Population
104,669
2025
+0.5% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
Fond du Lac County, WI: population growth, jobs and income
Fond du Lac County lost 52 residents between 2024 and 2025 (−0.0%).
Fond du Lac County had an estimated 104,669 residents in 2025, up 0.5% (510 more people) since 2020. That is slower than Wisconsin as a whole (+1.3%), and the 48th fastest growth of 72 counties in Wisconsin.
Data as of 2025 · updated
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In the Fond du Lac County report
One-time $99 PDF: everything on this page for Fond du Lac County, ranked against Wisconsin and the U.S., plus these figures that are not on the free page:
- Median gross rent$960/mo2020–24
- Vacant homes, incl. seasonal and second homes6.2%2020–24
- New homes permitted, last 12 months2122025-10/2026-09
- 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 Summary, headline numbers and ranks (free preview)
- 2 Ranks and the neighbouring-county table
- 3 Migration, with IRS mover and income flows
- 4 Rent, vacant homes, permits and employers
- 5 Every source and the methods
Headline numbers
Net domestic migration
−193
2025
−1.8 per 1,000 residents
−396 in total, 2021–2025
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. People moving in from other U.S. counties minus people moving out.
Unemployment rate
3.0%
2025
+0.2 pts since 2019
Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics, 2025. Annual average unemployment rate.
New homes permitted
190
2025
−19.1% since 2021
1.8 per 1,000 residents
Source: U.S. Census Bureau, Building Permits Survey, 2025. Housing units authorized by building permits in the year.
Median household income
$74,275
2020–24
+15.8% since 2016–20
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–24. American Community Survey 5-year estimate.
Private-sector employment
42,508
2023
−4.2% since 2018
Source: U.S. Census Bureau, County Business Patterns, 2023. Paid employees of private employers in mid-March (County Business Patterns).
What the numbers say
Net domestic migration was negative in 2025: 193 more people moved out to other U.S. counties than moved in.
Private employers had 42,508 paid employees in mid-March 2023, −4.2% since 2018 (County Business Patterns).
Unemployment averaged 3.0% in 2025, 0.2 points higher than in 2019 (before the pandemic).
Builders were authorized to start 190 new homes in 2025, or 1.8 per 1,000 residents.
Median household income was $74,275 in the 2020–24 American Community Survey, +15.8% since 2016–20.
Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 1,711th.
Part of the Fond du Lac, WI metro area.
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Fond du Lac County population by year
| Year | Population | Change |
|---|---|---|
| 2025 | 104,669 | −52 |
| 2024 | 104,721 | +372 |
| 2023 | 104,349 | +246 |
| 2022 | 104,103 | −25 |
| 2021 | 104,128 | −31 |
| 2020 | 104,159 | – |
Census Bureau population estimates, July 1 of each year.
What drove the change in Fond du Lac County
Fond du Lac County grew by 510 people since 2020 even though 396 more residents moved to other U.S. counties than came from them: deaths outnumbered births by 676, and net international migration added 1,578.
| Component | 2025 | 2020–25 | Share |
|---|---|---|---|
| Natural changebirths minus deaths | −49 | −676 | |
| International migrationfrom and to other countries | +187 | +1,578 | |
| Domestic migrationfrom and to other U.S. counties | −193 | −396 | |
| Census adjustmentbalancing residual | +3 | +4 | |
| Total change | −52 | +510 |
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
| Measure | In Wisconsin | Among U.S. counties |
|---|---|---|
| Population growth | 48th of 72 | 1,711th of 3,107 |
| Net domestic migration per 1,000 residents | 62nd of 72 | 2,207th of 3,108 |
| Private-sector job growth | 59th of 72 | 2,393rd of 3,092 |
| Median household income | 34th of 72 | 882nd of 3,107 |
| Lowest unemployment rate | 24th of 72 | 449th of 3,108 |
| New homes permitted per 1,000 residents | 70th of 72 | 1,628th of 3,005 |
1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.
Get the county report — $99
The County Growth and Demographics Report for Fond du Lac 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, Fond du Lac County's population change (+0.5%) was ahead of 2 of its 6 neighbouring counties and behind 4.
4 of its 6 neighbouring counties had a higher median household income than Fond du Lac County's $74,275 (2020–24).
| County | Population2025 | Population change2020–25 | Net domestic migration per 1,000 residents2025 | Homes permitted per 1,000 residents2025 | Median household income2020–24 |
|---|---|---|---|---|---|
| Fond du Lac County, WI This county | 104,669 | +0.5% | −1.8 | 1.8 | $74,275 |
| Winnebago County, WI | 174,218 | +1.4% | 4.0 | 3.9 | $74,925 |
| Dodge County, WI | 89,097 | −0.3% | 4.1 | 4.0 | $75,929 |
| Calumet County, WI | 53,982 | +2.9% | 2.2 | 4.5 | $88,810 |
| Washington County, WI | 139,238 | +1.8% | 3.4 | 2.9 | $96,359 |
| Green Lake County, WI | 19,305 | +1.5% | 2.1 | 5.5 | $68,196 |
| Sheboygan County, WI | 118,047 | +0.0% | −1.1 | 3.1 | $73,094 |
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.
Questions
Is Fond du Lac County growing?
Yes. Its population grew 0.5% between 2020 and 2025, about 510 more people (Census Bureau population estimates). Wisconsin as a whole changed +1.3% over the same years. That ranks 48th of 72 counties in Wisconsin for population growth.
How many people moved to Fond du Lac County?
On net, none in 2025: about 193 more people moved out to other U.S. counties than moved in (Census Bureau net domestic migration estimate).
What is the unemployment rate in Fond du Lac County?
It averaged 3.0% in 2025 (BLS Local Area Unemployment Statistics, annual average).
What is the population of Fond du Lac County?
About 104,669 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.
How many jobs are in Fond du Lac County?
Private employers there had 42,508 paid employees in mid-March 2023, −4.2% 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.
Fond du Lac County data alerts
Email me when Fond du Lac County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.
Sources and method
- U.S. Census Bureau, Population Estimates Program (Vintage 2025)
- U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics
- U.S. Census Bureau, Building Permits Survey
- U.S. Census Bureau, American Community Survey 5-year estimates
- U.S. Census Bureau, County Business Patterns
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.