Illinois's 12th congressional district

Illinois's 12th congressional district
Interactive map of district boundaries since January 3, 2023
Representative	Mike Bost R–Murphysboro
Area	14,296.2 sq mi (37,027 km2)
Distribution	75.4% urban 24.6% rural
Population (2023)	749,426
Median household income	$65,076 [1]
Ethnicity	86.9% White 4.9% Black 3.9% Two or more races 2.8% Hispanic 1.0% Asian 0.5% other
Cook PVI	R+24 [2]

The 12th congressional district of Illinois is a congressional district in the southern part of U.S. state of Illinois. It has been represented by Republican Mike Bost since 2015. With a Cook Partisan Voting Index of R+24, it is the most Republican district in Illinois. ^[2]

History

2011 redistricting

The district covers parts of Madison and St. Clair counties, and all of Alexander, Franklin, Hamilton, Jackson, Jefferson, Monroe, Perry, Pulaski, Randolph, Union and Williamson counties, as of the 2011 redistricting which followed the 2010 census. All or parts of Belleville, Cahokia, Carbondale, Collinsville, East St. Louis, Granite City, Herrin, Marion, Mt. Vernon, O'Fallon, Shiloh and Swansea are included. ^[3] The representatives for these districts were elected in the 2012 primary and general elections, and the boundaries became effective on January 5, 2013.

Composition

Composition

#	County	Seat	Population
23	Clark	Marshall	15,088
25	Clay	Louisville	12,999
27	Clinton	Carlyle	36,785
29	Coles	Charleston	46,060
33	Crawford	Robinson	18,300
35	Cumberland	Toledo	10,261
47	Edwards	Albion	5,968
49	Effingham	Effingham	34,331
59	Gallatin	Shawneetown	4,670
65	Hamilton	McLeansboro	7,911
69	Hardin	Elizabethtown	3,569
77	Jackson	Murphysboro	52,141
79	Jasper	Newton	9,144
81	Jefferson	Mount Vernon	36,320
87	Johnson	Vienna	13,326
101	Lawrence	Lawrenceville	14,813
121	Marion	Salem	36,673
125	Massac	Metropolis	13,661
133	Monroe	Waterloo	34,957
145	Perry	Pinckneyville	20,503
151	Pope	Golconda	3,707
153	Pulaski	Mound City	4,911
157	Randolph	Chester	29,815
165	Saline	Harrisburg	22,873
163	St. Clair	Belleville	251,018
181	Union	Jonesboro	16,667
185	Wabash	Mount Carmel	10,942
191	Wayne	Fairfield	15,761
193	White	Carmi	13,401
199	Williamson	Marion	66,706

Cities and CDPs with 10,000 or more people

• Belleville – 42,404
• O'Fallon – 32,289
• Carbondale – 25,083
• Charleston – 17,286
• Mattoon – 16,870
• Marion – 16,855
• Fairview Heights – 16,706
• Mount Vernon – 14,600
• Shiloh – 14,098
• Herrin – 12,352
• Effingham – 12,252
• Centralia – 12,182
• Waterloo – 11,013
• Columbia – 10,999

2,500 to 10,000 people

• Mascoutah – 8,754
• Olney – 8,701
• Harrisburg – 8,219
• Chester – 7,640
• Salem – 7,282
• West Frankfort – 7,275
• Robinson – 7,150
• Murphysboro – 7,093
• Mount Carmel – 7,015
• Benton – 6,709
• Metropolis – 5,969
• Carterville – 5,848
• Du Quoin – 5,827
• Pinckneyville – 5,066
• Fairfield – 4,883
• Carmi – 4,865
• Flora – 4,803
• Lebanon – 4,691
• Breese – 4,641
• Freeburg – 4,582
• Caseyville – 4,400
• Anna – 4,303
• Lawrenceville – 4,164
• Sparta – 4,095
• Millstadt – 4,071
• Smithton – 4,006
• Marshall – 3,947
• Red Bud – 3,804
• Eldorado – 3,743
• Scott AFB – 3,612
• New Baden – 3,428
• Johnston City – 3,384
• Carlyle – 3,253
• Nashville – 3,105
• Newton – 2,777
• Christopher – 2,697
• Trenton – 2,690
• McLeansboro – 2,675
• Sumner – 2,631

Following the 2020 redistricting, this district will go from covering southeastern Illinois to encompassing the entirety of Southern Illinois, spanning the Illinois-Missouri-Kentucky-Indiana border. It will take in Monroe, Randolph, Clinton, Perry, Jackson, Union, Alexander, Pulaski, Massac, Johnson, Williamson, Jefferson, Marion, Clay, Effingham, Wayne, Hamilton, Saline, Pope, Hardin, Gallatin, White, Edwards, Wabash, Richland, Lawrence, Jasper, Crawford, Cumberland, and Clark Counties, most of St. Clair County, and half of Coles County.

