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St. Croix County, WI: population growth, jobs and income

St. Croix County gained 622 residents between 2024 and 2025 (+0.6%).

St. Croix County had an estimated 98,276 residents in 2025, up 4.7% (4,401 more people) since 2020. That is faster than Wisconsin as a whole (+1.3%), and the 4th fastest growth of 72 counties in Wisconsin.

Data as of 2025 · updated

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In the St. Croix County report

One-time $99 PDF: everything on this page for St. Croix County, ranked against Wisconsin and the U.S., plus these figures that are not on the free page:

  • Median gross rent$1,271/mo2020–24
  • Vacant homes, incl. seasonal and second homes3.7%2020–24
  • New homes permitted, last 12 months7112025-10/2026-09
  • Rent growth, 5 yearsIn the report
  • Permits in 5+ unit buildingsIn the report
  • IRS income moving in (net AGI)In the report
  • Neighbouring-county comparison tableIn the report

What's inside: 5 pages

  1. 1 Summary, headline numbers and ranks (free preview)
  2. 2 Ranks and the neighbouring-county table
  3. 3 Migration, with IRS mover and income flows
  4. 4 Rent, vacant homes, permits and employers
  5. 5 Every source and the methods
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Headline numbers

What the numbers say

Net domestic migration added 357 people in 2025: more people moved in from other U.S. counties than moved out.

Private employers had 31,951 paid employees in mid-March 2023, +1.9% since 2018 (County Business Patterns).

Unemployment averaged 3.7% in 2025, 0.6 points higher than in 2019 (before the pandemic).

Builders were authorized to start 460 new homes in 2025, or 4.7 per 1,000 residents.

Median household income was $103,046 in the 2020–24 American Community Survey, +21.3% since 2016–20.

Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 670th.

Part of the Minneapolis-St. Paul-Bloomington, MN-WI metro area.

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St. Croix County population by year

Resident population, July 1 estimate (Census Bureau)
YearPopulationChange
202598,276+622
202497,654+678
202396,976+860
202296,116+1,100
202195,016+1,141
202093,875–

Census Bureau population estimates, July 1 of each year.

What drove the change in St. Croix County

St. Croix County grew by 4,401 people since 2020; the largest part came from domestic migration (+2,949).

Components of population change, people (Census Bureau)
Component20252020–25Share
Natural changebirths minus deaths+214+1,039
International migrationfrom and to other countries+46+409
Domestic migrationfrom and to other U.S. counties+357+2,949
Census adjustmentbalancing residual+5+4
Total change+622+4,401

Census Bureau population estimates, components of change, each year July 1 to June 30. The components add up to the change in the estimate; the Census adjustment is the small balancing figure the Bureau publishes.

How it ranks

MeasureIn WisconsinAmong U.S. counties
Population growth4th of 72670th of 3,107
Net domestic migration per 1,000 residents31st of 721,275th of 3,108
Private-sector job growth26th of 721,611th of 3,092
Median household income2nd of 72144th of 3,107
Lowest unemployment rate46th of 721,245th of 3,108
New homes permitted per 1,000 residents28th of 72679th of 3,005

1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.

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The County Growth and Demographics Report for St. Croix County, WI as a PDF, from federal data: population and migration, housing and rents, permits, private employers and jobs, unemployment, ranks in the state and the country, and neighbouring counties, with a source next to every number. Pay once, no subscription.

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Neighbouring counties

Over 2020–25, St. Croix County's population change (+4.7%) was ahead of 4 of its 5 neighbouring counties and behind 1 (Washington County, MN).

Only Washington County, MN had a higher median household income (2020–24) among its 5 neighbouring counties; St. Croix County's was $103,046.

St. Croix County, WI and its 5 neighbouring counties: public federal figures
CountyPopulation2025Population change2020–25Net domestic migration per 1,000 residents2025Homes permitted per 1,000 residents2025Median household income2020–24
St. Croix County, WI This county98,276+4.7%3.64.7$103,046
Pierce County, WI43,519+3.1%4.18.4$92,109
Washington County, MN286,895+6.9%10.68.3$115,345
Polk County, WI45,803+1.7%3.75.3$77,219
Dunn County, WI46,223+1.7%3.92.1$74,824
Barron County, WI46,484−0.5%−2.23.3$65,933

Census Bureau population estimates and building permits, American Community Survey 5-year income. Rates per 1,000 residents. – means no figure, or a base too small for a change or rate (it would swing on a few people). A figure from another period shows its year and is left out of the comparison.

All 72 Wisconsin counties · Every state

Questions

Is St. Croix County growing?

Yes. Its population grew 4.7% between 2020 and 2025, about 4,401 more people (Census Bureau population estimates). Wisconsin as a whole changed +1.3% over the same years. That ranks 4th of 72 counties in Wisconsin for population growth.

How many people moved to St. Croix County?

On net, about 357 people in 2025: that many more moved in from other U.S. counties than moved out (Census Bureau net domestic migration estimate).

What is the unemployment rate in St. Croix County?

It averaged 3.7% in 2025 (BLS Local Area Unemployment Statistics, annual average).

What is the population of St. Croix County?

About 98,276 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.

How many jobs are in St. Croix County?

Private employers there had 31,951 paid employees in mid-March 2023, +1.9% since 2018 (Census Bureau County Business Patterns; government jobs and the self-employed are not counted).

What Beacon CRE covers in Wisconsin

Map, parcel and listing layers cover North and South Carolina only for now. This page and the other Wisconsin county pages carry the public federal growth figures.

St. Croix County data alerts

Email me when St. Croix County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.

We use your address only to email you when new data for St. Croix County is out: what changed, with a link to that county's report. No newsletter, no other sales emails. Delete it any time with the link in every email. We'll email you a link to confirm first; nothing starts until you click it. Privacy notice.

Sources and method

Each number shows its own period. Changes compare the latest period with five years earlier (or the earliest period available). Beacon CRE last refreshed these figures on 2026-11-05. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how we compute every number. More on every layer: data sources and licences.

Jobs outside North and South Carolina use County Business Patterns (paid private-sector employees in mid-March); wages and government jobs are not included.