Monument Oregon ZIP Codes
Monument holds a single ZIP code.
Every ZIP code in Monument
| ZIP code | County |
|---|---|
| 97864 | Grant County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Monument codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Monument. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Monument ZIP code begins 978. Those first three digits identify the sectional center facility that processes mail for this part of Oregon. Statewide that range covers 54 ZIP codes, so Monument accounts for 2% of it.
Every Oregon ZIP prefix and the region it covers →
Area codes covering Monument
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Monument occupies.
Monument Oregon area codes in full →
Where Monument's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Monument
| City | Distance | ZIP codes |
|---|---|---|
| Long Creek Oregon ZIP codes | 17 mi | 1 ZIP code |
| Spray Oregon ZIP codes | 18 mi | 1 ZIP code |
| Dayville Oregon ZIP codes | 25 mi | 1 ZIP code |
| Mount Vernon Oregon ZIP codes | 32 mi | 1 ZIP code |
| Ukiah Oregon ZIP codes | 32 mi | 1 ZIP code |
| John Day Oregon ZIP codes | 36 mi | 1 ZIP code |
| Heppner Oregon ZIP codes | 37 mi | 1 ZIP code |
| Canyon City Oregon ZIP codes | 38 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.