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Knox County, Illinois
Knox County Courthouse (Illinois) 1981.jpg
Knox County Courthouse
Map of Illinois highlighting Knox County
Location in the state of Illinois
Map of the U.S. highlighting Illinois
Illinois's location in the U.S.
Founded 1825
Named for Henry Knox
Seat Galesburg
Largest city Galesburg
Area
 - Total
 - Land
 - Water

720 sq mi (1,865 km²)
716 sq mi (1,854 km²)
3.4 sq mi (9 km²), 0.5
Population
 - (2020)
 - Density

49,967
Congressional district 17th
Time zone Central: UTC-6/-5
Website www.knoxcountyil.com

Knox County is a county in the U.S. state of Illinois. According to the 2020 census, it had a population of 49,967.[1] Its county seat is Galesburg.[2]

Knox County comprises the Galesburg, IL Micropolitan Statistical Area.

History[]

Knox County was named in honor of Henry Knox, the first US Secretary of War.[3]

The first "Knox County" in what today is Illinois was unrelated to the modern incarnation. In 1790, the land of the Indiana Territory that was to become Illinois was divided into two counties: St. Clair and Knox. The latter included land in what was to become Indiana. When Knox County, Indiana, was formed from this portion of the county in 1809, the Illinois portions were subdivided into counties that were given other names.

The modern Knox County, Illinois, was organized in 1825, from Fulton County, itself a portion of the original St. Clair County.

Like its neighbor to the south, Fulton County, for its Spoon River Drive, Knox County is also known for a similar scenic drive fall festival the first two weekends in October, the Knox County Drive.

Geography[]

According to the U.S. Census Bureau, the county has a total area of 720 square miles (1,900 km2), of which 716 square miles (1,850 km2) is land and 3.4 square miles (8.8 km2) (0.5%) is water.[4]

Climate and weather[]

Climate chart for Galesburg, Illinois
JFMAMJJASOND
 
 
1.41
 
29
13
 
 
1.55
 
35
19
 
 
2.84
 
48
29
 
 
3.81
 
61
40
 
 
3.97
 
73
51
 
 
4.18
 
81
61
 
 
4.37
 
85
65
 
 
4.07
 
82
63
 
 
3.50
 
75
55
 
 
2.52
 
63
43
 
 
2.72
 
47
31
 
 
2.28
 
33
19
temperatures in °Cprecipitation totals in mm
source: The Weather Channel[5]

In recent years, average temperatures in the county seat of Galesburg have ranged from a low of 13 °F (−11 °C) in January to a high of 85 °F (29 °C) in July, although a record low of −25 °F (−31.7 °C) was recorded in January 1982 and a record high of 102 °F (39 °C) was recorded in July 1983. Average monthly precipitation ranged from 1.41 inches (36 mm) in January to 4.37 inches (111 mm) in July.[5]

Major highways[]

  • I-74.svg Interstate 74
  • US 34.svg U.S. Highway 34
  • US 150.svg U.S. Highway 150
  • Illinois 8.svg Illinois Route 8
  • Illinois 17.svg Illinois Route 17
  • Illinois 41.svg Illinois Route 41
  • Illinois 78.svg Illinois Route 78
  • Illinois 97.svg Illinois Route 97
  • Illinois 164.svg Illinois Route 164
  • Illinois 116.svg Illinois Route 116
  • Illinois 167.svg Illinois Route 167
  • Illinois 180.svg Illinois Route 180

Adjacent counties[]

Demographics[]

Historical populations
Census Pop.
1830 274
1840 7,060 2,476.6%
1850 13,279 88.1%
1860 28,663 115.9%
1870 39,522 37.9%
1880 38,344 −3.0%
1890 38,752 1.1%
1900 43,612 12.5%
1910 46,159 5.8%
1920 46,727 1.2%
1930 51,336 9.9%
1940 52,250 1.8%
1950 54,366 4.0%
1960 61,280 12.7%
1970 61,280 0%
1980 61,607 0.5%
1990 56,393 −8.5%
2000 55,836 −1.0%
2010 52,919 −5.2%
U.S. Decennial Census[6]
1790-1960[7] 1900-1990[8]
1990-2000[9] 2010-2020[1]

