Wausau Population

1860–2026

40,242

2026 projection

0.6% since 2020 (increase)

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 Wausau. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202640,242+540.13%
202540,188-410.10%
202440,229+1450.36%
202340,084+2470.62%
202239,837+980.25%
202139,739-2550.64%
202039,994-60.01%
201940,000+900.23%
201839,910+220.06%
201739,888+1320.33%

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

Wausau is growing slower than Marathon County, Wisconsin, and the U.S.

  • United States+3.1%
  • Wisconsin+1.3%
  • Marathon County+1.0%
  • Wausau+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.

Wausau Demographics

38.2median age

Median age

Female39.2 yrs
Male37 yrs

Adults

31,210
7,741 seniors (65+) · 25% of adults23,469 other adults

Sex

Female 51.4% · 20,569Male 48.6% · 19,427

Population by age

MaleFemale85+ years, male: 22685+ years, female: 89480–84 years, male: 35780–84 years, female: 50575–79 years, male: 48475–79 years, female: 57170–74 years, male: 82970–74 years, female: 1,07465–69 years, male: 1,43965–69 years, female: 1,36260–64 years, male: 1,28560–64 years, female: 1,37655–59 years, male: 87355–59 years, female: 1,06550–54 years, male: 1,11450–54 years, female: 90945–49 years, male: 97445–49 years, female: 88840–44 years, male: 1,20240–44 years, female: 1,36135–39 years, male: 1,47535–39 years, female: 1,59330–34 years, male: 1,77430–34 years, female: 1,27425–29 years, male: 1,59025–29 years, female: 1,54120–24 years, male: 1,33220–24 years, female: 1,26715–19 years, male: 97615–19 years, female: 1,07710–14 years, male: 1,33810–14 years, female: 1,3375–9 years, male: 1,1285–9 years, female: 1,0040–4 years, male: 1,0310–4 years, female: 1,47185+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 400 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

Wausau Income

$64,389median household income

Median household income

$64,389

Half of households earn more, half earn less

Median earnings

$45,337

Typical yearly pay for a worker 25 or older.

Poverty rate

14.6%

About 1 in 7 residents

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

Wausau Marital Status

42% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married42%43%41%
Never married38%43%33%
Divorced13%10%15%
Widowed6%3%10%
Separated1%1%2%

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

Sources

14 sources

Population

American Community Survey, 2024 5-year

Additional sources