The 12th congressional district of

Illinois Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. It borders on Lake Michigan to its northeast, the Mississippi River to its west, and the Wabash River, Wabash and Ohio River, Ohio rivers to its ...

is a

congressional district Congressional districts, also known as electoral districts in other nations, are divisions of a larger administrative region that represent the population of a region in the larger congressional body. Countries with congressional districts includ ...

in the southern part of

U.S. The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 states and a federal capital district, Washington, D.C. The 48 contiguous ...

state of

. It has been represented by Republican

Mike Bost Michael Joseph Bost ( ; born December 30, 1960) is an American politician. A member of the Republican Party (United States), Republican Party, he has served as the U.S. representative for Illinois's 12th congressional district since 2015. From 19 ...

since 2015. With a

Cook Partisan Voting Index The Cook Partisan Voting Index, abbreviated PVI or CPVI, is a measurement of how partisan a U.S. congressional district or U.S. state is. This partisanship is indicated as lean towards either the Republican Party or the Democratic Party, com ...

of R+22, it is the most Republican district in Illinois.

History

2011 redistricting

The district covers parts of

Madison Madison may refer to: People * Madison (name), a given name and a surname * James Madison (1751–1836), fourth president of the United States * Madison (footballer), Brazilian footballer Places in the United States Populated places * Madi ...

and St. Clair counties, and all of

Alexander Alexander () is a male name of Greek origin. The most prominent bearer of the name is Alexander the Great, the king of the Ancient Greek kingdom of Macedonia who created one of the largest empires in ancient history. Variants listed here ar ...

Franklin Franklin may refer to: People and characters * Franklin (given name), including list of people and characters with the name * Franklin (surname), including list of people and characters with the name * Franklin (class), a member of a historic ...

Hamilton Hamilton may refer to: * Alexander Hamilton (1755/1757–1804), first U.S. Secretary of the Treasury and one of the Founding Fathers of the United States * ''Hamilton'' (musical), a 2015 Broadway musical by Lin-Manuel Miranda ** ''Hamilton'' (al ...

Jackson Jackson may refer to: Places Australia * Jackson, Queensland, a town in the Maranoa Region * Jackson North, Queensland, a locality in the Maranoa Region * Jackson South, Queensland, a locality in the Maranoa Region * Jackson oil field in Durham, ...

, Jefferson,

Monroe Monroe or Monroes may refer to: People and fictional characters * Monroe (surname) * Monroe (given name) * James Monroe, 5th President of the United States * Marilyn Monroe, actress and model Places United States * Monroe, Arkansas, an unincorp ...

Perry Perry or pear cider is an alcoholic beverage made from fermented pears, traditionally in England (particularly Gloucestershire, Herefordshire, and Worcestershire), parts of South Wales, France (especially Normandy and Anjou), Canada, Austral ...

, Pulaski,

Randolph Randolph may refer to: Places In the United States * Randolph, Alabama, an unincorporated community * Randolph, Arizona, a populated place * Randolph, California, a village merged into the city of Brea * Randolph, Illinois, an unincorporated com ...

, Union and Williamson counties, as of the 2011 redistricting which followed the 2010 census. All or parts of Belleville,

Cahokia Cahokia Mounds ( 11 MS 2) is the site of a Native American city (which existed 1050–1350 CE) directly across the Mississippi River from present-day St. Louis. The state archaeology park lies in south-western Illinois between East St. L ...

, Carbondale, Collinsville, East St. Louis, Granite City, Herrin,

Marion Marion or MARION may refer to: Arts and entertainment *Marion (band), a British alternative rock group * ''Marion'' (miniseries), a 1974 miniseries * ''Marion'' (1920 film), an Italian silent film * ''Marion'' (2024 film), a UK short People a ...

