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Congressional Committees: Members of Every Committee

Full membership rosters for all 49 House, Senate and joint committees — 1340 committee seats in all — with each committee's chair, ranking member, party split, and how many of its members face voters in 2026.

Data as of September 21, 2026, rebuilt daily from the official House and Senate rosters.

Quick Answer

Committees
49 — 23 House, 21 Senate, 5 Joint
Committee Seats
1340 (most members sit on 2–4 committees)
Largest
House Transportation and Infrastructure Committee, 67 members
Chairs Up in 2026
34 of 49

House Committees (23)

Every House committee is chaired by the majority party, and every House member is up for reelection in 2026 — so each of these committees is entirely on the ballot. Click a committee for its full roster in seniority order.

House Agriculture Committee

53 members · 29–24 · Chair: Glenn Thompson

53 up

House Appropriations Committee

63 members · 35–28 · Chair: Tom Cole

63 up

House Armed Services Committee

57 members · 30–27 · Chair: Mike Rogers

57 up

House Education and Workforce Committee

37 members · 21–16 · Chair: Tim Walberg

37 up

House Energy and Commerce Committee

54 members · 30–24 · Chair: Brett Guthrie

54 up

House Ethics Committee

10 members · 5–5 · Chair: Michael Guest

10 up

House Financial Services Committee

53 members · 30–23 · Chair: J. Hill

53 up

House Foreign Affairs Committee

53 members · 28–25 · Chair: Brian Mast

53 up

House Homeland Security Committee

33 members · 18–15 · Chair: Andrew Garbarino

33 up

House Administration Committee

12 members · 8–4 · Chair: Bryan Steil

12 up

House Natural Resources Committee

45 members · 25–20 · Chair: Bruce Westerman

45 up

House Oversight and Government Reform Committee

47 members · 26–21 · Chair: James Comer

47 up

House Rules Committee

13 members · 9–4 · Chair: Virginia Foxx

13 up

House Science, Space, and Technology Committee

40 members · 22–18 · Chair: Brian Babin

40 up

House Small Business Committee

26 members · 14–12 · Chair: Roger Williams

26 up

House Budget Committee

37 members · 21–16 · Chair: Jodey Arrington

37 up

House Judiciary Committee

44 members · 25–19 · Chair: Jim Jordan

44 up

House Transportation and Infrastructure Committee

67 members · 36–31 · Chair: Sam Graves

67 up

House Veterans' Affairs Committee

25 members · 14–11 · Chair: Mike Bost

25 up

House Ways and Means Committee

45 members · 26–19 · Chair: Jason Smith

45 up

House Intelligence Committee

27 members · 15–12 · Chair: Eric Crawford

27 up

House Select Committee on China

24 members · 13–11 · Chair: John Moolenaar

24 up

House January 6 Select Subcommittee

7 members · 5–2 · Chair: Barry Loudermilk

7 up

Senate Committees (21)

Senators serve six-year terms in three staggered classes, so only the Class II members of each committee are up in 2026. The “Up in 2026” column counts them.

