---
type: Person
title: "Mary Ann Dunwell"
description: "MT Senate District 42 — MT State Senate District 42"
role: "MT Senate District 42"
party: "D"
level: "state"
branch: "legislative"
state: "MT"
district: "MT State Senate District 42"
represents: "us/states/mt/districts/senate/42"
tenure:
  start: "2023-01-02"
  current: true
election:
  term_length: 2
  term_limit: "varies"
ids:
  person: "9a0c85b2-0c58-4b5d-b1a5-4c1be6f8d8ee"
  office: "9d60c9dc-4985-42b3-a097-dc6b60d83e6a"
  tenure: "39133061-8e07-4b72-b8ff-3e3cf8aa6d9c"
  jurisdiction: "82ae61ae-72a9-47d3-baac-8e3cc3183fff"
sources:
  - field: tenure
    source: "OpenStates YAML via GitHub 2026-06-20"
  - field: jurisdiction
    source: "SLDU (Census 2025)"
confidence: official
tags: [officeholder, state, legislative, mt]
timestamp: "2026-07-04"
---

# Mary Ann Dunwell

Current MT Senate District 42 (MT State Senate District 42).

Represents [MT State Senate District 42](/us/states/mt/districts/senate/42.md).

## Sources

- tenure: OpenStates YAML via GitHub 2026-06-20
- jurisdiction: SLDU (Census 2025)

Generated from the Atlas officeholders v3 export (2026-07-04).