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Winnebago County, Illinois

Winnebago County, Illinois · ZIP 61011, 61016, 61019

  • Census data · ACS 2019-2023
Browse the 27 townsFind my townSponsor a town here
  • 283,790 (2024 estimate)Population
  • 115,449Households
  • $64,363Median household income
  • $155,100Median home value
  • 27Towns with a page
  • 25ZIP codes

Winnebago County in numbersOfficial sources, refreshed yearly

Population, 2000 to 2020+2.5%
270k280k290k300k2000: 278,41820002010: 295,26620102020: 285,3502020278,418285,350
Population of Winnebago County at each census
CensusPopulation
2000278,418
2010295,266
2020285,350

As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.

Sources: Census 2000 Summary File 1: total population, county level, state 17, retrieved November 14, 2026; Census 2010 Summary File 1: total population, county level, state 17, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, county level, state 17, retrieved November 14, 2026.

Household income in Winnebago County
Under $50k39.2%
$50k to $100k31%
$100k to $150k15.7%
$150k to $200k7.8%
$200k and over6.2%

Median household income $64,363 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.

Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, county level, state 17, retrieved November 14, 2026.

Housing tenure in Winnebago County
Owner occupied
75,319 units
Renter occupied
40,130 units
Vacancy rate
7.6%

Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.

Source: American Community Survey 5-year data profile 2019–2023, county level, state 17, retrieved November 14, 2026.

Jobs by sector in Winnebago County2023
Manufacturing24,405
Health care and social assistance20,106
Retail trade13,950
Accommodation and food services11,570
Transportation and warehousing8,114
Administrative and support and waste management and remediation services7,302
Other services (except public administration)6,289
Wholesale trade5,187

117,137 employees in 6,286 establishments with payroll in 2023, all sectors; employers themselves are not named in the source. County Business Patterns counts are published with noise.

Source: County Business Patterns 2023: employment by sector, county level, state 17, retrieved November 14, 2026.

Winnebago County compared with its state
Winnebago County compared with its state, American Community Survey 2019-2023
MeasureWinnebago CountyIllinois
Population283,28912,692,653
Median household income$64,363$81,702
Median age39.738.9
Median home value$155,100$250,500
Bachelor’s degree or higher24.6%37.2%
Foreign-born residents8.7%14.4%
Owner-occupied homes65.2%66.8%
Mean commute to work22.9 minutes28.1 minutes

Source: American Community Survey 5-year data profile 2019–2023, county level, state 17, retrieved November 14, 2026.

Townships, towns and villages in Winnebago County27 with a page · sort by any column

Type
Rockford TownshipTownship169,120111.0 sq mi
RockfordCity147,48665.4 sq mi
Harlem TownshipTownship39,27932.7 sq mi
Loves ParkCity23,63616.3 sq mi
Machesney ParkVillage22,83912.7 sq mi
Roscoe TownshipTownship20,23330.7 sq mi
Cherry Valley TownshipTownship19,26930.3 sq mi
Rockton TownshipTownship16,13536.2 sq mi
RoscoeVillage10,98110.3 sq mi
South BeloitCity7,9836.17 sq mi
RocktonVillage7,8616.86 sq mi
Winnebago TownshipTownship4,96832.9 sq mi
Pecatonica TownshipTownship4,12734.9 sq mi
Owen TownshipTownship3,59035.3 sq mi
WinnebagoVillage2,9071.93 sq mi
Cherry ValleyVillage2,8888.40 sq mi
Durand TownshipTownship2,30029.6 sq mi
Lake SummersetCensus designated place2,2402.12 sq mi
PecatonicaVillage2,0581.28 sq mi
DurandVillage1,3830.92 sq mi
Westlake VillageCensus designated place1,2820.92 sq mi
Laona TownshipTownship1,26327.1 sq mi
Burritt TownshipTownship1,09632.7 sq mi
Shirland TownshipTownship96419.2 sq mi
Seward TownshipTownship84035.8 sq mi
New MilfordVillage8072.82 sq mi
Harrison TownshipTownship60624.6 sq mi

Populations: Census Population Estimates, Vintage 2024: subcounty totals, state 17 (2024). Land areas: Census Gazetteer 2025: counties. A dash means the figure is not in the cited file.

County officialsFrom public records

No county official is published yet. Names appear once a researcher drafts them from the county’s own site and a second person approves; office contacts only, never personal details.

Across Winnebago County

Jobs across Winnebago County

No job is posted in Winnebago County’s towns yet. Employers post from their business dashboard; public job banks are added once their terms are recorded.

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Events in the next 31 days

No upcoming event is listed in Winnebago County's towns yet. Members and businesses add events from any town page.

Latest postsRolled up from the towns

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Neighboring counties

Neighboring counties

Sources: Census county adjacency file 2024, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 17, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 55, retrieved November 14, 2026.