Illinois's 16th congressional district

Illinois's 16th congressional district
Interactive map of district boundaries since January 3, 2023
Representative	Darin LaHood R–Peoria
Area	9,030.5 sq mi (23,389 km2)
Distribution	71% urban 29% rural
Population (2023)	755,171
Median household income	$80,425[1]
Ethnicity	84.8% White 6.6% Hispanic 3.7% Two or more races 2.3% Asian 2.2% Black 0.4% other
Cook PVI	R+11[2]

The 16th congressional district of Illinois is represented by Republican

After the 2010 census, the 16th was significantly redrawn for the first time in decades. It was pushed to the east to include the southwestern exurbs of the Chicago metropolitan area, stretching from the Wisconsin border to the Indiana border. While it still included most of Rockford's suburbs, half of Rockford itself (mainly the Democratic-leaning western portion of the city) was shifted to the 17th district. The district was significantly redrawn again after the 2020 census, essentially merging the more Republican portions of the old 16th and 18th districts.

• Rockford – 148,655
• Peoria – 113,150
• Bloomington – 78,680
• Normal – 52,736
• Pekin – 31,731
• Belvidere – 25,339
• Loves Park – 23,397
• Machesney Park – 22,950
• East Peoria – 22,484
• Morton – 17,117
• Washington – 16,071
• Dixon – 15,274
• Morris – 14,163
• Channahon – 13,383
• Streator – 12,500
• Pontiac – 11,150
• Roscoe – 10,983

• Harvard – 9,469
• Rochelle – 9,446
• South Beloit – 7,989
• Rockton – 7,863
• Princeton – 7,832
• Geneseo – 6,539
• Chillicothe – 6,128
• Peoria Heights – 5,908
• Coal City – 5,705
• Eureka – 5,227
• Candlewick Lake – 5,115
• Poplar Grove – 5,049
• Creve Coeur – 4,934
• Marseilles – 4,845
• West Peoria – 4,263
• Dwight – 4,032
• Metamora – 3,904
• Byron – 3,784
• Oregon – 3,604
• Le Roy – 3,512
• Gibson City – 3,475
• Germantown Hills – 3,412
• Galena – 3,308
• Cherry Valley – 2,905
• Mount Morris – 2,861
• Heyworth – 2,791
• Lena – 2,772
• El Paso – 2,756
• Diamond – 2,640
• Marquette Heights – 2,541
• Davis Junction – 2,512

Due to the 2020 redistricting, this district will shift to encompass most of central Northern Illinois, including covering the majority of the Wisconsin-Illinois border. The district takes in Jo Daviess, Ogle, Lee, Stark, Marshall, and Grundy Counties; most of Winnebago, Boone, Bureau, Henry, and McLean Counties; half of Stephenson, Peoria, Tazewell, Putnam, and Livingston Counties; and part of DeKalb and Ford Counties.

Winnebago County is split between this district and the 17th district. They are partitioned by West State Road, West State St, School St, Monroe St, Victory St, North Springfield Ave, Auburn St, North Central Ave, West Riverside Blvd, Eagle Dr, Soo Line Railroad, Park Ridge Rd, East Dr, River Ln, N 2nd St, Windsor Rd, N Alpine Rd, E Riverside Blvd, Forest Hills Rd, Pepper Dr, Cardamon Ln, Sage Dr, Gingeridge Ln, Applewood Ln, Windsor Rd/Broadcast Parkway, McFarland Rd, Harlem Rd, Illinois Highway 39, Keith Creek, Olde Creek Rd, N Trainer Rd, Spring Brook Rd, N Mulford Rd, Spring Creek Rd, Delcy Dr, Taliesen Ln/Jonquil Rd, Arbutus Rd, Saratoga Ln, Norwich Dr, Monticello Ln, Guilford Rd, Mauh-Nah-Tee-See, Inverness Dr, Donna Dr, Garrett Ln, Triton Ave, Apawamis Way E, Shiloh Rd, N Perryville Rd, Argus Dr, Deane Dr, US Highway 20, S Trainer Rd, Laurel Cherry Dr, Stony Creek Way, Newburg Rd, Homewood Dr, Dorchester Dr, Villanova Dr, Highland Ter, Wichita Dr, Capetown Ave, Charles St, S Mulford Rd, Forest Trail Dr, Samuelson Rd, 35th St, Tesa Rd, Sonja Ln, Lockout Dr, Houston Rd, Scarlet Oak Rd, Fruitland Dr, 20th St, Mobile Home Ave, 11th St, Falcon Rd, Beltline Rd, Kishwaukee Rd, Rock River, S Springfield Ave, Prairie Rd, and Tipple Rd. The 15th district takes in the communities of South Beloit, Roscoe, New Milford, Machesney Park, Rockton, Lake Summerset (shared with Stephenson County), Durand, Pecatonica, Westlake Village, Argyle (shared with Boone County), and Cherry Valley; most of Loves Park; and part of Rockford (shared with Ogle County).