, Mt. Vernon, O'Fallon, Shiloh and

Swansea Swansea ( ; ) is a coastal City status in the United Kingdom, city and the List of urban areas in the United Kingdom, second-largest city of Wales. It forms a Principal areas of Wales, principal area, officially known as the City and County of ...

are included.Illinois Congressional District 12
, Illinois Board of Elections The representatives for these districts were elected in the 2012 primary and general elections, and the boundaries became effective on January 5, 2013.

Composition

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 *

– 16,855 * Fairview Heights – 16,706 *

Mount Vernon Mount Vernon is the former residence and plantation of George Washington, a Founding Father, commander of the Continental Army in the Revolutionary War, and the first president of the United States, and his wife, Martha. An American landmar ...

– 14,600 * Shiloh – 14,098 * Herrin – 12,352 * Effingham – 12,252 * Centralia – 12,182 *

Waterloo Waterloo most commonly refers to: * Battle of Waterloo, 1815 battle where Napoleon's French army was defeated by Anglo-allied and Prussian forces * Waterloo, Belgium Waterloo may also refer to: Other places Australia * Waterloo, New South Wale ...

– 11,013 * Columbia – 10,999

2,500 to 10,000 people

Mascoutah Mascoutah is a city in St. Clair County, Illinois, United States. The population was 8,754 at the 2020 census. It is part of the Metro East region of Greater St. Louis. The city was named for the Mascoutens, a tribe of Algonquian-speaking Na ...

– 8,754 * Olney – 8,701 *

Harrisburg Harrisburg ( ; ) is the List of capitals in the United States, capital city of the Commonwealth (U.S. state), U.S. commonwealth of Pennsylvania and the county seat, seat of Dauphin County, Pennsylvania, Dauphin County. With a population of 50, ...

– 8,219 *

Chester Chester is a cathedral city in Cheshire, England, on the River Dee, Wales, River Dee, close to the England–Wales border. With a built-up area population of 92,760 in 2021, it is the most populous settlement in the borough of Cheshire West an ...

– 7,640 *

Salem Salem may refer to: Places Canada * Salem, Ontario, various places Germany * Salem, Baden-Württemberg, a municipality in the Bodensee district ** Salem Abbey (Reichskloster Salem), a monastery * Salem, Schleswig-Holstein Israel * Salem (B ...

– 7,282 * West Frankfort – 7,275 *

Robinson Robinson may refer to: People and names * Robinson (name) Fictional characters * Robinson Crusoe, the main character, and title of a novel by Daniel Defoe, published in 1719 Geography * Robinson projection, a map projection used since the 19 ...

– 7,150 *

Murphysboro Murphysboro is a city in and the county seat of Jackson County, Illinois, United States. The population was 7,093 at the 2020 census. The city is part of the Metro Lakeland area. The mayor of Murphysboro is Will Stephens. The government consist ...

– 7,093 *

Mount Carmel Mount Carmel (; ), also known in Arabic as Mount Mar Elias (; ), is a coastal mountain range in northern Israel stretching from the Mediterranean Sea towards the southeast. The range is a UNESCO biosphere reserve. A number of towns are situat ...

– 7,015 * Benton – 6,709 *

Metropolis A metropolis () is a large city or conurbation which is a significant economic, political, and cultural area for a country or region, and an important hub for regional or international connections, commerce, and communications. A big city b ...

– 5,969 * Carterville – 5,848 * Du Quoin – 5,827 * Pinckneyville – 5,066 * Fairfield – 4,883 * Carmi – 4,865 *

Flora Flora (: floras or florae) is all the plant life present in a particular region or time, generally the naturally occurring (indigenous (ecology), indigenous) native plant, native plants. The corresponding term for animals is ''fauna'', and for f ...

– 4,803 *

Lebanon Lebanon, officially the Republic of Lebanon, is a country in the Levant region of West Asia. Situated at the crossroads of the Mediterranean Basin and the Arabian Peninsula, it is bordered by Syria to the north and east, Israel to the south ...

