Seneca, OR ZIP code
The ZIP code for Seneca, Oregon is 97873. It is in Grant County.
- Population in these ZIPs
- 109
- Avg. median income
- $39,800population-weighted
- Typical home value
- $156,300population-weighted
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Seneca, OR ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 97873 | 109 | $39,821 | $156,300 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Seneca
- Canyon City 10 mi
- John Day 20 mi
- Mount Vernon 25 mi
- Prairie City 26 mi
- Drewsey 30 mi
- Dayville 30 mi
- Burns 38 mi
- Paulina 39 mi
- Unity 44 mi
- Long Creek 45 mi
- Hines 45 mi
- Bates 46 mi
Frequently asked questions
What is the ZIP code for Seneca, OR?
The ZIP code for Seneca, OR is 97873.
What county is Seneca, Oregon in?
Seneca ZIP codes are in Grant County.