Mia Costello | |
|---|---|
 | |
| Minority Leader of the Alaska House of Representatives | |
| In office January 21, 2025 –November 22, 2025 | |
| Preceded by | Calvin Schrage |
| Succeeded by | DeLena Johnson |
| Member of the AlaskaHouseofRepresentatives from the 15th district | |
| Assumed office January 21,2025 | |
| Preceded by | Tom McKay |
| Majority Leader of the Alaska Senate | |
| In office January 15,2019 –July 8,2019 | |
| Preceded by | Peter Micciche |
| Succeeded by | Lyman Hoffman |
| Member of the Alaska Senate from the K district | |
| In office January 20,2015 –January 17,2023 | |
| Preceded by | Lesil McGuire |
| Succeeded by | Matt Claman (redistricting) |
| Member of the AlaskaHouseofRepresentatives from the 27th district | |
| In office January 18,2011 –January 20,2015 | |
| Preceded by | Bob Buch |
| Succeeded by | Mike Hawker |
| Personal details | |
| Born | January 11,1968 Anchorage,Alaska,U.S. |
| Party | Republican |
| Spouse | Andrew Billings |
| Education | Harvard University (BA) University of Alaska,Southeast (MA) |
| Website | Campaign website |
Mia C. Costello (born January 11,1968) [1] is a Republican politician from Alaska. She is a member of the Alaska House of Representatives from the 15th district. She previously represented the 20th district from 2011 to 2015 and served as a member of the Alaska Senate,representing District K from 2015 to 2023.
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In November 2010,Costello defeated Democratic incumbent Bob Buch to win her House seat. Costello received 3,696 votes to Buch's 2,873. [2] Costello served on the House Finance Committee and as chair of the Natural Resources Finance Subcommittee. She ran for the Senate seat vacated by Democrat Hollis French in 2014,picking up the seat to add to the Republican Senate Majority. [3]
Costello served as minority leader for the 2025 legislative session but resigned the position in November 2025. [4]
Prior to being elected to the Alaska State House,Costello worked as a school teacher,legislative aide,and as deputy communications director for Governor Frank Murkowski. [5]
After graduating from West High School,she earned her B.A. from Harvard University and later a Master of Art in Teaching from the University of Alaska Southeast. [6]
