Washington Demographics Site Map

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Browse Washington Zip Codes

• Zip Codes by Population

Largest 10 Counties by Population

1. King County
2. Pierce County
3. Snohomish County
4. Spokane County
5. Clark County
6. Thurston County
7. Kitsap County
8. Yakima County
9. Whatcom County
10. Benton County

Largest 10 Cities by Population

1. Seattle
2. Spokane
3. Tacoma
4. Vancouver
5. Bellevue
6. Kent
7. Everett
8. Renton
9. Spokane Valley
10. Federal Way

Largest 10 Zip Codes by Population

1. 99301
2. 98052
3. 98012
4. 98682
5. 98208
6. 99208
7. 98391
8. 98115
9. 98270
10. 98034