St. Clair County is split between this district and the 13th district. They are partitioned by a Conrail line, Tanglewood Parkway, Donner Ridge, Hollywood Heights Rd, Oliver St, CSX Transportation Line, S Oak St, W 5th St, S Lincoln Ave, E US Highway 50, County Rd 218, Old O'Fallon Rd, Frank Scott Parkway E, N Green Mount Rd, S Green Mount Rd, Park Rd, S 59th St, Old St. Louis Rd, Illinois Highway 15, Rolling Acres Ln, Excellence Dr, Powdermill Creek, Cemetery Rd, and Illinois Highway 50. The 12th district takes in the municipalities of Mascoutah, Lebanon, New Athens, Marissa, Millstadt, Smithton, Freeburg, Summerfield, Scott AFB, Rentchler, Floraville, Paderborn, Fayetteville, St. Libory, Darmstadt, and Lenzburg; most of Shiloh; half of O'Fallon; and part of Caseyville, Fairview Heights, and Belleville.

Coles County is split between this district and the 15th district. They are partitioned by West St, North County Rd 1800 East, Lincoln Prairie Grass Trail, 18th St, County Rd 1600 East, County Rd 400 North, County Rd 1240 East, Illinois Route 16, Dettro Dr, 700 North Rd, Old Fellow Rd, and the Kickapoo Creek. The 12th district takes in the communities of Ashmore, Oakland, Lerna, Janesville (shared with Cumberland County), and Trilla; part of southern Mattoon; and part of Charleston.

Recent election results from statewide races

Year	Office	Results [4]
2008	President	McCain 54% - 44%
2012	President	Romney 63% - 37%
2016	President	Trump 69% - 26%
	Senate	Kirk 56% - 39%
	Comptroller (Spec.)	Munger 63% - 32%
2018	Governor	Rauner 57% - 33%
	Attorney General	Harold 67% - 30%
	Secretary of State	Helland 51% - 47%
	Comptroller	Senger 61% - 36%
	Treasurer	Dodge 63% - 34%
2020	President	Trump 70% - 28%
	Senate	Curran 66% - 31%
2022	Senate	Salvi 68% - 30%
	Governor	Bailey 73% - 25%
	Attorney General	DeVore 72% - 25%
	Secretary of State	Brady 72% - 25%
	Comptroller	Teresi 68% - 30%
	Treasurer	Demmer 72% - 26%
2024	President	Trump 71% - 28%

