Kendall County, Illinois
Kendall County, Illinois · ZIP 60431, 60447, 60503
- Census data · ACS 2019-2023
- 143,171 (2024 estimate)Population
- 44,526Households
- $110,474Median household income
- $298,900Median home value
- 17Towns with a page
- 15ZIP codes
Kendall County in numbersOfficial sources, refreshed yearly
| Census | Population |
|---|---|
| 2000 | 54,544 |
| 2010 | 114,736 |
| 2020 | 131,869 |
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.
Median household income $110,474 · 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.
- Owner occupied
- 37,480 units
- Renter occupied
- 7,046 units
- Vacancy rate
- 2.7%
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.
25,500 employees in 2,548 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.
| Measure | Kendall County | Illinois |
|---|---|---|
| Population | 135,053 | 12,692,653 |
| Median household income | $110,474 | $81,702 |
| Median age | 36.0 | 38.9 |
| Median home value | $298,900 | $250,500 |
| Bachelor’s degree or higher | 36.4% | 37.2% |
| Foreign-born residents | 10.5% | 14.4% |
| Owner-occupied homes | 84.2% | 66.8% |
| Mean commute to work | 32.9 minutes | 28.1 minutes |
Source: American Community Survey 5-year data profile 2019–2023, county level, state 17, retrieved November 14, 2026.
Townships, towns and villages in Kendall County17 with a page · sort by any column
| Type | |||
|---|---|---|---|
| Oswego Township | Township | 60,581 | 39.9 sq mi |
| Oswego | Village | 38,778 | 16.2 sq mi |
| Bristol Township | Township | 35,771 | 28.4 sq mi |
| Yorkville | City | 25,986 | 20.4 sq mi |
| Little Rock Township | Township | 14,902 | 35.2 sq mi |
| Plano | City | 12,677 | 9.02 sq mi |
| Na-Au-Say Township | Township | 11,141 | 34.2 sq mi |
| Kendall Township | Township | 9,912 | 39.1 sq mi |
| Boulder Hill | Census designated place | 9,127 | 1.46 sq mi |
| Seward Township | Township | 6,769 | 35.0 sq mi |
| Fox Township | Township | 1,660 | 36.2 sq mi |
| Big Grove Township | Township | 1,654 | 35.7 sq mi |
| Newark | Village | 980 | 1.12 sq mi |
| Lisbon Township | Township | 781 | 36.6 sq mi |
| Millbrook | Village | 282 | 1.84 sq mi |
| Lisbon | Village | 274 | 2.12 sq mi |
| Plattville | Village | 221 | 2.26 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 Kendall County
No job is posted in Kendall County’s towns yet. Employers post from their business dashboard; public job banks are added once their terms are recorded.
No upcoming event is listed in Kendall County's towns yet. Members and businesses add events from any town page.
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Neighboring counties
Neighboring counties
- DeKalb CountyPopulation 101,335 (2024 estimate)
- DuPage CountyPopulation 937,142 (2024 estimate)
- Grundy CountyPopulation 53,835 (2024 estimate)
- Kane CountyPopulation 520,997 (2024 estimate)
- LaSalle CountyPopulation 108,390 (2024 estimate)
- Will CountyPopulation 708,583 (2024 estimate)
Sources: Census county adjacency file 2024, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 17, retrieved November 14, 2026.