Winnebago County Population

1840–2026

175.14K

2026 projection

1.9% since 2020 (increase)

050K100K150K200K1840186018801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual 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 Winnebago County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026175,142+9240.53%
2025174,218+9240.53%
2024173,294+1,1760.68%
2023172,118+1,1340.66%
2022170,984+3330.20%
2021170,651-1,1820.69%
2020171,833+320.02%
2019171,801+9900.58%
2018170,811+2430.14%
2017170,568+7590.45%

Showing 10 of 33 years.

Winnebago County Demographics

38.7median age

Median age

Female39.7 yrs
Male38 yrs

Adults

137,075
29,894 seniors (65+) · 22% of adults107,181 other adults

Sex

Female 49.2% · 84,530Male 50.8% · 87,239

Population by age

MaleFemale85+ years, male: 1,23085+ years, female: 2,49580–84 years, male: 1,77480–84 years, female: 1,95675–79 years, male: 2,20875–79 years, female: 2,63670–74 years, male: 4,00670–74 years, female: 4,40765–69 years, male: 4,48265–69 years, female: 4,70060–64 years, male: 5,99960–64 years, female: 5,58455–59 years, male: 5,53755–59 years, female: 5,69350–54 years, male: 5,30650–54 years, female: 4,88645–49 years, male: 5,27045–49 years, female: 4,66840–44 years, male: 5,25940–44 years, female: 4,91035–39 years, male: 6,33335–39 years, female: 5,34530–34 years, male: 6,06530–34 years, female: 5,15925–29 years, male: 6,25625–29 years, female: 5,42920–24 years, male: 7,32720–24 years, female: 7,23315–19 years, male: 5,54315–19 years, female: 5,63910–14 years, male: 5,01610–14 years, female: 4,8355–9 years, male: 5,0425–9 years, female: 4,7730–4 years, male: 4,5860–4 years, female: 4,18285+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–42K2K4K4K6K6K

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 1,718 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

Winnebago County Income

$74,925median household income

Median household income

$74,925

Half of households earn more, half earn less

Median earnings

$52,426

Typical yearly pay for a worker 25 or older.

Poverty rate

11.3%

About 1 in 9 residents

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

Winnebago County Marital Status

47% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married47%48%45%
Never married36%39%33%
Divorced11%10%13%
Widowed5%2%9%
Separated<1%<1%<1%

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

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year