| Grades | Students | P/T Ratio | ZIP | |
|---|---|---|---|---|
| Humbolt Elementary School | KG - 06 | 240 | 16 | 97820 |
| Seneca Elementary School | KG - 06 | 25 | 13 | 97873 |
| Grades | Students | P/T Ratio | ZIP | |
|---|---|---|---|---|
| Grant Union Junior/senior High School | 07 - 12 | 209 | 12 | 97845 |
| Grades | Students | P/T Ratio | ZIP | |
|---|---|---|---|---|
| Oregon Connections Academy | KG - 12 | 0 | 0 | 97869 |
| Prairie City School | PK - 12 | 260 | 10 | 97869 |
| City | County | |
|---|---|---|
| Population | 189 | 7,943 |
| Population Density | 238 | 2 |
| Median Age | 53.8 | 50.7 |
| People per Household | 2.1 | 2.2 |
| Median Household Income | 60,312 | 47,392 |
| Average Income per Capita | 32,491 | 27,781 |
Seneca is located in Oregon. Seneca, Oregon has a population of 189. Seneca is more family-centric than the surrounding county with 20% households with children. The county percentage for households with children is 18%.
The median household income in Seneca, Oregon is $60,312. The median household income for the surrounding county is $47,392 compared to the national median of $66,222. The median age of people living in Seneca is 53.8 years.
The average high temperature in July is 89.67 degrees, with an average low temperature in January of 21.68 degrees. The annual precipitation is 11.85.