Missouri House · District 55

Bill Irwin

Republican

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Votes with the Speaker 96% On 490 contested votes where both voted · 97% on all votes Votes with own party 96% Partisan rank: 75 of 155 in the House (tied with 17 others) Didn't vote at roll call 0.5% 5 of 1,022 roll calls · 5 of them excused

Bills passed 0 13 sponsored · 0 became law · Rank 37 of 155 in the House (tied with 118 others) Bills that became law 0 of 0 passed · 0 vetoed

Where they sit

Every current House member, placed from most liberal to most conservative by how they voted on contested bills.

How these numbers work →

← Most liberalThe aisleMost conservative →

Votes with DemocratsCrosses party linesVotes with Republicans

Bill Irwin's seat is marked. Seats run from most liberal (left) to most conservative (right), by contested floor votes. Color shows how often each member crosses party lines toward the middle on votes that divide the parties: solid blue or red means almost never, and purple means on at least 1 in 5 of those votes. Gray seats are members too new to score. How these numbers work

Missouri House52ndpercentile

More conservative than 51% of the Missouri House.

Most liberalMost conservative

75th most conservative of 155

The scores

How these numbers work →

Votes with the Speaker

96%

Each tick is a current House member, by party; the dot is Bill Irwin.

On 490 contested votes where both voted97% on all 965 votes where both voted

Votes with own party

96%

Each tick is a current House member, by party; the dot is Bill Irwin.

On 357 party-line votesPartisan rank: 75 of 155 in the House (tied with 17 others)74 House members vote with their party more often

Bills

The bills Bill Irwin sponsored this term and how far they got. Co-sponsors aren’t counted.

How these numbers work →

Bills: Bill Irwin
	Bills
Sponsored	13
Passed both chambers	0
Became law	0
Vetoed by the Governor	0

Rank by bills passed: Rank 37 of 155 in the House (tied with 118 others) · 37 of 105 Republicans (tied with 68 others)

A bill's sponsor is the member who introduced it; co-sponsors aren't counted.

Bills that passed both chambers

None of the bills Bill Irwin sponsored passed both chambers.

Budget projects

Missouri's appropriation bills don't say which legislator asked for an item, so there's no budget figure for Missouri legislators.

Contested votes where they split

22 against the Speaker; 20 against most of their party.