– 4,691 * Breese – 4,641 * Freeburg – 4,582 * Caseyville – 4,400 *

Anna Anna may refer to: People Surname and given name * Anna (name) Mononym * Anna the Prophetess, in the Gospel of Luke * Anna of East Anglia, King (died c.654) * Anna (wife of Artabasdos) (fl. 715–773) * Anna (daughter of Boris I) (9th–10th c ...

– 4,303 * Lawrenceville – 4,164 *

Sparta Sparta was a prominent city-state in Laconia in ancient Greece. In antiquity, the city-state was known as Lacedaemon (), while the name Sparta referred to its main settlement in the Evrotas Valley, valley of Evrotas (river), Evrotas rive ...

– 4,095 * Millstadt – 4,071 * Smithton – 4,006 *

Marshall Marshall may refer to: Places Australia *Marshall, Victoria, a suburb of Geelong, Victoria ** Marshall railway station Canada * Marshall, Saskatchewan * The Marshall, a mountain in British Columbia Liberia * Marshall, Liberia Marshall Is ...

– 3,947 * Red Bud – 3,804 * Eldorado – 3,743 *

Scott AFB Scott Air Force Base is a United States Air Force base in St. Clair County, Illinois, near Belleville and O'Fallon, east-southeast of downtown St. Louis. Originally Scott Field, it was one of 32 Air Service training camps established aft ...

– 3,612 * New Baden – 3,428 * Johnston City – 3,384 * Carlyle – 3,253 *

Nashville Nashville, often known as Music City, is the capital and List of municipalities in Tennessee, most populous city in the U.S. state of Tennessee. It is the county seat, seat of Davidson County, Tennessee, Davidson County in Middle Tennessee, locat ...

– 3,105 *

Newton Newton most commonly refers to: * Isaac Newton (1642–1726/1727), English scientist * Newton (unit), SI unit of force named after Isaac Newton Newton may also refer to: People * Newton (surname), including a list of people with the surname * ...

– 2,777 *

Christopher Christopher is the English language, English version of a Europe-wide name derived from the Greek language, Greek name Χριστόφορος (''Christophoros'' or ''Christoforos''). The constituent parts are Χριστός (''Christós''), "Jesus ...

– 2,697 * Trenton – 2,690 * McLeansboro – 2,675 *

Sumner Sumner may refer to: Places Antarctica * Mount Sumner, a mountain in the Rare Range, Antarctica * Sumner Glacier, southern Graham Land, Antarctica Australia * Sumner, Queensland, a suburb of Brisbane New Zealand * Sumner, New Zealand, a seasi ...

– 2,631 Following the 2020 redistricting, this district will go from covering southeastern Illinois to encompassing the entirety of

Southern Illinois Southern Illinois is a region of the U.S. state of Illinois comprising the southern third of the state, principally south of Interstate 70. Part of downstate Illinois, it is bordered by the two List of U.S. rivers by discharge, most voluminous ri ...

, spanning the Illinois-Missouri-Kentucky-Indiana border. It will take in

Clinton Clinton is an English toponymic surname, indicating one's ancestors came from English places called Glympton or Glinton.Hanks, P. & Hodges, F. ''A Dictionary of Surnames''. Oxford University Press, 1988 Clinton has also been used as a given nam ...

, Union,

, Pulaski, Massac,

Johnson Johnson may refer to: People and fictional characters *Johnson (surname), a common surname in English * Johnson (given name), a list of people * List of people with surname Johnson, including fictional characters *Johnson (composer) (1953–2011) ...

, Williamson, Jefferson,

Clay Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolinite, ). Most pure clay minerals are white or light-coloured, but natural clays show a variety of colours from impuriti ...

, Effingham, Wayne,

Saline Saline may refer to: Salt-related * Saline (medicine), a liquid with salt content to match the human body * Saline water, non-medicinal salt water * Saline, a historical term (especially American) for a salt works or saltern Places United States ...

