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Official portrait of Matt Longjohn

Photo: Michigan Legislature. Source.

40House
District

Representative

Matt Longjohn

SeatHouse District 40
PartyDemocratic
Capitol officeRoom S-889 · Anderson House Office Building
Mailing addressRoom S-889, Anderson House Office Building 124 N. Capitol Ave., Lansing, MI 48933
Capitol phone517-373-8670
Write toMattLongjohn@house.mi.gov (office address in the official directory)
HometownPortage
TenureServing since January 1, 2025
Term limited2036

Committees 2

Bills, 2025 to 2026 session 14 as principal author · 592 as coauthor

All 14 bills as principal author ›

Coauthor of HB 4045, HB 4047, HB 4048, HB 4077, HB 4078, HB 4101, HB 4103, HB 4104, HB 4309, HB 4358, HB 4359, HB 4598 and 580 more.

Bills and sponsors: Open States bulk data (public domain dedication), 2026-11-public.pgdump; status is read from the official actions. About the momentum score

Effectiveness 103rd Legislature, 2025 to 2026

0.00103rd of 110 in the House
7th percentile
Bills & joint resolutions authored11
… passed committee / chamber / both0 / 0 / 0
… became law0
Carried in the other chamber (became law)0 (0)
Points vs. House minority average0 ÷ 8.10 = 0.00
Most-authored topicsHealth & mental health (8), State government & agencies (5), Business, jobs & the economy (2)

House rankings · How the score works. A count of bill progress, not a judgment of the member's work.

Closest allies co-authorship, 2025 to 2026

“Written together” = 2025 to 2026 session bills and joint resolutions on which both are principal author or coauthor (measures with more than 60 sponsors are left out). Sharing bills does not imply a personal or political alliance.

District 40

Counties
Kalamazoo
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Who represents me?
Senate members sharing a county
Thomas Albert (18), Sean McCann (19)
House District 40 and neighboursHouse District 39: Pauline Wendzel (R)House District 40: Matt Longjohn (D)House District 41: Julie Rogers (D)House District 42: Matt Hall (R)House District 45: Sarah Lightner (R)KalamazooVan Buren3940414245
District 40 outlined; neighbours link to their members. Full map › · Census 2024 boundaries, simplified.

Official district map: see the official House page.

Lobbyist reports naming this member 2025 to 2026

No lobbyist expenditure reports naming this member are in our data.

Registered lobbyists and the organizations they represent are on our sister site, the Michigan Lobby Guide.

A reported expenditure is a legal, disclosed activity and does not imply wrongdoing.

Source

Copied from https://housedems.com/matt-longjohn/ on November 2, 2026, through Open States people data (CC0), checked against official legislature rosters. Not endorsed by the Michigan House of Representatives.

Sources for this page

Copied from public pages of the Michigan House of Representatives and the Michigan State Senate, through Open States people data (CC0), checked against official legislature rosters. Neither Michigan Capitol Guide nor this information, as presented here, is endorsed by the Michigan House of Representatives or the Michigan State Senate.