Knox County, Illinois
Knox County: county in Illinois, United States.
About
Knox County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 52,919 and a population density of 28 people per km². After 10 years in 2020 county had an estimated population of 49,053 inhabitants. Its county seat is Galesburg. The county was created 201 years ago in 1824.
County Snapshot
Knox County at a glance
Knox County currently has 4 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
4
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
Illinois counties
102
Open related pagesLargest city
GalesburgPopulation 29,803
Top linked places
Quick Facts about Knox County
| Population | 49,053 (2020) |
| Country | United States of America |
| State | Illinois (United States) |
| Different from | Knox County, Knox County, Knox County, Knox County, Knox County, Knox County, Knox County, Knox County |
| Area | 1864 km2 |
| Water as percent of area | 0.5% |
| Land as percent of area | 99.5% |
| Latitude & Longitude | 40.9318,-90.2133 |
| Named for | Henry Knox |
| Capital | Galesburg |
| Establishment | January 01, 1825 |
| Time Zone | America/Chicago |
| Local time | 05:30:59 (23rd September 2026) |
| Density | 26 Pop. per km² as of 2020 |
| Population growth | -7.31% (2010-2020) |
| Weather | 69℉ Mostly Sunny 7-days weather |
Geography
Knox County is located at 40°55'55"N 90°12'48"W (40.9318200, -90.2132600). It has 6 neighbors: Fulton County, Henry County, Mercer County, Peoria County, Stark County and Warren County.
Knox County map
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The largest city of Knox County is Galesburg with a population of 29,803. Other cities include, Abingdon population 3,008, Knox population 2,692 and Knoxville population 2,692. See all Knox County cities & populated places.
Knox County Populated Places
Cities, towns, neighborhoods & other populated places in Knox County.
| City Name | Population | Title |
|---|---|---|
| Galesburg | 29,803 | County seat of Knox County, Illinois, United States |
| Abingdon | 3,008 | City in Knox County, Illinois, United States of America |
| Knox | 2,692 | County seat of Knox County, Tennessee, United States; third-largest city in Tennessee |
| Knoxville | 2,692 | City in Knox County, Illinois, United States |
Weather
Mostly sunny, with a high near 69. Northeast wind 5 to 10 mph, with gusts as high as 16 mph.
7-Day ForecastOfficial website of Knox County
Official Website- Galesburg
Demographics
According to census records, the population of Knox County decreased by 7.31% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 52,919 | - | census |
| 2011 | 52,705 | -0.4% | estimation process |
| 2012 | 52,302 | -0.76% | estimation process |
| 2013 | 52,129 | -0.33% | estimation process |
| 2014 | 51,944 | -0.35% | estimation process |
| 2015 | 51,370 | -1.11% | estimation process |
| 2016 | 50,917 | -0.88% | estimation process |
| 2017 | 50,577 | -0.67% | estimation process |
| 2018 | 49,978 | -1.18% | estimation process |
| 2019 | 49,699 | -0.56% | estimation process |
| 2020 | 49,053 | -1.3% | estimation process |
People born in Knox County (5)
People born in Knox County, including Union Army officer and U.S.A. diplomat Edwin Hurd Conger, politician John E. Raker, zoologist Harley Jones Van Cleave, .
More notable people
- Gale Schisler (American politician) he was born in 02/03/1933
- Claude Ewing Rusk he was born in 20/11/1871
Other places with the same name (8)
- Knox County, Tennessee county in Maine, United States. with a population of 475,609 people.
- Knox County, Ohio county in Ohio, United States. with a population of 62,423 people.
- Knox County, Maine county in Maine, United States. with a population of 39,951 people.
- Knox County, Indiana county in Indiana, United States. with a population of 36,522 people.
- Knox County, Kentucky county in Kentucky, United States. with a population of 31,022 people.
- Knox County, Nebraska county in Nebraska, United States. with a population of 8,304 people.
- Knox County, Missouri county in Missouri, United States. with a population of 3,940 people.
- Knox County, Texas county in Texas, United States. with a population of 3,683 people.
Illinois Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| Cook County | 5,108,284 | County in Illinois, United States |
| Chicago | 2,677,643 | The third most populous city in the United States and the center of the Chicago metropolitan area. |
| DuPage County | 917,481 | County in Illinois, United States |
| Lake County | 693,593 | County in Oregon, United States |
| Will County | 688,726 | County in Illinois, United States |
| Kane County | 531,010 | County in southern Utah, United States |
| McHenry County | 305,888 | County in Illinois, United States |
| Winnebago County | 281,295 | County in Illinois, United States |
| Madison County | 262,635 | County in Montana, United States |
| Saint Clair County | 258,046 | The County of St. |
| Champaign County | 209,192 | County in Illinois, United States |
| Aurora | 196,383 | The second most populous city in Illinois. |
| Sangamon County | 193,882 | County in Illinois, United States |
| Peoria County | 177,652 | County in Illinois, United States of America |
| McLean County | 171,256 | County in North Dakota, United States |
| Naperville | 147,986 | The second most populous city in Illinois. |