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Marion County, Illinois
Marion County Courthouse in Salem.jpg
Marion County Courthouse in Salem
Map of Illinois highlighting Marion County
Location in the state of Illinois
Map of the U.S. highlighting Illinois
Illinois's location in the U.S.
Founded 1823
Named for Francis Marion
Seat Salem
Largest city Centralia
Area
 - Total
 - Land
 - Water

576 sq mi (1,492 km²)
572 sq mi (1,481 km²)
3.7 sq mi (10 km²), 0.6
Population
 - (2020)
 - Density

37,729
Congressional district 15th
Time zone Central: UTC-6/-5

Marion County is a county located in the U.S. state of Illinois. According to the 2020 census, it had a population of 37,729.[1] Its county seat is Salem.[2]

Marion County comprises the Centralia, IL Micropolitan Statistical Area, which is included in the St. Louis-St. Charles-Farmington, MO-IL Combined Statistical Area.

History[]

Marion County was organized on 24 January 1823 from portions of Jefferson and Fayette counties. It was named in honor of Revolutionary War Gen. Francis Marion, the "Swamp Fox".[3]

Geography[]

According to the U.S. Census Bureau, the county has a total area of 576 square miles (1,490 km2), of which 572 square miles (1,480 km2) is land and 3.7 square miles (9.6 km2) (0.6%) is water.[4]

The southwest corner of Marion County is the intersection of the Baseline with the Third Principal Meridian, the point of origin for the third survey of the Northwest Territory under the Land Ordinance of 1785. The origin is marked with a boulder south of Centralia just off U.S. 51.

Climate and weather[]

Climate chart for Salem, Illinois
JFMAMJJASOND
 
 
2.46
 
37
18
 
 
2.53
 
43
22
 
 
3.98
 
54
33
 
 
4.01
 
65
44
 
 
4.37
 
75
54
 
 
4.15
 
84
63
 
 
3.90
 
88
68
 
 
3.43
 
87
66
 
 
3.22
 
80
57
 
 
3.10
 
69
45
 
 
4.12
 
54
34
 
 
3.26
 
42
24
temperatures in °Cprecipitation totals in mm
source: The Weather Channel[5]

In recent years, average temperatures in the county seat of Salem have ranged from a low of 18 °F (−8 °C) in January to a high of 88 °F (31 °C) in July, although a record low of −23 °F (−30.6 °C) was recorded in January 1994 and a record high of 105 °F (41 °C) was recorded in August 1983. Average monthly precipitation ranged from 2.46 inches (62 mm) in January to 4.37 inches (111 mm) in May.[5]

Major highways[]

  • I-57.svg Interstate 57
  • US 50.svg U.S. Route 50
  • US 51.svg U.S. Route 51
  • Illinois 37.svg Illinois Route 37
  • Illinois 161.svg Illinois Route 161

Adjacent counties[]

Demographics[]

Historical populations
Census Pop.
1830 2,125
1840 4,742 123.2%
1850 6,720 41.7%
1860 12,739 89.6%
1870 20,622 61.9%
1880 23,686 14.9%
1890 24,341 2.8%
1900 30,446 25.1%
1910 35,094 15.3%
1920 37,497 6.8%
1930 35,635 −5.0%
1940 47,989 34.7%
1950 41,700 −13.1%
1960 39,349 −5.6%
1970 38,986 −0.9%
1980 43,523 11.6%
1990 41,561 −4.5%
2000 41,691 0.3%
2010 39,437 −5.4%
U.S. Decennial Census[6]
1790-1960[7] 1900-1990[8]
1990-2000[9] 2010-2020[1]

As of the 2010 United States Census, there were 39,437 people, 16,148 households, and 10,746 families residing in the county.[10] The population density was 68.9 inhabitants per square mile (26.6 /km2). There were 18,296 housing units at an average density of 32.0 per square mile (12.4 /km2).[4] The racial makeup of the county was 93.1% white, 3.9% black or African American, 0.6% Asian, 0.3% American Indian, 0.4% from other races, and 1.6% from two or more races. Those of Hispanic or Latino origin made up 1.4% of the population.[10] In terms of ancestry, 27.5% were German, 15.8% were Irish, 13.6% were English, and 10.8% were American.[11]

Of the 16,148 households, 30.9% had children under the age of 18 living with them, 48.9% were married couples living together, 12.8% had a female householder with no husband present, 33.5% were non-families, and 28.8% of all households were made up of individuals. The average household size was 2.40 and the average family size was 2.91. The median age was 41.4 years.[10]

