# Mia Costello

Mia Costello is a Republican member of the Alaska House for district 15.

- Party: Republican
- Seat: Alaska House, district 15
- Serving since: 2025-01-21
- Current term: AK 2025–26 session
- Open States ID: ocd-person/aea19844-4572-4086-9462-e50ad3ff4b76

Source: https://americaspoliticalpulse.com/p/aea19844-4572-4086-9462-e50ad3ff4b76 (America’s Political Pulse, Polarization Research Lab), data through 2026-10-27. Data under CC BY 4.0. Cite as: Westwood, Sean J., and Yphtach Lelkes. 2024. America's Political Pulse [data set].

## Headline

Costello sits at +0.60 on the CSIP scale, more conservative than 86% of State House Republicans.

## Ideology (CSIP)

CSIP score +0.60 (standard error 0.03), from 595 donors and 0 roll calls. Negative is left of 0, positive right of it, on one scale for every official. 86% of State House Republicans score lower.

## Legislation (AK 2025–26 session)

Sponsored 10 bills: 10 reached committee, 2 passed one chamber, 2 passed both, 0 became law. Cosponsored 36. 20.0% of sponsored bills got out of committee (Alaska House 22.1%; rank 17 of 34).

Recent sponsored bills:

- HB 338: An Act establishing the Alaska Work and Save Program for employees who do not have access to a qualified retirement savings plan at work; relating to the… (in committee, 2026-04-27) https://openstates.org/ak/bills/34/HB338/
- HB 373: An Act relating to investments of the permanent fund; relating to investments made by the Alaska Permanent Fund Corporation; relating to regulations adopted… (in committee, 2026-04-16) https://openstates.org/ak/bills/34/HB373/
- HB 360: An Act relating to apprenticeship programs; establishing a state apprenticeship office; and establishing the Alaska Apprenticeship Advisory Council. (in committee, 2026-02-23) https://openstates.org/ak/bills/34/HB360/
- HB 339: An Act establishing a personal finance education program for public schools; and providing for an effective date. (in committee, 2026-02-23) https://openstates.org/ak/bills/34/HB339/
- HB 311: An Act relating to special registration plates commemorating the 250th anniversary of the United States of America; and providing for an effective date. (in committee, 2026-02-16) https://openstates.org/ak/bills/34/HB311/
- HB 278: An Act establishing the Alaska-Ireland Trade Commission; and providing for an effective date. (passed both chambers, 2026-07-03) https://openstates.org/ak/bills/34/HB278/
- HB 219: An Act relating to a tax credit for career and technical education; and providing for an effective date. (in committee, 2025-05-07) https://openstates.org/ak/bills/34/HB219/
- HB 187: An Act relating to the membership of the legislative council; and relating to the membership of the Legislative Budget and Audit Committee. (in committee, 2026-05-07) https://openstates.org/ak/bills/34/HB187/
- HJR 19: Proposing amendments to the Constitution of the State of Alaska relating to voter qualification. (in committee, 2025-05-09) https://openstates.org/ak/bills/34/HJR19/
- HJR 18: Supporting and recognizing the importance of a natural gas pipeline project in the state; and urging the federal government to take all necessary actions to… (passed both chambers, 2026-09-30) https://openstates.org/ak/bills/34/HJR18/

## Campaign money (2026 cycle)

Itemized receipts $41.6K (State House Republicans median $33.7K). 94% of itemized individual money came from in state. Aggregates only; no individual donors.

## Links

- Official site: https://www.akleg.gov/basis/Member/Detail/32?code=COS
- Campaign site: https://www.votemia.com/
- X: https://x.com/miacostello_ak
- Facebook: https://www.facebook.com/VoteMia/
- Instagram: https://www.instagram.com/miacostelloak/?hl=en
- YouTube: https://www.youtube.com/@miacostelloable
- LinkedIn: https://www.linkedin.com/in/repmiacostello/

Full profile, with every chart and the methods: https://americaspoliticalpulse.com/p/aea19844-4572-4086-9462-e50ad3ff4b76