Mercer Island resident Tana Senn became the newest member of the state Legislature on Monday when the nine members of the Metropolitan King County Council named her to the post.

Senn will represent the 41st Legislative District, which includes part of Bellevue and Issaquah along with Beaux Arts, Newcastle, Renton and Mercer Island. She replaces former Rep. Marcie Maxwell, who resigned to take a position in state government.

Senn, 42, is a member of the Mercer Island City Council. She is running unopposed for her council seat in November.

She and her family have lived on the Island since 2005.