Contested votes where they split: Bill Irwin
Date	Bill and motion	Their vote	Speaker	Most of their party
Sept. 16, 2026	HR 2: Informs the Senate that the House adopted no motions to override the veto of certain bills Previous Question	Yea	Nay (split)	Nay (split)
May 15, 2026	SB 1002: Creates and modifies provisions relating to elections submitted to the people by a school board of any school district located in St. Charles County Previous Question	Nay	Yea (split)	Yea (split)
May 13, 2026	SB 1544: Modifies provisions relating to state designations House Amendment 2	Yea	Nay (split)	Nay (split)
May 12, 2026	HB 1871: Modifies provisions relating to elections Final Passage	Nay	Yea (split)	Yea (split)
May 6, 2026	HB 2018: Appropriates money for the expenses, grants, refunds, and distributions of the several departments and offices of state government Final Passage	Yea	Nay (split)	Yea
May 5, 2026	SB 1421: Modifies provisions relating to public safety House Amendment 21	Yea	Nay (split)	Yea
April 28, 2026	HB 1758: Establishes the "Daylight Saving as New Standard Time Pact" Third Reading and Final Passage	Yea	Nay (split)	Yea
April 20, 2026	HB 2142: Modifies the "Show MO Act" tax credit caps for qualified motion media production projects Third Reading and Final Passage	Yea	Yea	Nay (split)
April 20, 2026	HB 1736: Modifies provisions governing county sales taxes for park purposes to allow tax revenues to be used for storm water management projects in parks Third Reading and Final Passage	Yea	Yea	Nay (split)
April 2, 2026	HB 2409: Authorizes the "Child Care Contribution Tax Credit Act", the "Employer-Provided Child Care Assistance Tax Credit Act", and the "Child Care Providers Tax… Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
April 2, 2026	HB 3239: Establishes and modifies provisions relating to adult education Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
March 3, 2026	HB 2404: Prohibits a political subdivision from adopting policies for property transferred by political subdivisions from being used for lawful education purposes by a… Previous Question	Nay	Yea (split)	Yea (split)
Feb. 18, 2026	HB 1766: Modifies provisions relating to personal property assessments Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
Feb. 16, 2026	HB 2384: Creates provisions restricting political subdivisions from imposing requirements that threaten affordability of developments or improvements of property Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
Sept. 9, 2025	HB 1: Creates provisions for redistricting federal congressional seats Third Reading and Final Passage	Yea	Nay (split)	Yea
Sept. 9, 2025	HJR 3: Creates the "Protect Missouri Voters" amendment Third Reading and Final Passage	Yea	Nay (split)	Yea
Sept. 8, 2025	HB 1: Creates provisions for redistricting federal congressional seats Perfection	Yea	Nay (split)	Yea
Sept. 8, 2025	HJR 3: Creates the "Protect Missouri Voters" amendment Perfection	Yea	Nay (split)	Yea
May 12, 2025	SB 105: Modifies provisions relating to invasive plants House Amendment 1	Yea	Yea	Nay (split)
April 30, 2025	SB 63: Creates and modifies provisions relating to the participation of certain students in nontraditional educational settings Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
April 29, 2025	SB 7: Modifies provisions relating to health care Third Reading and Final Passage	Yea	Nay (split)	Yea
April 29, 2025	SB 7: Modifies provisions relating to health care House Amendment 5	Nay	Excused	Yea (split)
April 22, 2025	HB 952: Establishes provisions relating to payments for tort liability to insurers Third Reading and Final Passage	Nay	Yea (split)	Nay
April 17, 2025	HJR 73: Proposes a constitutional amendment that establishes provisions relating to reproductive health care Third Reading and Final Passage	Yea	Nay (split)	Yea
April 15, 2025	HJR 73: Proposes a constitutional amendment that establishes provisions relating to reproductive health care Perfection	Yea	Nay (split)	Yea
April 14, 2025	HB 126: Modifies provisions relating to elections Third Reading and Final Passage	Yea	Yea	Nay (split)
April 7, 2025	HB 970: Establishes provisions relating to video lottery gaming terminals, licenses, and regulation Perfection	Yea	Yea	Nay (split)
April 7, 2025	HB 507: Modifies provisions relating to elections Third Reading and Final Passage	Yea	Yea	Nay (split)
April 2, 2025	HB 661: Requires municipalities and the department of transportation to reimburse non-rate regulated utilities for site relocation costs incurred due to road… Third Reading and Final Passage	Nay	Yea (split)	Yea (split)
April 2, 2025	HB 507: Modifies provisions relating to elections House Amendment 1	Yea	Yea	Nay (split)
March 26, 2025	HB 661: Requires municipalities and the department of transportation to reimburse non-rate regulated utilities for site relocation costs incurred due to road… Previous Question	Nay	Excused	Yea (split)

Every roll call

How Bill Irwin voted on each of the 1,022 floor roll calls while in office, newest first.

Every roll call: Bill Irwin
Date	Vote	Their vote	Most of their party	Speaker	Yeas–nays
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Contested and party-line votes link to their own pages; the rest link to the official record.

Contact, committees and caucuses

Contact

Official page: house.mo.gov
Email: bill.irwin@house.mo.gov
Capitol office: Room 118-CB, 201 W. Capitol Ave., Jefferson City, MO 65101
573-751-3783

Committees

Crime and Public Safety
Government Accountability
Government Efficiency
Veterans and Armed Forces

Contact details and committee assignments from Open States' data on the Missouri General Assembly, which it collects from the chambers' websites, as of Oct. 15, 2026.

Source: the Missouri House and Senate Journals, Jan. 8, 2025 to Sept. 16, 2026. How these numbers work · Corrections