Mia Costello

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.

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.

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.