Thornton, WA zip code
Thornton, Washington uses one zip code: 99176. Most of it is in Whitman County. Together these zip codes are home to about 163 people.
Zip codes
1
Population
163
All zips combined
Largest zip
99176
163 residents
Zip codes in Thornton
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 99176 | 163 | $128,000 |