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| County : | Walla Walla County |
| State : | Washington (WA) |
| Land Area : | 1,270.12 sq mi |
| Water Area : | 28.89 sq mi |
| Latitude : | 46.2546061 |
| Longitude : | -118.4803741 |
| Population (2010): | 58,781 |
| Population Estimate (2012) : | 58,643 |
| Population Density : | 46.28/sq mi |
| Housing Units (2012) : | 23,451 |
| Median Household Income (2012) : | $47,166 (Washington : $59,374, USA : $53,046) |
| Median Family Income (2012) : | $59,728 (Washington : $71,939, USA : $64,585) |
| Median House Price (2012) : | $206,300 (Washington : $272,900, USA : $181,400) |
Walla Walla County Cities / Towns
| Burbank (3,291) | College Place City (8,765) | Dixie (197) |
| Garrett (1,419) | Prescott City (318) | Touchet (421) |
| Waitsburg City (1,217) | Walla Walla City (31,731) | Walla Walla East (1,672) |
| Wallula (179) |
Walla Walla County Zip Codes
| 99323 (3,684) | 99324 (9,202) | 99329 (160) |
| 99348 (1,364) | 99360 (1,350) | 99361 (1,902) |
| 99362 (41,056) | 99363 (216) |