Court directory
King County - Municipal Courts - Mercer Island
Court information
Mercer Island Municipal Court
- Physical address
- 12835 Newcastle Way, Ste 301, Newcastle, WA 98056
Official court websiteChecked Aug 15, 2026Official court websiteChecked Aug 15, 2026
Aliases: WA King County - Municipal Courts - Mercer Island · Washington King County - Municipal Courts - Mercer Island