Seneca
City in Grant County, Oregon

Seneca is a city in Grant County, Oregon, with 165 residents (2020 Census). It sits at 4,692 ft (1,430 m) above sea level. The nearest town is Canyon City, 17.9 miles N.
- 165residents (2020 Census)
- 4,692 ftelevation · 1,430 m
- 0.8 sq miland area · 2.1 km²
- 208 / sq mipopulation density
- 97873ZIP code
About Seneca
Seneca is a city in Grant County, Oregon, United States. It is located in the Blue Mountains about 23 miles (37 km) south of Canyon City, on U.S. Route 395, on the edge of the Malheur National Forest. As of the 2020 census, Seneca had a population of 165.
Text: Wikipedia · CC BY-SA 4.0
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Living in Seneca
- Median household income
- $39,821
- Median home value
- $156,300
- Median age
- 67.8
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Map of Seneca
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Open in Google Maps ›Seneca, OR population
Seneca had 165 residents in the 2020 Census.
| 2020 Census | 165 |
|---|---|
| Density | 208 per sq mi (80 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Seneca at a glance
| State | Oregon (OR) |
|---|---|
| County | Grant County |
| Type | City |
| Population | 165 (2020) |
| Land area | 0.79 sq mi (2.1 km²) |
| Elevation | 4,692 ft (1,430 m) |
| Coordinates | 44.1352° N, 118.9763° W |
| ZIP code | 97873 |
| Census code (GEOID) | 4166200 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Seneca
- Canyon City17.9 mi N
- John Day19.6 mi N
- Mount Vernon20.6 mi N
- Prairie City26.1 mi NE
- Burns38.0 mi S
- Hines40.3 mi S
- Long Creek40.5 mi N
- Unity44.8 mi NE
- Greenhorn46.2 mi NE
Straight-line distance between town centers.
Frequently asked questions about Seneca
What county is Seneca in?
Seneca is in Grant County, Oregon.
What is the population of Seneca, OR?
165 people lived in Seneca at the 2020 Census.
What is the ZIP code of Seneca, OR?
The ZIP code of Seneca is 97873.
What is the elevation of Seneca?
4,692 feet (1,430 m) above sea level.
What towns are near Seneca?
Canyon City (17.9 mi), John Day (19.6 mi), Mount Vernon (20.6 mi), Prairie City (26.1 mi), Burns (38.0 mi).
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