Illinois's 14th Congressional District

Illinois's 14th Congressional District is represented by Lauren Underwood (Democrat), who has held the seat since 2019. Underwood has an overall VoteSee report card grade of C, voted in 100% of roll-call votes on bills this Congress, and votes with the Democratic majority 98% of the time. The district includes Joliet, Aurora, and Plainfield. It takes in all or part of 7 counties; the most populous parts are in Will County and Kendall County. About 764,000 people live in the district, and the median household income is $95,523.

Current Representative

Lauren Underwood (Democrat) has represented Illinois's 14th Congressional District since 2019.

VoteSee report card grade: C
Attendance in the 119th Congress: 100% of roll-call votes on bills
Votes with the Democrat majority: 98%

See Lauren Underwood's full voting record and issue positions →

2026 Election

U.S. House: Illinois 14th District

Winner: Lauren Underwood.

Incumbent Lauren Underwood is running for re-election. 2 candidates were on the Nov 3, 2026 ballot.

Lauren Underwood (Democratic), incumbent: raised $2.8M, $1.2M cash on hand; VoteSee report card C; 100% attendance; votes with the Democratic majority 98% of the time
James Marter (Republican): raised $214K, $38K cash on hand

Polls: No public polls

See the full 2026 race →

District Demographics

Population: 763,833
Median household income: $95,523
Median age: 37
Median home value: $280,800
Bachelor's degree or higher: 34.2%

Source: American Community Survey 2020–2024 5-year estimates, 119th Congress boundaries.

How Underwood Voted Recently

Yea on American Enrichment Deployment Act (Nov 9, 2026) — Passed
Yea on Nuclear REFUEL (Recycling Efficient Fuels Utilizing Expedited Licensing) Act (Nov 9, 2026) — Passed
Yea on Retire through Ownership Act (Sep 16, 2026) — Passed
Yea on Water Resources Development Act of 2026 (Sep 16, 2026) — Passed
Yea on Ratepayer Protection Act (Sep 16, 2026) — Passed

Breaks with the Democrat majority

Nay on National Fraud Enforcement Division Act of 2026 (Sep 16, 2026) — Passed
Nay on Continuing Appropriations Act, 2027 (Sep 1, 2026) — Passed
No on National Defense Authorization Act for Fiscal Year 2027 (Jul 21, 2026) — Agreed to

Who Held This Seat Before

Members of Congress who previously represented Illinois's 14th Congressional District. District lines are redrawn after each census, so earlier members may have represented a different area under this number.

Randy Hultgren — Republican (2011–2019)
Bill Foster — Democrat (2008–2011)
Denny Hastert — Republican (1987–2007)
John Grotberg — Republican (1985–1987)
Thomas Corcoran — Republican (1983–1985)
John Erlenborn — Republican (1965–1983)
Elmer Hoffman — Republican (1959–1965)
Russell Keeney — Republican (1957–1959)
Chauncey Reed — Republican (1949–1957)
Anton Johnson — Republican (1939–1949)
Chester Thompson — Democrat (1933–1939)
John Allen — Republican (1925–1933)

Where the District Is

Illinois's 14th Congressional District covers 1,975 square miles of land. Boundaries are for the current (119th) Congress.

Counties

Will County (part): 49% of residents
Kendall County: 18% of residents
DeKalb County (part): 12% of residents
LaSalle County (part): 12% of residents
Kane County (part): 9% of residents
Bureau County (part): 2% of residents
Putnam County (part): under 1% of residents

Largest communities

Joliet (part)
Aurora (part)
Plainfield
Naperville (part)
DeKalb
Romeoville (part)
Oswego
Yorkville