Senate Agriculture, Nutrition, and Forestry Committee

23 members · 12–11 · Chair: John Boozman

9 up

Senate Appropriations Committee

28 members · 14–14 · Chair: Susan Collins

13 up

Senate Armed Services Committee

27 members · 14–13 · Chair: Roger Wicker

8 up

Senate Banking, Housing, and Urban Affairs Committee

24 members · 13–11 · Chair: Tim Scott

8 up

Senate Commerce, Science, and Transportation Committee

28 members · 15–13 · Chair: Ted Cruz

7 up

Senate Energy and Natural Resources Committee

20 members · 11–9 · Chair: Mike Lee

6 up

Senate Environment and Public Works Committee

18 members · 9–9 · Chair: Shelley Capito

6 up

Senate Finance Committee

27 members · 14–13 · Chair: Mike Crapo

8 up

Senate Foreign Relations Committee

22 members · 12–10 · Chair: James Risch

9 up

Senate Health, Education, Labor, and Pensions Committee

23 members · 12–11 · Chair: Bill Cassidy

7 up

Senate Homeland Security and Governmental Affairs Committee

15 members · 8–7 · Chair: Rand Paul

2 up

Senate Indian Affairs Committee

11 members · 6–5 · Chair: Lisa Murkowski

5 up

Senate Rules and Administration Committee

17 members · 9–8 · Chair: Mitch McConnell

7 up

Senate Small Business and Entrepreneurship Committee

19 members · 10–9 · Chair: Joni Ernst

7 up

Senate Budget Committee

20 members · 10–10 · Chair: Ron Johnson

6 up

Senate Judiciary Committee

21 members · 11–10 · Chair: Chuck Grassley

5 up

Senate Veterans' Affairs Committee

19 members · 10–9 · Chair: Jerry Moran

4 up

Senate Ethics Committee

6 members · 3–3 · Chair: James Lankford

3 up

Senate Intelligence Committee

21 members · 11–10 · Chair: Tom Cotton

8 up

Senate Aging Committee

13 members · 7–6 · Chair: Rick Scott

1 up

Senate Caucus on International Narcotics Control

7 members · 4–3 · Chair: Sheldon Whitehouse

3 up

Joint Committees (5)

Joint committees and commissions draw members from both chambers; the chair typically alternates between a senator and a representative each Congress.

Helsinki Commission

9 members · 5–4 · Chair: Roger Wicker

3 up

Joint Committee on the Library

10 members · 6–4 · Chair: Bryan Steil

7 up

Joint Committee on Printing

10 members · 6–4 · Chair: Mitch McConnell

8 up

Joint Committee on Taxation

10 members · 6–4 · Chair: Mike Crapo

6 up

Joint Economic Committee

20 members · 12–8 · Chair: David Schweikert

11 up

How to Read a Committee Roster

Each roster lists the majority party first, in seniority order starting with the chair, then the minority starting with the ranking member — the same order the House and Senate publish. The party split on a committee tracks the chamber's overall margin (see the current party breakdown), which is why control of the chamber decides every chair at once. The rank column is a member's seniority within their own party on that committee: it decides who moves up when a seat opens and who would become chair if the majority flipped.

The rosters change most in January of an odd-numbered year, when a new Congress organizes and every committee is reconstituted; they also shift mid-session after resignations, deaths, special elections and party leadership decisions. This page and every committee page are rebuilt daily from the official membership data, so the counts here are current to the date shown above. For what committees actually do — referral, hearings, markup and reporting — see how congressional committees work. For just the leadership of every committee on one page, see committee chairs of Congress.

Live on Congress Countdown

Every committee chair and ranking member on one page

Including which chairs are on the 2026 ballot.

Frequently Asked Questions

How many committees are there in Congress?

As of September 21, 2026, the data records 49 committees with current members: 23 in the House, 21 in the Senate, and 5 joint committees or commissions with members from both chambers. Standing committees carry over from one Congress to the next; select and special committees are created for a purpose and can lapse.

How many committees does a member of Congress serve on?

There are 1340 committee seats across 49 committees, so the typical member holds several. House members usually sit on two or three committees (plus subcommittees); senators typically sit on three or four. Party rules cap assignments on the most powerful committees so seats are spread across the conference.

Which is the largest committee in Congress?

The House Committee on Transportation and Infrastructure is the largest, with 67 members as of September 21, 2026. Committee sizes are negotiated between the parties at the start of each Congress and roughly track the chamber's party ratio.

Who decides committee assignments?

Each party assigns its own members. In the House, the Republican Steering Committee and the Democratic Steering and Policy Committee make the assignments; in the Senate, each party conference does. Seniority, member requests, regional balance and leadership preference all factor in, and the full chamber ratifies the slates by resolution at the start of a Congress.

Related Resources

Who Chairs Each Congressional Committee?

Every committee chair and ranking member — and which of them face voters in 2026.

How Congressional Committees Work

How committees work, types of committees, and their role in shaping legislation.

Party Breakdown of Congress

Current Senate and House seats by party — majority margins, Independents, and vacancies, from live data.