2000 census age pyramid for Knox County

As of the 2010 United States Census, there were 52,919 people, 21,535 households, and 13,324 families residing in the county.[10] The population density was 73.9 inhabitants per square mile (28.5 /km2). There were 24,077 housing units at an average density of 33.6 per square mile (13.0 /km2).[4] The racial makeup of the county was 87.5% white, 7.2% black or African American, 0.6% Asian, 0.2% American Indian, 1.9% from other races, and 2.5% from two or more races. Those of Hispanic or Latino origin made up 4.8% of the population.[10] In terms of ancestry, 23.1% were German, 14.9% were Irish, 11.7% were English, 11.6% were Swedish, and 8.0% were American.[11]

Of the 21,535 households, 27.2% had children under the age of 18 living with them, 45.7% were married couples living together, 11.9% had a female householder with no husband present, 38.1% were non-families, and 32.3% of all households were made up of individuals. The average household size was 2.27 and the average family size was 2.84. The median age was 42.0 years.[10]

The median income for a household in the county was $39,545 and the median income for a family was $51,740. Males had a median income of $42,067 versus $25,380 for females. The per capita income for the county was $20,908. About 10.9% of families and 15.5% of the population were below the poverty line, including 24.7% of those under age 18 and 7.3% of those age 65 or over.[12]

Communities[]

Cities[]

Villages[]

Census-designated places[]

  • Gilson
  • Oak Run

Other unincorporated communities[]

  • Appleton
  • Centerville
  • Columbia Heights
  • Dahinda
  • Delong
  • Douglas
  • Elba Center
  • Henderson Grove
  • Hermon
  • Ontario
  • Rapatee
  • Saluda
  • Soperville
  • Trenton Corners
  • Truro
  • Uniontown

Townships[]

Knox County is divided into twenty-one townships:

  • Cedar
  • Chestnut
  • Copley
  • Elba
  • Galesburg
  • Galesburg City
  • Haw Creek
  • Henderson
  • Indian Point
  • Knox
  • Lynn
  • Maquon
  • Ontario
  • Orange
  • Persifer
  • Rio
  • Salem
  • Sparta
  • Truro
  • Victoria
  • Walnut Grove

Politics[]

Knox County's political history is typical of Yankee-settled Northern Illinois. It leaned Whig during its early elections – although giving a plurality to Franklin Pierce in 1852 – and become powerfully Republican following that party's formation. Although Knox did support Progressive Theodore Roosevelt against conservative incumbent President William Howard Taft in 1912, it was Franklin D. Roosevelt’s 1932 landslide before Knox County again gave the Democratic Party so much as a plurality, and it did not give a Democratic absolute majority until Lyndon B. Johnson gained such against the anti-Yankee, Southern-leaning Barry Goldwater in 1964.

Since then, Knox County gradually trended Democratic for the following four decades, so that Michael Dukakis in his losing 1988 campaign was able to carry the county by the same margin as Johnson had done in 1964. During the 1990s and 2000s, Knox was a solidly Democratic county, voting Democratic by at least nine percentage points in every election from 1992 to 2012. The 2016 election, in the shadow of high unemployment in the “Rust Belt” saw a swing of over twenty percentage points to Donald Trump, who became the first Republican victor in the county since Ronald Reagan in 1984.

