Seattle, Washington, USA, has 21 sister cities through Sister Cities International.[1]
Africa • Asia • Europe • North America • Oceania • South America
Albania • Argentina • Austria • Belarus • Belgium • Bosnia and Herzegovina • Bulgaria • Canada • China • Croatia • Czech Republic • Denmark • Egypt • Estonia • Faroe Islands • Finland • France • Germany • Greece • Hungary • Iceland • India • Ireland • Israel • Italy • Japan • South Korea • Kosovo • Latvia • Lebanon • Lithuania • Luxembourg • Macau • Macedonia • Mexico • Moldova • Montenegro • Netherlands • Norway • Pakistan • Palestine • Philippines • Poland • Portugal • Romania • Russia • Serbia • Slovakia • Slovenia • Spain • Sweden • Switzerland • Taiwan • Turkey • Ukraine • United Kingdom • United States
Boston • California • Colorado • Connecticut • Denver • Florida • Fort Lauderdale • Grand Forks • Houston • Maine • Maryland • Massachusetts • Michigan • New Hampshire • New York • Ohio • Pennsylvania • Rhode Island • San Francisco • Seattle • Shanghai • Springfield • Taipei • Toronto • Vermont