Fond du Lac Population

1860–2026

44,532

2026 projection

0.3% since 2020 (decrease)

010K20K30K40K50K186018801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Fond du Lac. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202644,532-90.02%
202544,541-1350.30%
202444,676+1590.36%
202344,517+530.12%
202244,464-1400.31%
202144,604-740.17%
202044,678+1490.33%
201944,529+4481.02%
201844,081+3320.76%
201743,749-370.08%

Showing 10 of 32 years.

The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.

Growth since 2020, compared

Fond du Lac has a population change lower than Fond du Lac County, Wisconsin, and the U.S.

  • United States+3.1%
  • Wisconsin+1.3%
  • Fond du Lac County+0.5%
  • Fond du Lac−0.4%

Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.

Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.

Fond du Lac Demographics

36.9median age

Median age

Female38.1 yrs
Male36.3 yrs

Adults

34,490
7,282 seniors (65+) · 21% of adults27,208 other adults

Sex

Female 51.2% · 22,782Male 48.8% · 21,712

Population by age

MaleFemale85+ years, male: 20385+ years, female: 86480–84 years, male: 27680–84 years, female: 58675–79 years, male: 72575–79 years, female: 85670–74 years, male: 97770–74 years, female: 1,04565–69 years, male: 82465–69 years, female: 92660–64 years, male: 1,12860–64 years, female: 1,45155–59 years, male: 1,27755–59 years, female: 1,15350–54 years, male: 1,37650–54 years, female: 1,16945–49 years, male: 1,31645–49 years, female: 1,28540–44 years, male: 1,49140–44 years, female: 1,65135–39 years, male: 1,64135–39 years, female: 1,42830–34 years, male: 1,46430–34 years, female: 1,68125–29 years, male: 1,65925–29 years, female: 1,82620–24 years, male: 1,58320–24 years, female: 1,37015–19 years, male: 1,61215–19 years, female: 1,67610–14 years, male: 1,57210–14 years, female: 1,5135–9 years, male: 1,1795–9 years, female: 1,2480–4 years, male: 1,4090–4 years, female: 1,05485+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45005001K1K1.5K1.5K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 445 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Fond du Lac Income

$62,260median household income

Median household income

$62,260

Half of households earn more, half earn less

Median earnings

$47,054

Typical yearly pay for a worker 25 or older.

Poverty rate

12.4%

About 1 in 8 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Fond du Lac Marital Status

43% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married43%45%42%
Never married37%39%34%
Divorced12%12%13%
Widowed6%2%10%
Separated2%2%<1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

14 sources

Population

American Community Survey, 2024 5-year

Additional sources