Identifiers: city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Seattle (city), WA | 737,015 |
| 2 | Bellevue (city), WA | 151,854 |
| 3 | Kent (city), WA | 136,588 |
| 4 | Renton (city), WA | 106,785 |
| 5 | Federal Way (city), WA | 101,030 |
| 6 | Kirkland (city), WA | 92,175 |
| 7 | Auburn (city), WA | 87,256 |
| 8 | Redmond (city), WA | 73,256 |
| 9 | Sammamish (city), WA | 67,455 |
| 10 | Shoreline (city), WA | 58,608 |
| 11 | Burien (city), WA | 52,066 |
| 12 | Bothell (city), WA | 48,161 |
| 13 | Edmonds (city), WA | 42,853 |
| 14 | Issaquah (city), WA | 40,051 |
| 15 | Lynnwood (city), WA | 38,568 |
| 16 | Des Moines (city), WA | 32,888 |
| 17 | SeaTac (city), WA | 31,454 |
| 18 | Mercer Island (city), WA | 25,748 |
| 19 | Mill Creek East (CDP), WA | 24,912 |
| 20 | Eastmont (CDP), WA | 24,059 |
Identifiers: city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Seattle (city), WA | 737,015 |
| 2 | Bellevue (city), WA | 151,854 |
| 3 | Kent (city), WA | 136,588 |
| 4 | Renton (city), WA | 106,785 |
| 5 | Federal Way (city), WA | 101,030 |
| 6 | Kirkland (city), WA | 92,175 |
| 7 | Auburn (city), WA | 87,256 |
| 8 | Redmond (city), WA | 73,256 |
| 9 | Sammamish (city), WA | 67,455 |
| 10 | Shoreline (city), WA | 58,608 |
| 11 | Burien (city), WA | 52,066 |
| 12 | Bothell (city), WA | 48,161 |
| 13 | Issaquah (city), WA | 40,051 |
| 14 | Lynnwood (city), WA | 38,568 |
| 15 | Des Moines (city), WA | 32,888 |
| 16 | SeaTac (city), WA | 31,454 |
| 17 | Maple Valley (city), WA | 28,013 |
| 18 | Mercer Island (city), WA | 25,748 |
| 19 | Mill Creek East (CDP), WA | 24,912 |
| 20 | Kenmore (city), WA | 23,914 |
Identifiers: city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Seattle (city), WA | 737,015 |
| 2 | Bellevue (city), WA | 151,854 |
| 3 | Kent (city), WA | 136,588 |
| 4 | Renton (city), WA | 106,785 |
| 5 | Kirkland (city), WA | 92,175 |
| 6 | Redmond (city), WA | 73,256 |
| 7 | Sammamish (city), WA | 67,455 |
| 8 | Shoreline (city), WA | 58,608 |
| 9 | Burien (city), WA | 52,066 |
| 10 | Bothell (city), WA | 48,161 |
| 11 | Issaquah (city), WA | 40,051 |
| 12 | Lynnwood (city), WA | 38,568 |
| 13 | Des Moines (city), WA | 32,888 |
| 14 | SeaTac (city), WA | 31,454 |
| 15 | Mercer Island (city), WA | 25,748 |
| 16 | Mill Creek East (CDP), WA | 24,912 |
| 17 | Kenmore (city), WA | 23,914 |
| 18 | Cottage Lake (CDP), WA | 22,857 |
| 19 | North Lynnwood (CDP), WA | 22,802 |
| 20 | Union Hill-Novelty Hill (CDP), WA | 22,683 |