• county
  • FIPS 55139
  • Largest town: Oshkosh

Winnebago County, Wisconsin

Winnebago County had 173,307 residents in the Census Vintage 2024 estimate, on 434.7 square miles of land. It ranks 7th of 72 in Wisconsin by population and 62nd by land area.

Population
173,307
#7 of 72 in Wisconsin · #402 in US
Area
434.7 sq mi
#62 of 72 in Wisconsin · #2,332 in US
Density
399 / sq mi
#8 of 72 in Wisconsin · #345 in US
Median household income
$70,720
#35 of 72 in Wisconsin · #954 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Winnebago County within Wisconsin. Pin: Madison.

Measure from here

Tools and pages that start from Winnebago County

Winnebago County population, land area and income

Winnebago County had 173,307 residents in the Census Vintage 2024 estimate, on 434.7 square miles of land. It ranks 7th of 72 in Wisconsin by population and 62nd by land area. That works out to 398.7 people per square mile, 4.1 times the US average of 96.3, and in the top quarter nationally.

The median county-equivalent in Wisconsin has 41,821 residents, so Winnebago County is 4.1 times that size.

Its SAIPE 2023 median household income of $70,720 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

173,307

3144th1st

402nd of 3,144 (US)

Land area

435 sq mi

3144th1st

2332nd of 3,144 (US)

Density

398.7 / sq mi

3144th1st

345th of 3,144 (US)

Median household income

$70,720

3143rd1st

954th of 3,143 (US)

Rank within Wisconsin (72)

Population

173,307

72nd1st

7th of 72 (WI)

Land area

435 sq mi

72nd1st

62nd of 72 (WI)

Density

398.7 / sq mi

72nd1st

8th of 72 (WI)

Median household income

$70,720

72nd1st

35th of 72 (WI)

How Winnebago County's population changed since 2020

Winnebago County gained 1,511 residents between the July 2020 and July 2024 estimates, a rise of 0.9%. That ranks 41st of 72 in Wisconsin for growth. The median Wisconsin county changed by +1.0%, and the state as a whole by +1.1%.

Since the April 2020 estimates base, Winnebago County recorded 7,019 births and 7,383 deaths, a natural change of -364. Net international migration added +1,416 and net domestic migration, people moving to or from other US counties, came to +534. The largest single component was international migration, which added 1,416 people.

171.8k2020170.6k2021171.0k2022172.1k2023173.3k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
7,019
Deaths
7,383
Net international migration
+1,416
Net domestic migration
+534
Change, July 2023 to July 2024
+1,202

Where Winnebago County is

The Census internal point of Winnebago County is at 44.085700, -88.668100. It sits in UTM zone 16N. The map shades Wisconsin's 72 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Winnebago County outlined. Dots are towns of 1,000+ people with residents in it.

Barron County: +0.2%Green County: +0.4%Dunn County: +1.5%Jefferson County: +0.0%Lincoln County: +0.1%Rusk County: -0.1%Fond du Lac County: +0.1%Marquette County: +1.0%Outagamie County: +2.3%Waupaca County: -1.2%Oneida County: +0.8%Eau Claire County: +2.8%Washington County: +1.4%Portage County: +2.3%Menominee County: +0.7%Clark County: +0.5%Monroe County: +0.2%Milwaukee County: -1.5%Buffalo County: +1.1%Lafayette County: +4.2%Ozaukee County: +2.5%Rock County: +1.0%Sheboygan County: +0.2%Green Lake County: +1.8%Waukesha County: +2.3%Calumet County: +2.1%Dodge County: -0.8%Wood County: -0.3%Winnebago County: +0.9%Sawyer County: +4.0%Dane County: +4.6%Sauk County: +1.1%Pepin County: +2.9%Adams County: +3.2%Price County: +0.4%Taylor County: +1.1%Grant County: +0.7%Trempealeau County: -0.0%Vernon County: +2.1%Waushara County: +2.2%Iowa County: +1.0%Crawford County: -0.5%Kenosha County: -0.3%Shawano County: +1.1%Juneau County: -0.7%Jackson County: -0.3%Vilas County: +3.7%Bayfield County: +3.7%Chippewa County: +1.5%Iron County: +1.5%Racine County: +0.3%Door County: +1.3%Ashland County: +1.1%Kewaunee County: +0.9%Polk County: +1.8%Florence County: +2.4%Douglas County: -0.2%Forest County: +3.7%Columbia County: -0.7%Walworth County: +0.7%La Crosse County: +0.1%Manitowoc County: +0.1%Oconto County: +2.5%Langlade County: +0.4%Marathon County: +0.7%Washburn County: +2.2%Brown County: +1.8%Richland County: -0.9%Marinette County: +1.1%St. Croix County: +4.3%Pierce County: +2.7%Burnett County: +3.7%
Change 2020 to 2024
  1. < +0.1%
  2. < +0.7%
  3. < +1.3%
  4. < +2.3%
  5. ≥ +2.3%
no data

Orange pin: Winnebago County internal point. Dark pin: Madison.

Internal point

Decimal
44.085700, -88.668100
DMS
44°05'8.52"N 88°40'5.16"W
UTM
16N 366453.6E 4882744.1N
Geohash
dpbfy39cg
Plus code
86PH38PJ+7Q

Towns in Winnebago County

7 incorporated places of 1,000+ people have residents in Winnebago County, 136,852 people together, or 79% of the county. Each figure counts only the part of the town inside Winnebago County; towns marked "part" extend into another county. The largest is Oshkosh with 67,242.

  1. 01Oshkosh67,242
  2. 02Neenah27,502
  3. 03Fox Crossing19,362
  4. 04Menasha (part)15,187
  5. 05Omro3,644
  6. 06Winneconne2,504
  7. 07Appleton (part)1,411
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Winnebago County

The Census 2024 county adjacency file lists 6 neighbors for Winnebago County. The most populous is Outagamie County, WI, with 195,390 residents. Distances run between Census internal points in a straight line.

Distance to Madison and the nearest big city

Madison is 78.5 miles SSW of Winnebago County's internal point in a straight line. The nearest place of 100,000 or more is Green Bay, WI (population 106,311), 45.2 miles away. The nearest place of 10,000 or more is Oshkosh, WI (population 67,242), 6.8 miles away.

Winnebago County FIPS code

The FIPS code of Winnebago County is 55139: state code 55 for Wisconsin plus county code 139. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $70,720.

Questions people ask

What is the population of Winnebago County, Wisconsin?

The Census Vintage 2024 estimate for July 1, 2024 is 173,307. That is up 1,511 people (0.9%) from the July 2020 estimate of 171,796.

What is the FIPS code of Winnebago County?

55139. The first two digits (55) are Wisconsin; the last three (139) identify the county.

What is the largest town in Winnebago County?

Oshkosh, with 67,242 residents inside Winnebago County in 2024.

Which counties border Winnebago County?

6 county-equivalents border it in the Census 2024 adjacency file: Outagamie County, WI; Fond du Lac County, WI; Calumet County, WI; Waupaca County, WI; Waushara County, WI; Green Lake County, WI.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.