Richard J. Durbin
U.S. Senate
Members of Congress
Who Represents Illinois in Congress?
Illinois is represented in the U.S. Senate by Richard J. Durbin and Tammy Duckworth and holds 17 seats in the U.S. House. Every senator represents the whole state; each representative speaks for one district inside it, so most residents have three members of Congress in total — two senators and one representative.
U.S. Senators from Illinois
Democratic
Tammy Duckworth
U.S. Senate
U.S. Representatives from Illinois17 seats
Jonathan L. Jackson
1st district
Robin L. Kelly
2nd district
Delia C. Ramirez
3rd district
Jesús G. "Chuy" García
4th district
Mike Quigley
5th district
Sean Casten
6th district
Danny K. Davis
7th district
Raja Krishnamoorthi
8th district
Janice D. Schakowsky
9th district
Bradley Scott Schneider
10th district
Bill Foster
11th district
Mike Bost
12th district
Nikki Budzinski
13th district
Lauren Underwood
14th district
Mary E. Miller
15th district
Darin LaHood
16th district
Eric Sorensen
17th district
Not sure which district you live in?
A ZIP code can span more than one congressional district, so the only reliable lookup takes your full street address.
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Sources
Roster, party, district, and contact details from the public @unitedstates congress-legislators dataset, refreshed daily. District lookups go to the official House directory.
Illinois is represented in the U.S. Senate by Richard J. Durbin and Tammy Duckworth and holds 17 seats in the U.S. House. Every senator represents the whole state; each representative speaks for one district inside it, so most residents have three members of Congress in total — two senators and one representative.
The full Illinois delegation currently breaks down as 16 Democratics and 3 Republicans. Names, parties, and official contact links below come from the public congress-legislators dataset, which tracks appointments and special elections rather than only general-election results.
What senators and representatives actually do differently
Both vote on legislation, but the jobs are not symmetrical. Senators serve six-year staggered terms, represent the entire state, and hold powers the House does not have — confirming federal judges, Cabinet officers, and ambassadors, and ratifying treaties. Representatives serve two-year terms and answer to a single district, and the House alone can originate revenue bills and bring articles of impeachment. For a constituent, the practical difference is scale: a senator's office handles Illinois-wide concerns, while a House office is usually the faster route for casework involving a federal agency.
How to contact your member of Congress so it counts
Every member listed here has an official .gov site with a contact form and a Washington office phone number. Offices generally weight contact from verified constituents, so include your full address, and be specific — a bill number, a date, or a concrete agency problem gets logged more usefully than a general opinion. For a stuck passport, a delayed VA claim, or an IRS or Social Security problem, ask for "casework": staff can make a formal inquiry to the agency on your behalf, and that is often the fastest available remedy.
When these seats are next on the ballot
All 435 voting House seats are contested every two years, in every even-numbered year. Senate seats are staggered into three classes, so roughly a third of the Senate is up in each of those elections and a given state usually has at most one Senate race per cycle. The term-end year shown next to each member below is the year that seat is next scheduled to be contested. Vacancies from resignation or death are filled by special election in the House, and in most states by gubernatorial appointment in the Senate.
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Illinois Members of Congress — Frequently Asked Questions
- Who are the U.S. senators from Illinois?
- Richard J. Durbin and Tammy Duckworth represent Illinois in the U.S. Senate. Both were elected statewide and serve six-year terms, and each one represents every resident of Illinois rather than a particular district.
- How many representatives does Illinois have?
- Illinois has 17 U.S. representatives, each elected from a separate district, plus two U.S. senators — 19 members of Congress in total. House seats are reapportioned after each decennial census, so that number can change every ten years.
- How do I find out which district I live in?
- Enter your address at the House of Representatives' official lookup at house.gov/representatives/find-your-representative. A ZIP code alone is often not enough, because a single ZIP can span two or more districts — the official tool resolves the full street address, which is why Alto links to it rather than guessing from a ZIP.
- How do I contact my representative or senator?
- Use the official .gov link next to each member above, which leads to their contact form and Washington office phone. Include your full address so the office can verify you are a constituent. If your issue involves a federal agency — a delayed passport, a VA claim, Social Security — ask specifically for casework help rather than sending a general comment.
- Is this list of members of Congress up to date?
- It is refreshed daily from the public congress-legislators dataset maintained on GitHub, which is updated within days of a resignation, death, appointment, or special election. Because Alto reads the current roster rather than election results, an appointed senator appears here as soon as the dataset records the seat change.