Filing dates for candidates: May 13 – May 17
Clark County – http://www.clark.wa.gov/elections/index.html
Cowlitz County – https://wei.sos.wa.gov/county/cowlitz/en/pages/default.aspx/
Lewis County – https://wei.sos.wa.gov/county/lewis/en/pages/home.aspx
Thurston County – http://www.co.thurston.wa.us/auditor/elections/electns.htm