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 | Official name: State of Washington Washington postal code abbreviation: WA You may also be interested in the answers to the following questions: Total area: 184 827 km2 ✅ What is the largest city by population in Washington?- Largest Washington cities by population: Seattle ✅ What is the capital of Washington?- State capital of Washington: Olympia ✅ What is the population of Washington?- Washington state population 2025: 6 830 038 |