United States presidential election results for Knox County, Illinois[13]
Year Republican Democratic Third party
No.  % No.  % No.  %
2020 12,009 51.75% 10,703 46.12% 496 2.14%
2016 10,737 47.71% 10,083 44.81% 1,683 7.48%
2012 9,408 40.28% 13,451 57.59% 497 2.13%
2008 9,419 39.09% 14,191 58.89% 488 2.03%
2004 11,111 44.97% 13,403 54.25% 194 0.79%
2000 9,912 42.77% 12,572 54.25% 690 2.98%
1996 7,822 34.69% 12,487 55.38% 2,239 9.93%
1992 8,331 32.93% 12,524 49.51% 4,441 17.56%
1988 10,842 45.75% 12,752 53.81% 106 0.45%
1984 14,974 55.21% 12,027 44.34% 121 0.45%
1980 14,907 56.90% 8,749 33.40% 2,542 9.70%
1976 14,123 54.39% 11,525 44.38% 319 1.23%
1972 17,315 64.69% 9,333 34.87% 118 0.44%
1968 14,216 53.86% 9,707 36.77% 2,473 9.37%
1964 12,850 46.14% 15,000 53.86% 0 0.00%
1960 17,938 60.09% 11,889 39.83% 23 0.08%
1956 18,656 66.04% 9,558 33.83% 37 0.13%
1952 18,569 64.16% 10,354 35.78% 17 0.06%
1948 15,016 60.18% 9,772 39.16% 164 0.66%
1944 15,964 61.02% 10,070 38.49% 126 0.48%
1940 17,459 57.77% 12,597 41.68% 168 0.56%
1936 14,712 50.52% 13,697 47.03% 715 2.46%
1932 12,244 49.14% 12,282 49.29% 392 1.57%
1928 16,151 72.33% 5,993 26.84% 186 0.83%
1924 12,968 65.89% 2,617 13.30% 4,095 20.81%
1920 12,559 73.85% 2,852 16.77% 1,594 9.37%
1916 10,918 58.82% 6,785 36.55% 860 4.63%
1912 1,750 16.72% 2,758 26.35% 5,959 56.93%
1908 7,084 63.83% 3,277 29.53% 737 6.64%
1904 7,566 73.84% 1,849 18.04% 832 8.12%
1900 7,810 67.62% 3,299 28.57% 440 3.81%
1896 7,681 67.39% 3,480 30.53% 236 2.07%
1892 5,800 60.49% 3,073 32.05% 715 7.46%



See also[]

  • National Register of Historic Places listings in Knox County, Illinois

References[]

  1. ^ a b "State & County QuickFacts". United States Census Bureau. http://quickfacts.census.gov/qfd/states/17/17095.html. 
  2. ^ "Find a County". National Association of Counties. http://www.naco.org/Counties/Pages/FindACounty.aspx. 
  3. ^ Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Government Printing Office. pp. 177. https://archive.org/details/bub_gb_9V1IAAAAMAAJ. 
  4. ^ a b "Population, Housing Units, Area, and Density: 2010 - County". United States Census Bureau. http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_SF1/GCTPH1.CY10/0500000US17095. 
  5. ^ a b "Monthly Averages for Galesburg, Illinois". The Weather Channel. http://www.weather.com/weather/wxclimatology/monthly/graph/USIL0439. 
  6. ^ "U.S. Decennial Census". United States Census Bureau. https://www.census.gov/programs-surveys/decennial-census.html. 
  7. ^ "Historical Census Browser". University of Virginia Library. http://mapserver.lib.virginia.edu. 
  8. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. https://www.census.gov/population/cencounts/il190090.txt. 
  9. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000". United States Census Bureau. https://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf. 
  10. ^ a b c "DP-1 Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data". United States Census Bureau. http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_DP/DPDP1/0500000US17095. 
  11. ^ "DP02 SELECTED SOCIAL CHARACTERISTICS IN THE UNITED STATES – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP02/0500000US17095. 
  12. ^ "DP03 SELECTED ECONOMIC CHARACTERISTICS – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP03/0500000US17095. 
  13. ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". http://uselectionatlas.org/RESULTS. 

Further reading[]

External links[]

Coordinates: 40°56′N 90°13′W / 40.93, -90.21


This page uses content from the English language Wikipedia. The original content was at Knox County, Illinois. The list of authors can be seen in the page history. As with this Familypedia wiki, the content of Wikipedia is available under the Creative Commons License.
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