Pope The pope is the bishop of Rome and the Head of the Church#Catholic Church, visible head of the worldwide Catholic Church. He is also known as the supreme pontiff, Roman pontiff, or sovereign pontiff. From the 8th century until 1870, the po ...

, Hardin, Gallatin,

White White is the lightest color and is achromatic (having no chroma). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully (or almost fully) reflect and scatter all the visible wa ...

, Edwards, Wabash, Richland,

Lawrence Lawrence may refer to: Education Colleges and universities * Lawrence Technological University, a university in Southfield, Michigan, United States * Lawrence University, a liberal arts university in Appleton, Wisconsin, United States Preparator ...

Jasper Jasper, an aggregate of microgranular quartz and/or cryptocrystalline chalcedony and other mineral phases, is an opaque, impure variety of silica, usually red, yellow, brown or green in color; and rarely blue. The common red color is due to ...

, Crawford,

Cumberland Cumberland ( ) is an area of North West England which was historically a county. The county was bordered by Northumberland to the north-east, County Durham to the east, Westmorland to the south-east, Lancashire to the south, and the Scottish ...

, and

Clark Clark is an English language surname with historical links to England, Scotland, and Ireland, ultimately derived from the Latin ''clericus'' meaning "scribe", "secretary" or a scholar within a religious order, referring to someone who was educated ...

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

, New Athens, Marissa, Millstadt, Smithton, Freeburg, Summerfield,

, Rentchler, Floraville,

Paderborn Paderborn (; Westphalian language, Westphalian: ''Patterbuorn'', also ''Paterboärn'') is a city in eastern North Rhine-Westphalia, Germany, capital of the Paderborn (district), Paderborn district. The name of the city derives from the river Pade ...

Fayetteville Fayetteville may refer to: *Fayetteville, Alabama *Fayetteville, Arkansas ** The Fayetteville Formation *Fayetteville, Georgia *Fayetteville, Illinois *Fayetteville, Indiana *Fayetteville, Washington County, Indiana *Fayetteville, Missouri *Fayette ...

, St. Libory,

Darmstadt Darmstadt () is a city in the States of Germany, state of Hesse in Germany, located in the southern part of the Frankfurt Rhine Main Area, Rhine-Main-Area (Frankfurt Metropolitan Region). Darmstadt has around 160,000 inhabitants, making it the ...

, and

Lenzburg Lenzburg is a town in the central region of the Switzerland, Swiss canton of Aargau and is the capital of the Lenzburg District. The town, founded in the Middle Ages, lies in the Seetal, Seetal valley, about 3 kilometres south of the Aare river. L ...

; 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 Ashmore is a village and civil parish in Dorset, England, southwest of Salisbury. There are grounds for believing Ashmore to be a Romano-British village which has survived without a break to the present day. The village is centred on a circ ...

Oakland Oakland is a city in the East Bay region of the San Francisco Bay Area in the U.S. state of California. It is the county seat and most populous city in Alameda County, with a population of 440,646 in 2020. A major West Coast port, Oakland is ...

Lerna In classical Greece, Lerna () was a region of springs and a former lake located in the municipality of the same name, near the east coast of the Peloponnesus, south of Argos. Even though much of the area is marshy, Lerna is located on a geogra ...

, Janesville (shared with Cumberland County), and

Trilla ''Trilla'' is the second studio album by American rapper Rick Ross. It was released on March 11, 2008, by Poe Boy Entertainment, Slip-n-Slide Records and Def Jam Recordings. It features guest appearances from R. Kelly, T-Pain, Trey Songz, You ...

; part of southern Mattoon; and part of Charleston.

Recent election results from statewide races

List of members representing the district

Elections

2012

2014

2016

2018

2020

2022

2024

References

Sources

* *
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 IllinoisU.S. Census Bureau - 5th District Fact Sheet
{{Coord, 38, 00, N, 89, 15, W, region:US-IL_dim:200000, display=title 12 Alexander County, Illinois Constituencies established in 1863 1863 establishments in Illinois