List of members representing the district

Name	Party	Years	Cong– ress	Electoral history	Counties
District created March 4, 1863
William Ralls Morrison (Waterloo)	Democratic	March 4, 1863 – March 3, 1865	38th	Elected in 1862. Lost re-election.	1863–1873 Clinton, Madison, Monroe, Randolph, St. Clair, and Washington
Jehu Baker (Belleville)	Republican	March 4, 1865 – March 3, 1869	39th 40th	Elected in 1864. Re-elected in 1866. Retired.
John B. Hay (Belleville)	Republican	March 4, 1869 – March 3, 1873	41st 42nd	Elected in 1868. Re-elected in 1870. Redistricted to the 17th district and lost re-election.
James Carroll Robinson (Springfield)	Democratic	March 4, 1873 – March 3, 1875	43rd	Redistricted from the 8th district and re-elected in 1872. Retired.	1873–1883 Cass, Christian, Menard, Morgan, Sangamon, and Scott
William McKendree Springer (Springfield)	Democratic	March 4, 1875 – March 3, 1883	44th 45th 46th 47th	Elected in 1874. Re-elected in 1876. Re-elected in 1878. Re-elected in 1880. Redistricted to the 13th district .
James M. Riggs (Winchester)	Democratic	March 4, 1883 – March 3, 1887	48th 49th	Elected in 1882. Re-elected in 1884. Retired.	1883–1895 [ data missing ]
George A. Anderson (Quincy)	Democratic	March 4, 1887 – March 3, 1889	50th	Elected in 1886. Retired.
Scott Wike (Pittsfield)	Democratic	March 4, 1889 – March 3, 1893	51st 52nd	Elected in 1888. Re-elected in 1890. Lost renomination.
John James McDannold (Mount Sterling)	Democratic	March 4, 1893– March 3, 1895	53rd	Elected in 1892. Retired.
Joseph Gurney Cannon (Danville)	Republican	March 4, 1895– March 3, 1903	54th 55th 56th 57th	Redistricted from the 15th district and re-elected in 1894. Re-elected in 1896. Re-elected in 1898. Re-elected in 1900. Redistricted to the 18th district .	1895–1903 Iroquois, Kankakee, Vermillion, and Will
Charles Eugene Fuller (Belvidere)	Republican	March 4, 1903– March 3, 1913	58th 59th 60th 61st 62nd	Elected in 1902. Re-elected in 1904. Re-elected in 1906. Re-elected in 1908. Re-elected in 1910. Lost re-election.	1903–1913 Boone, DeKalb, Grundy, Kendall, LaSalle, and Winnebago
William H. Hinebaugh (Ottawa)	Progressive	March 4, 1913– March 3, 1915	63rd	Elected in 1912. Lost re-election.	1913–1949 Boone, DeKalb, Grundy, Kendall, LaSalle, and Winnebago
Charles Eugene Fuller (Belvidere)	Republican	March 4, 1915– June 25, 1926	64th 65th 66th 67th 68th 69th	Elected again in 1914. Re-elected in 1916. Re-elected in 1918. Re-elected in 1920. Re-elected in 1922. Re-elected in 1924. Died.
Vacant		June 25, 1926– March 3, 1927	69th
John T. Buckbee (Rockford)	Republican	March 4, 1927– April 23, 1936	70th 71st 72nd 73rd 74th	Elected in 1926. Re-elected in 1928. Re-elected in 1930. Re-elected in 1932. Re-elected in 1934. Died.
Vacant		April 23, 1936– January 3, 1937	74th
Noah M. Mason (Oglesby)	Republican	January 3, 1937– January 3, 1949	75th 76th 77th 78th 79th 80th	Elected in 1936. Re-elected in 1938. Re-elected in 1940. Re-elected in 1942. Re-elected in 1944. Re-elected in 1946. Redistricted to the 15th district .
Edgar A. Jonas (Chicago)	Republican	January 3, 1949– January 3, 1955	81st 82nd 83rd	Elected in 1948. Re-elected in 1950. Re-elected in 1952. Lost re-election.	1949–1953 Cook
					1953–1963 Cook
Charles A. Boyle (Chicago)	Democratic	January 3, 1955– November 4, 1959	84th 85th 86th	Elected in 1954. Re-elected in 1956. Re-elected in 1958. Died.
Vacant		November 4, 1959– January 3, 1961	86th
Edward Rowan Finnegan (Chicago)	Democratic	January 3, 1961– January 3, 1963	87th	Elected in 1960. Redistricted to the 9th district .
Robert McClory (Lake Bluff)	Republican	January 3, 1963– January 3, 1973	88th 89th 90th 91st 92nd	Elected in 1962. Re-elected in 1964. Re-elected in 1966. Re-elected in 1968. Re-elected in 1970. Redistricted to the 13th district .	1963–1967 Boone, Lake, and McHenry
					1967–1973 Cook, Lake, and McHenry
Phil Crane (McHenry)	Republican	January 3, 1973– January 3, 1993	93rd 94th 95th 96th 97th 98th 99th 100th 101st 102nd	Elected in 1972. Re-elected in 1974. Re-elected in 1976. Re-elected in 1978. Re-elected in 1980. Re-elected in 1982. Re-elected in 1984. Re-elected in 1986. Re-elected in 1988. Re-elected in 1990. Redistricted to the 8th district .	1973–1983 Cook and Lake
					1983–1993 Cook, Lake, and McHenry
Jerry Costello (Belleville)	Democratic	January 3, 1993– January 3, 2013	103rd 104th 105th 106th 107th 108th 109th 110th 111th 112th	Redistricted from the 21st district and re-elected in 1992. Re-elected in 1994. Re-elected in 1996. Re-elected in 1998. Re-elected in 2000. Re-elected in 2002. Re-elected in 2004. Re-elected in 2006. Re-elected in 2008. Re-elected in 2010. Retired.	1993–2003 Alexander, Jackson, Madison, Monroe, Perry, Randolph, St. Clair, Union, and Williamson
					2003–2013 Alexander, Franklin, Jackson, Madison, Monroe, Perry, Pulaski, Randolph, St. Clair, Union, Williamson
William Enyart (Belleville)	Democratic	January 3, 2013– January 3, 2015	113th	Elected in 2012. Lost re-election.	2013–2023 Alexander, Franklin, Jackson, Jefferson, Madison, Monroe, Perry, Pulaski, Randolph, St. Clair, Union, and Williamson
Mike Bost (Murphysboro)	Republican	January 3, 2015– present	114th 115th 116th 117th 118th 119th	Elected in 2014. Re-elected in 2016. Re-elected in 2018. Re-elected in 2020. Re-elected in 2022. Re-elected in 2024.
					2023–present Alexander, Clark, Clay, Clinton, Coles (part), Crawford, Cumberland, Edwards, Effingham, Franklin, Gallatin, Hamilton, Hardin, Jackson, Jasper, Jefferson, Johnson, Lawrence, Marion, Massac, Monroe, Perry, Pope, Pulaski, Randolph, Richland, Saline, St. Clair (part), Union, Wabash, Washington, Wayne, White, and Williamson

