Population
Greater Than 6000

College Place-99324 (9,294)
Walla Walla-99362 (39,344)

Population
Between 6000 and 1000

Burbank-99323 (3,697)
Dixie-99329 (2,457)
Prescott-99348 (2,119)
Touchet-99360 (1,574)
Waitsburg-99361 (2,453)
Wallula-99363 (1,574)

Population
Less than 1000