100 Smallest ZIP Codes in the United States by Population in Umatilla County, Oregon
Explore the 100 smallest ZIP codes in the United States ranked by population using U.S. Census demographic data. This page lists ZIP codes located in Umatilla County, Oregon.
| Rank | ZIP Code | City | State | Population |
|---|---|---|---|---|
| 1 | 97859 | MEACHAM | OR | 235 |
| 2 | 97880 | UKIAH | OR | 348 |
| 3 | 97835 | HELIX | OR | 488 |
| 4 | 97886 | WESTON | OR | 948 |
| 5 | 97810 | ADAMS | OR | 1,047 |
| 6 | 97826 | ECHO | OR | 1,185 |
| 7 | 97813 | ATHENA | OR | 1,468 |
| 8 | 97868 | PILOT ROCK | OR | 1,594 |
| 9 | 97875 | STANFIELD | OR | 2,608 |
| 10 | 97882 | UMATILLA | OR | 8,081 |
| 11 | 97862 | MILTON FREEWATER | OR | 12,460 |
| 12 | 97801 | PENDLETON | OR | 21,748 |
| 13 | 97838 | HERMISTON | OR | 27,713 |