Skip to content
LocateCongress

Illinois's 14th Congressional District (IL-14)

Last updated · 7 sources

Lauren Underwood, a Democrat, has represented the district since 2019.

The district includes all of Kendall County and parts of LaSalle, DeKalb, Will, Bureau, Kane, and Putnam counties.

According to the Census Bureau's 2020–2024 American Community Survey 5-year estimates, the district has a population of 763,833, a median household income of $95,523, and a median age of 37.3. Of residents 25 and older, 34.2% hold a bachelor's degree or higher.

Representative

Official portrait of Lauren Underwood, U.S. Representative for Illinois's 14th District
Lauren Underwood

U.S. Representative for Illinois's 14th District · Democrat

ProfileSchedule this week

2026 election

Underwood has filed with the FEC to run for this seat in 2026.

5 candidates have reported raising money for the 2026 IL-14 race to the FEC.

Election Day: Tuesday, November 3, 2026

Candidates for IL-14 in 2026 who reported raising money to the FEC
CandidatePartyRaisedCash on handThrough
Lauren Underwood (incumbent)Democratic$2,417,082$1,106,564Jun 30
James Thomas MarterRepublican$140,848$31,898Jun 30
Gary VicianRepublican$68,395-$24,998Jun 30
Jed DavisRepublican$22,725$0Mar 31
Roman Gael ValencianoDemocratic$590$35Sep 30, 2025

Includes primary candidates; FEC filings do not record primary results. FEC race page

District profile

Population
763,833
Median household income
$95,523
Median age
37.3
Bachelor's degree or higher
34.2%

Census Bureau, 2020–2024 American Community Survey 5-year estimates

Places and ZIP codes

IL-14 covers all of 62 places, the largest Plainfield, DeKalb, and Oswego, and part of 16 more places, the largest Aurora, Naperville, and Joliet.

Arlington, Aurora (part), Big Rock, Bolingbrook (part), Boulder Hill, Bureau Junction, Cedar Point, Cherry, Cortland, Crest Hill, Crystal Lawns, Dalzell, Dayton, De Pue, DeKalb, Dover (part), Earlville, Elwood (part), Fairmont, Granville, Harding, Hennepin (part), Hinckley, Hollowayville, Ingalls Park, Joliet (part), Ladd, Lake Holiday, LaSalle, Lee (part), Leland, Lisbon, Lockport (part), Malden, Malta, Maple Park (part), Mark, Marseilles (part), Mendota, Millbrook, Millington, Minooka (part), Montgomery, Naperville (part), Naplate, Newark, North Utica, Oglesby, Oswego, Ottawa, Peru, Plainfield, Plano, Plattville, Prestbury, Preston Heights, Ridgewood, Rockdale, Romeoville (part), Sandwich, Seatonville, Seneca (part), Serena, Shabbona, Sheridan, Shorewood, Somonauk, Spring Valley, Standard, Sugar Grove (part), Sunnyland, Sycamore, Tonica (part), Triumph, Troy Grove, Waterman, Wedron, Yorkville

IL-14 covers all of 42 ZIP codes and part of 44 more.

60111 (part), 60112, 60115 (part), 60119 (part), 60135 (part), 60145 (part), 60150 (part), 60151 (part), 60178 (part), 60403, 60404, 60421 (part), 60431, 60432 (part), 60433 (part), 60435, 60436, 60439 (part), 60441 (part), 60442 (part), 60446 (part), 60447 (part), 60450 (part), 60490 (part), 60502 (part), 60503, 60504 (part), 60505 (part), 60506 (part), 60511, 60512, 60518 (part), 60520, 60530 (part), 60531, 60536, 60537, 60538, 60541 (part), 60542 (part), 60543, 60544 (part), 60545, 60548, 60549, 60550, 60551, 60552, 60554 (part), 60556, 60557, 60560, 60564 (part), 60565 (part), 60585, 60586, 61068 (part), 61301, 61312, 61315, 61316, 61317, 61320, 61322, 61323 (part), 61326 (part), 61327 (part), 61329, 61330 (part), 61337, 61340, 61341 (part), 61342 (part), 61348 (part), 61350 (part), 61354 (part), 61356 (part), 61359, 61360 (part), 61362, 61363, 61368 (part), 61370 (part), 61371, 61372, 61373

Illinois senators

Neighboring districts

  • IL-1 · Jonathan Jackson (D)
  • IL-11 · Bill Foster (D)
  • IL-16 · Darin LaHood (R)

Sources