ZIP Code 97873
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.
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Area Profile
US Census (ACS 5-year · Gazetteer)
119
population
$76,250
median household income
1
people / sq mi
$157,100
median home value
58.8
median age
98
housing units
68
households
106.6
land area (sq mi)