| Name | Marion County |
| State | Oregon |
| FIPS Code | 41047 |
| County Seat | Salem |
| Timezone | Pacific Daylight Time (PDT) |
| Population (2024) | 349,874 |
| Population Growth Rate(2020-2024) | 1.13% |
| Majority Ethnicity | White 67.08% |
| Public School Majority Ethnicity | Hispanic 47% |
| Partisan Voting Index | Republican:+0 |
| Unemployment Rate (May 2026) | 5.5% |
| Sales Tax Rate (2025) | 0% |
| Area Code(s) | 503 / 971 / 458 / 541 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 67.08% |
| African American | 1.09% |
| Hispanic | 27.46% |
| Asian | 2.05% |
| Native American | 1.25% |
| Hawaiin/Pacific Islander | 1.07% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 42.01% |
| African American | 1.16% |
| Hispanic | 46.97% |
| Asian | 1.61% |
| Native American | 1.07% |
| Hawaiin/Pacific Islander | 2.13% |