Elections

2012

Main article: United States House of Representatives elections in Illinois, 2012

Illinois's 12th congressional district election results, 2012 ^[5]

Party		Candidate	Votes	%
	Democratic	William Enyart	157,000	51.7
	Republican	Jason Plummer	129,902	42.7
	Green	Paula Bradshaw	17,045	5.6
	Write-in	Shon-Tiyon Horton	2	0.0
Total votes			303,947	100

2014

Illinois's 12th congressional district, 2014 ^[6]

Party		Candidate	Votes	%
	Republican	Mike Bost	110,038	52.5
	Democratic	William Enyart (incumbent)	87,860	41.9
	Green	Paula Bradshaw	11,840	5.6
Total votes			209,738	100.0
	Republican gain from Democratic

2016

Illinois's 12th congressional district, 2016 ^[7]

Party		Candidate	Votes	%
	Republican	Mike Bost (incumbent)	169,976	54.3
	Democratic	C.J. Baricevic	124,246	39.7
	Green	Paula Bradshaw	18,780	6.0
Total votes			313,002	100.0
	Republican hold

2018

Illinois's 12th congressional district, 2018 ^[8]

Party		Candidate	Votes	%
	Republican	Mike Bost (incumbent)	134,884	51.6
	Democratic	Brendan Kelly	118,724	45.4
	Green	Randall Auxier	7,935	3.0
Total votes			261,543	100.0
	Republican hold

2020

Illinois's 12th congressional district, 2020 ^{[9] [10]}

Party		Candidate	Votes	%	±%
	Republican	Mike Bost (incumbent)	194,839	60.43	+8.86%
	Democratic	Raymond Lenzi	127,577	39.57	−5.82%
Total votes			322,416	100.0
	Republican hold

2022

Illinois's 12th congressional district, 2022

Party		Candidate	Votes	%
	Republican	Mike Bost (incumbent)	218,379	75.00
	Democratic	Chip Markel	72,791	25.00
	Write-in		1	0.00
Total votes			291,171	100.0
	Republican hold

2024

Illinois's 12th congressional district, 2024

Party		Candidate	Votes	%	±%
	Republican	Mike Bost (incumbent)	272,754	74.19	−0.81%
	Democratic	Brian Roberts	94,875	25.81	+0.81%
Total votes			367,629	100.0
	Republican hold

See also

• Illinois's congressional districts
• List of United States congressional districts

• United States portal
• Illinois portal

References

1. "My Congressional District".
2. "2022 Cook PVI: District Map and List". Cook Political Report. July 12, 2022. Retrieved January 10, 2023.
3. Illinois Congressional District 12 Archived January 26, 2017, at the Wayback Machine , Illinois Board of Elections
4. https://davesredistricting.org/maps#viewmap::8a4586ad-4c58-489b-828c-4477cfd0ce88
5. "2012 General Election Official Vote Totals" (PDF). Illinois State Board of Elections. Archived from the original (PDF) on November 19, 2013. Retrieved March 26, 2012.
6. "Illinois General Election 2014". Illinois State Board of Elections. November 4, 2014. Retrieved December 18, 2014.
7. "Illinois General Election 2016". Illinois State Board of Elections. November 8, 2016. Archived from the original on March 27, 2019. Retrieved December 13, 2016.
8. "2018 General Election Official Vote Totals Book".
9. "Election Results 2020 GENERAL ELECTION". Illinois State Board of Elections. December 4, 2020. Retrieved December 4, 2020.
10. "Illinois 2020 Election Results". Chicago Sun-Times . November 20, 2020. Retrieved November 20, 2020.

Sources

• Martis, Kenneth C. (1989). The Historical Atlas of Political Parties in the United States Congress. New York: Macmillan Publishing Company.
• Martis, Kenneth C. (1982). The Historical Atlas of United States Congressional Districts. New York: Macmillan Publishing Company.
• Congressional Biographical Directory of the United States 1774–present, bioguide.congress.gov; accessed November 10, 2016.

External links

• Washington Post page on the 12th District of Illinois
• U.S. Census Bureau - 5th District Fact Sheet Archived September 28, 2011, at the Wayback Machine

38°00′N89°15′W / 38.000°N 89.250°W / 38.000; -89.250