Boone County is split between this district and the 11th district. They are partitioned by Orth Rd, Poplar Grove Rd, Woodstock Rd, McKinley Ave, Squaw Prairie Rd, Beloit Rd, Illinois Business Route 20, Kishwaukee River, Wynwood Dr, N Appleton Rd, S Appleton Rd, Illinois Highway 5, and Stone Quarry Rd. The 11th district takes in the communities of Candlewick Lake, Capron, Argyle (shared with Winnebago County), Caledonia, and Timberlane; most of Belvidere; and part of Poplar Grove.

Bureau County is split between this district and the 14th district. They are partitioned by Illinois Highway 26, US Highway 180, 2400 St E, and 2400 Ave N. The 16th district takes in the municipalities of Princeton, Wyanet, Buda, Sheffield, Mineral, Neponset, New Bedford, Manlius, Walnut, Tiskilwa, Ohio, Dover, and La Moille.

Henry County is split between this and the 17th district. They are partitioned on the northwest side by Shaffer Creek, Oakwood Cir, Oakmont Dr, Oakwood Country Club, Glenwood Rd, US Highway 6, E 450th St, Illinois Highway 280, Green River Rd, and Kings Dr. They are partitioned on the southeast side by E 1770th St, N 650th Ave/N 570th Ave, Timber Rd, E 2400th St, and N 1200 St. The 16th district takes in the communities of Cambridge, Geneseo, Orion, Atkinson, Annawan, Lynn Center, Ophiem, Alpha, Cleveland, Osco, Andover, Woodhull, Bishop Hill, Nekoma, and Hooppole.

McLean County is split between this district and the 17th district. They are partitioned by E 1000 North Rd, N 250 East Rd, E 1200 North Rd, Middle Fork Sugar Creek, E 1250 North Rd, N 750 East Rd, E 1300 North Rd, E 1280 North Rd, N 900 East Rd, E 1350 North Rd, E 1400 North Rd, N 1100 East Rd, N Rivian Motorway, King Mill Creek, Illinois Highway 74, Hovey Ave, S Cottage Ave, Gregory St, N Adelaide St, W Raab Rd, N Towanda Ave, E Shelbourne Dr, Old Route 66, Hershey Rd, E College Ave, Illinois Highway 55, Sugar Creek, General Electric Rd, Rainbow Ave, Mill Creek Rd, Clearwater Ave, Newcastle Dr, Illinois Highway 9, S Towanda Barnes Rd, Central Illinois Airport, Winchester Dr, S Hershey Rd, E Oakland Ave, S Veterans Parkway, S Mercer Ave, Norfolk and Southern Railroad, Rhodes Ln, E Hamilton Rd, S Morris Ave, Six Points Rd, W Oakland Ave, Fox Creek Rd, Crooked Creek Rd, Carrington Ln, and N 1200 East Rd. The 16th district takes in the communities of Lexington, Le Roy, Chenoa, El Paso (shared with Woodford County), Hudson, Gridley, Anchor, Saybrook, Bellflower, Colfax, Arrowsmith, Cooksville, Ellsworth, Towanda, Downs, Heyworth, Carlock, Twin Grove, Danvers, and Stanford; northern Normal; and part of Bloomington.

