Sen. Mary Ann Dunwell

Sixth-session Democrat from Helena

Representing Senate District 42

East Helena and northeast Helena Valley

406-461-5358 • maryann.dunwell@legmt.gov

Committees •Bills •Key votes •Voting stats •2024 election margin •

Mary Ann Dunwell previously served in the Montana Senate in 2023, as well as the House in 2015, 2017, 2019 and 2021.

Committee assignments

Senate Taxation

Senate Agriculture, Livestock and Irrigation

Senate Highways and Transportation - Vice-chair

Senate Legislative Administration

Bills sponsored

📋 SB 125: Revise laws related to community homes for people with developmental disabilities Mary Ann Dunwell (D)📃 Bill text 💵 Fiscal note	❌1st Cmte. ⚪️Senate ⚪️House ⚪️Gov.
📋 SB 126: Revise tenant moveout laws Mary Ann Dunwell (D)📃 Bill text	❌1st Cmte. ⚪️Senate ⚪️House ⚪️Gov.
📋 SB 139: Eliminate clergy exemption in mandatory reporting of child abuse and neglect Mary Ann Dunwell (D)📃 Bill text	❌1st Cmte. ⚪️Senate ⚪️House ⚪️Gov.
📋 SB 169: Revise intangible personal property exemption Mary Ann Dunwell (D)📃 Bill text 💵 Fiscal note	✴️1st Cmte. ⚪️Senate ⚪️House ⚪️Gov.
📋 SB 189: Lower residential, commercial, and agricultural property tax rates Mary Ann Dunwell (D)📃 Bill text 💵 Fiscal note	✴️1st Cmte. ⚪️Senate ⚪️House ⚪️Gov.

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Floor vote statistics

Calculations based on 152 Senate floor votes in 2025 involving bills.

🥇 67%

of votes cast on winning side

Average for Senate Democrats is 72%.

🔴 57%

of votes cast on side taken by most Republicans

Average for Senate Democrats is 62%.

🔵 95%

of votes cast on side taken by most Democrats

Average for Senate Democrats is 97%.

Dunwell has been marked absent or excused for 0 votes. Average for Senate lawmakers is 0.8.

SD 42 election results

Last in-cycle for Senate election in 2022. House seats are elected every two years, Senate seats every four.

General election vote, 2022

Won by 11% (968 votes)

Party primary vote, 2022

Ran unopposed

Governor vote in district, 2024

Won by 13% (1,848 votes)

Senators elected in 2022 were assigned new districts during the 2023 redistricting cycle.

Montana Free Press coverage

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About the 2025 Montana Free Press Capitol Tracker

This guide is an effort to make the quantifiable aspects of the Montana Legislature more accessible to the public by compiling information about lawmakers, proposed bills and the legislative process. This is a project of Montana Free Press, a 501(c)(3) nonprofit newsroom that aims to provide Montanans with in-depth, nonpartisan news coverage.

The information presented here is collected from a variety of sources including the Montana Legislature's public roster and its official bill-tracking system. Reporting and web design were done by Jacob Olness and Eric Dietrich. Please contact them at jolness@montanafreepress.org and edietrich@montanafreepress.org with bug reports, questions or suggestions.

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2025 Capitol Tracker

The lawmakers, bills and votes of the 69th Montana Legislature