|Majority Leader of the Alaska Senate|
January 15, 2019 – July 8, 2019
|Preceded by||Peter Micciche|
|Succeeded by||Lyman Hoffman|
|Member of the Alaska Senate|
from the K district
|Assumed office |
January 20, 2015
|Preceded by||Lesil McGuire|
|Member of the Alaska House of Representatives|
from the 27th district
January 18, 2011 – January 20, 2015
|Preceded by||Bob Buch|
|Succeeded by||Mike Hawker|
|Born||January 11, 1968|
Anchorage, Alaska, U.S.
|Education||Harvard University (BA)|
University of Alaska, Southeast (MA)
Mia C. Costello (born January 11, 1968) is a Republican member of the Alaska Senate from District K. She previously served from 2011 to 2015 in the Alaska House of Representatives, representing the 20th District.
In November 2010, Costello defeated Democratic incumbent Bob Buch to win her House seat. Costello received 3,696 votes to Buch's 2,873. 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.
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.
- "Testator (Will) - Summary (3AN-03-00049WI In the Matter of: Costello, Mia C)". CourtView. Alaska Court System. Archived from the original on April 2, 2012. Retrieved September 17, 2011.
- Forgey, Pat (November 4, 2014). "Costello win helps Alaska Republicans maintain legislative grip". Alaska Dispatch. Retrieved January 22, 2015.
- "Senator Mia Costello". Alaska State Legislature. Retrieved Feb 21, 2019.
- Alaska State Legislature - Representative Mia Costello official government website
- Mia Costello at 100 Years of Alaska's Legislature
| Majority Leader of the Alaska Senate
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