List of cities in Washington List of cities List of cities

| Name_ | County | Population_2012_est_ | Population_2010 | Land_area_ |
|---|---|---|---|---|
| Kalama | Cowlitz | 2346 | 2344 | 2.77 sq mi (7.2 km2) |
| Kelso | Cowlitz | 11832 | 11925 | 8.14 sq mi (21.1 km2) |
| Kenmore | King | 21280 | 20460 | 6.15 sq mi (15.9 km2) |
| Kennewick | Benton | 75971 | 73917 | 26.93 sq mi (69.7 km2) |
| Kent | King | 122999 | 92411 | 28.63 sq mi (74.2 km2) |
| Kettle Falls | Stevens | 1593 | 1595 | 1.07 sq mi (2.8 km2) |
| Kirkland | King | 50697 | 48787 | 10.79 sq mi (27.9 km2) |
| Kittitas | Kittitas | 1405 | 1381 | 0.76 sq mi (2.0 km2) |
| La Center | Clark | 2852 | 2800 | 1.27 sq mi (3.3 km2) |
| Lacey | Thurston | 43860 | 42393 | 16.06 sq mi (41.6 km2) |
| Lake Forest Park | King | 12972 | 12598 | 3.53 sq mi (9.1 km2) |