Stephenson County is split between this district and the 17th district. They are partitioned by Daws Rd, Howardsville Rd, Cedarville Rd, N Fawver Rd, and Maize Rd. The 16th district takes in the communities of Davis, Dakota, Orangeville, Winslow, Rock City, and Lake Summerset (shared with Winnebago County); northern Cedarville; and part of Lena.

Peoria County is split between this district and the 17th district. They are partitioned by W Gerber Rd/W Rosenbohm Rd, W Southport Rd, BN & SF Railroad, W Southport Rd, N Townhouse Rd, W Cottonwood Rd, N McAllister Rd, W Greengold Rd, W Farmington Rd, N Kickapoo Creek Rd, Saint Mary's Cemetery, N Swords Ave, N Northcrest Dr, C & NW Railroad, Weaverridge Golf Club, W Charter Oak Rd, Illinois Highway 6, W War Memorial Dr, N Allen Rd, W Northmoor Rd, Big Hollow Creek, West Imperial Dr, West Willow Knolls Dr, North University St, Manning Park, West Teton Dr, Illinois Highway 40, North Prospect Rd, East Prospect Ln, North Montclair Ave, East Euclid Ave, North Grandview Dr, Forest Park Nature Center, Forest Park Apartments, North Galena Rd, Illinois Highway 29, and Forest Park Riverfront-Longshore. The 16th district takes in the communities of Chillicothe, Brimfield, Princeville, Dunlap, Rome, Mossville; northern Peoria; and part of Peoria Heights (shared with Woodford County), West Peoria, Bellevue, and Norwood.

Tazewell County is split between this district and the 17th district. They are partitioned by Illinois River, S 3rd St, Prince St, Elm St, Maple St, Mechanic St, Koch St, 5th St, Illinois Central Railroad, Townline Rd, Highway I-55, Illinois Highway 122, Indian Creek, Southwest Lincoln St, Southeast Main St, Hopedale Rd, Springtown Rd, Mackinaw Rd, and Lagoon Rd. The 16th district takes in the communities of East Peoria, Washington, Morton, Hopedale, Minier, North Pekin, Heritage Lake, Mackinaw, Deer Park (shared with Woodford County), Creve Coeur, Marquette Heights, Goodfield (shared with Woodford County), and Tremont; most of Pekin; and part of South Pekin.

Putnam County is split between this district and the 17th district. They are partitioned by Illinois River, S Front St, E High St, N 2nd St, E Court St, E Mulberry St, N 3rd St, N 4th St, N 6th St, E Sycamore St, S 5th St, Coffee Creek, Illinois Highway 26, and N 600th Ave. The 16th district takes in the communities of McNabb and Magnolia.

Livingston County is split between this district and the 2nd district. They are partitioned by N 1800 Rd East, E 1550 Rd North, N 1600 Rd East, E 1500 Rd North, N 1500 Rd East, W Reynolds St, Highway 55, The Slough, E 1830 Rd North, Old IL-66 South, N 1700 Rd East, N 2125 Rd North, and N 1800 Rd East. The 16th district takes in the communities of Cornell, Flanagan, and Long Point; and part of Pontiac.

DeKalb County is split between this district, the 11th district, and the 14th district. They are partitioned by Myelle Rd, Bass Line Rd, Illinois Highway 23, Whipple Rd, Plank Rd, Swanson Rd, and Darnell Rd. The 16th district takes in the municipality of Kirkland.

Ford County is split between this district and the 2nd district. They are partitioned by E 900N Rd, N Melvin St, E 8th St, and N 500E Rd. The 16th district takes in the municipality of Gibson City.

McHenry County is split between this district and the 9th district, 10th district, and 11th district. The 16th district takes in the communities of Big Foot Prairie, Alden, Harvard, Lawrence, and Chemung.

LaSalle County is split between this district and the 14th district. The 16th district takes in the communities of Ransom Grand Ridge, Kangley, Streator (shared with Livingston County), Leonore, Lostant, Rutland, and Dana; and part of Seneca, Marseilles, and Tonica.

