |
|---|---|
| Census Mobility · Same House | 87,121 |
| Census Mobility · Same County | 3,629 |
| Census Mobility · Diff County Same State | 2,112 |
| Census Mobility · Diff State | 2,150 |
| Census Mobility · From Abroad | 220 |
| Census Mobility · Moved Total | 8,111 |
| Census Mobility · Pct Moved In Year | 8.5% |
| Pct White | 92.1% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-28