Minimum Age to Play Poker in Washington: 21 (inland), 18 (through offshore sites).Legal Poker: Inland (in-person only), Online (offshore sites only).The state does have plenty of in-person options and we have given a brief overview of the poker information in the state below: Online poker in Washington is illegal and the only options for playing on the internet are offshore sites. Washington Online Poker Gambling at a Glance