Member	Party	Years	Cong ress	Electoral history	District location
District created March 4, 1873
James S. Martin (Salem)	Republican	March 4, 1873 – March 3, 1875	43rd	Elected in 1872 . Lost re-election.
William A. J. Sparks (Carlyle)	Democratic	March 4, 1875 – March 3, 1883	44th 45th 46th 47th	Re-elected in 1880 . Retired.
Aaron Shaw (Olney)	Democratic	March 4, 1883 – March 3, 1885	48th	Elected in 1882 . Retired.
Silas Z. Landes (Mount Carmel)	Democratic	March 4, 1885 – March 3, 1889	49th 50th	Re-elected in 1886 . Retired.
George W. Fithian (Newton)	Democratic	March 4, 1889 – March 3, 1895	51st 52nd 53rd	Re-elected in 1892. Redistricted to the 19th district and lost re-election there.
Finis E. Downing (Virginia)	Democratic	March 4, 1895 – June 5, 1896	54th	Elected in 1894. Lost contested election.
John I. Rinaker (Carlinville)	Republican	June 5, 1896 – March 3, 1897	54th	Won contested election . Lost re-election.
William H. Hinrichsen (Jacksonville)	Democratic	March 4, 1897 – March 3, 1899	55th	Elected in 1896 . Retired.
William E. Williams (Pittsfield)	Democratic	March 4, 1899 – March 3, 1901	56th	Elected in 1898 . Retired.
Thomas J. Selby (Hardin)	Democratic	March 4, 1901 – March 3, 1903	57th	Elected in 1900 . Retired.
Joseph V. Graff (Peoria)	Republican	March 4, 1903 – March 3, 1911	58th 59th 60th 61st	Redistricted from the Re-elected in 1908 . Lost re-election.
Claude U. Stone (Peoria)	Democratic	March 4, 1911 – March 3, 1917	62nd 63rd 64th	Re-elected in 1914 . Lost re-election.
Clifford C. Ireland (Peoria)	Republican	March 4, 1917 – March 3, 1923	65th 66th 67th	Re-elected in 1920 . Lost renomination.
William E. Hull (Peoria)	Republican	March 4, 1923 – March 3, 1933	68th 69th 70th 71st 72nd	Re-elected in 1930 . Lost renomination.
Everett Dirksen (Pekin)	Republican	March 4, 1933 – January 3, 1949	73rd 74th 75th 76th 77th 78th 79th 80th	Re-elected in 1946 . Retired.
Leo E. Allen (Galena)	Republican	January 3, 1949 – January 3, 1961	81st 82nd 83rd 84th 85th 86th	Redistricted from the Re-elected in 1958 . Retired.
John B. Anderson (Rockford)	Republican	January 3, 1961 – January 3, 1981	87th 88th 89th 90th 91st 92nd 93rd 94th 95th 96th	Re-elected in 1978. Retired to run for U.S. President .
Lynn Morley Martin (Loves Park )	Republican	January 3, 1981 – January 3, 1991	97th 98th 99th 100th 101st	Re-elected in 1988. Retired to run for U.S. Senator .
John W. Cox Jr. (Galena)	Democratic	January 3, 1991 – January 3, 1993	102nd	Elected in 1990 . Lost re-election.
Don Manzullo (Egan)	Republican	January 3, 1993 – January 3, 2013	103rd 104th 105th 106th 107th 108th 109th 110th 111th 112th	Re-elected in 2002 Re-elected in 2004 Re-elected in 2006 Re-elected in 2008 Re-elected in 2010 Lost renomination.	1993–2003 [data missing]
					2003–2013
Adam Kinzinger (Channahon)	Republican	January 3, 2013 – January 3, 2023	113th 114th 115th 116th 117th	Redistricted from the 11th district and re-elected in 2012. Re-elected in 2014. Re-elected in 2016. Re-elected in 2018. Re-elected in 2020. Retired.	2013–2023
Darin LaHood (Peoria)	Republican	January 3, 2023 – present	118th 119th	Redistricted from the 18th district and re-elected in 2022. Re-elected in 2024.	2023–present

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

• 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

• Washington Post page on the 16th District of Illinois
• U.S. Census Bureau - 16th District Fact Sheet Archived July 17, 2011, at the Wayback Machine