Kewanee, Illinois Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Kewanee, Illinois is 12,280 as of the 2023 American Community Survey, making it the 194th-largest city in Illinois. The median household income is $49,668, the median home value is $70,000, and the median age is 43.6.
The population has declined 5.9% since 2010 (12,908 → 12,146).
12,280
Population
1861
People / sq mi
$49,668
Median Income
$70,000
Median Home Value
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Kewanee covers 6.6 sq mi of land at 1861 people per square mile.
About Kewanee, IL
Housing cost is the defining feature of Kewanee: the median home is valued at $70,000. With 12,280 residents, Kewanee is a city in Illinois.
Earnings trail the nation, with the median household making $49,668, below the US median of $78,538. About 9.4% of residents live below the federal poverty level, below the national 12.4%. Real estate is inexpensive, with a typical home worth only $70,000, with typical rent around $775.
College credentials are comparatively rare here: just 15.1%, below the national 35.0%. Remote work is on the lower side here, at 6.1%, below the national 14.0%, and the average commute runs about 19 minutes each way.
Kewanee city Population History (2010-2024)
The city of Kewanee city had a population of 12,908 in 2010 and 12,146 in 2024, a -5.9% growth over 14 years. The peak was 12,908 in 2010. Average annual growth rate: -0.43%.
12,146
Population (2024)
12,908
Population (2010)
12,908
Peak (2010)
-0.43%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 12,908 |
| 2011 | 12,853 |
| 2012 | 12,822 |
| 2013 | 12,720 |
| 2014 | 12,660 |
| 2015 | 12,591 |
| 2016 | 12,537 |
| 2017 | 12,449 |
| 2018 | 12,395 |
| 2019 | 12,339 |
| 2020 | 12,468 |
| 2021 | 12,391 |
| 2022 | 12,271 |
| 2023 | 12,208 |
| 2024 | 12,146 |
Race & Ethnicity
| White | 80.2% |
| Black or African American | 7.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.2% |
| Two or More Races | 0.0% |
Economy & Income
$49,668
Median Household Income
$26,763
Per Capita Income
9.4%
Poverty Rate
3.5%
Unemployment Rate
Housing
$70,000
Median Home Value
$775
Median Rent
69.9%
Owner-Occupied
Education
83.4%
High School+
15.1%
Bachelor's+
Commute
0.0%
Drive Alone
78.3%
Public Transit
6.1%
Work From Home
18.5 min
Avg Commute
Community Profile
13.4%
Foreign Born
91.6%
Non-English at Home
7.9%
Veterans
20.3%
With Disability
96.4%
Health Insurance
86.3%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 26.7% |
| Manufacturing | 20.0% |
| Construction | 7.3% |
| Education, Health Care & Social Services | 6.8% |
| Public Administration | 5.5% |
| Arts, Entertainment & Food Services | 4.9% |
| Retail Trade | 3.5% |
| Information | 2.6% |
| Finance, Insurance & Real Estate | 2.3% |
| Agriculture & Mining | 1.6% |
| Transportation & Warehousing | 0.5% |
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Frequently Asked Questions
Kewanee, Illinois has a population of 12,280 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 194th-largest city in Illinois.
The median household income in Kewanee, Illinois is $49,668, with 9.4% of residents living below the federal poverty level.
The median home value in Kewanee, Illinois is $70,000, with median monthly rent at $775 and a homeownership rate of 69.9%.
The median age in Kewanee, Illinois is 43.6 years. The population is 49.8% male and 50.2% female.
The population has declined 5.9% since 2010 (12,908 → 12,146).
Kewanee city, IL Climate
Kewanee city, IL has an average annual temperature of 9.6°C (49°F) and receives about 959 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
9.6°C
Avg Temp
959
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -7° / 20° | 37 mm |
| February | -4° / 26° | 36 mm |
| March | 3° / 38° | 71 mm |
| April | 10° / 50° | 99 mm |
| May | 16° / 61° | 105 mm |
| June | 21° / 70° | 111 mm |
| July | 23° / 74° | 102 mm |
| August | 22° / 72° | 105 mm |
| September | 18° / 64° | 96 mm |
| October | 12° / 53° | 71 mm |
| November | 4° / 39° | 70 mm |
| December | -3° / 26° | 56 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Kewanee city, IL
The most comfortable months to visit Kewanee city, IL are typically June, August and July, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 30°C high). The coldest is January (near -11°C low). June is usually the wettest month.
Where to stay near Kewanee
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.