The median income for a household in the county was $38,974 and the median income for a family was $50,518. Males had a median income of $41,428 versus $28,042 for females. The per capita income for the county was $20,493. About 12.2% of families and 16.5% of the population were below the poverty line, including 23.9% of those under age 18 and 9.6% of those age 65 or over.[12]

Communities[]

Cities[]

Villages[]

  • Alma
  • Central City
  • Iuka
  • Junction City
  • Kell
  • Odin
  • Patoka
  • Sandoval
  • Vernon
  • Walnut Hill

Townships[]

Marion County is divided into seventeen townships:

  • Alma
  • Carrigan
  • Centralia
  • Foster
  • Haines
  • Iuka
  • Kinmundy
  • Meacham
  • Odin
  • Omega
  • Patoka
  • Raccoon
  • Romine
  • Salem
  • Sandoval
  • Stevenson
  • Tonti

Unincorporated Communities[]

  • Greendale
  • Tonti

Politics[]

Initially a strongly Democratic anti-Yankee county, Marion County has undergone two transitions. Between 1912 and 2004 it was a perfect bellwether apart from the Catholicism-influenced 1960 election when substantial anti-Catholic voting by its largely southern white population caused it to support Republican Richard Nixon. Since the beginning of the twenty-first century it has voted consistently for Republican presidential candidates.

United States presidential election results for Marion County, Illinois[13]
Year Republican Democratic Third party
No.  % No.  % No.  %
2020 12,678 72.47% 4,524 25.86% 292 1.67%
2016 11,859 69.36% 4,369 25.55% 870 5.09%
2012 9,248 58.46% 6,225 39.35% 347 2.19%
2008 8,691 49.92% 8,345 47.93% 374 2.15%
2004 9,413 54.65% 7,694 44.67% 117 0.68%
2000 8,240 49.45% 8,068 48.42% 355 2.13%
1996 5,999 38.06% 7,792 49.43% 1,972 12.51%
1992 5,764 30.52% 9,669 51.20% 3,450 18.27%
1988 8,695 50.05% 8,592 49.46% 86 0.50%
1984 11,300 59.65% 7,599 40.11% 46 0.24%
1980 10,969 58.73% 6,990 37.42% 719 3.85%
1976 8,729 46.63% 9,834 52.53% 157 0.84%
1972 10,755 60.58% 6,968 39.25% 31 0.17%
1968 8,134 46.09% 7,737 43.84% 1,778 10.07%
1964 7,060 36.35% 12,363 63.65% 0 0.00%
1960 11,121 54.92% 9,116 45.02% 13 0.06%
1956 10,813 55.78% 8,551 44.11% 21 0.11%
1952 10,804 53.64% 9,317 46.26% 19 0.09%
1948 7,798 46.19% 8,878 52.58% 208 1.23%
1944 9,408 47.90% 10,079 51.32% 153 0.78%
1940 10,461 42.74% 13,807 56.41% 208 0.85%
1936 8,321 42.79% 10,820 55.64% 305 1.57%
1932 6,276 36.11% 10,791 62.09% 313 1.80%
1928 9,110 60.52% 5,823 38.69% 119 0.79%
1924 5,889 44.01% 4,768 35.63% 2,724 20.36%
1920 6,620 52.06% 4,351 34.22% 1,744 13.72%
1916 6,438 42.99% 7,892 52.70% 646 4.31%
1912 1,586 20.10% 3,493 44.26% 2,813 35.64%
1908 3,435 43.14% 4,001 50.24% 527 6.62%
1904 3,190 47.25% 2,490 36.88% 1,071 15.86%
1900 3,221 43.88% 3,928 53.51% 191 2.60%
1896 2,870 42.32% 3,835 56.55% 77 1.14%
1892 2,324 39.88% 2,709 46.49% 794 13.63%



See also[]

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

References[]

  1. ^ a b "State & County QuickFacts". United States Census Bureau. http://quickfacts.census.gov/qfd/states/17/17121.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. U.S. Government Printing Office. p. 200. 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.CY10/0500000US17121. 
  5. ^ a b "Monthly Averages for Salem, Illinois". The Weather Channel. http://www.weather.com/weather/wxclimatology/monthly/graph/USIL1047. 
  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/DPDP1/0500000US17121. 
  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/DP02/0500000US17121. 
  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/DP03/0500000US17121. 
  13. ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". http://uselectionatlas.org/RESULTS. 

Coordinates: 38°39′N 88°55′W / 38.65, -88.92


This page uses content from the English language Wikipedia. The original content was at Marion 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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