There are 30 cities in Marion County, Oregon.
Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Population | 2020 Population | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Salem | 1 | 177,928 | 175,942 | 0.28% | 3,636 | 48.9 | City |
| Keizer | 2 | 38,306 | 39,338 | -0.67% | 5,331 | 7.2 | City |
| Woodburn | 3 | 30,051 | 25,979 | 3.51% | 5,129 | 5.9 | City |
| Wilsonville | 4 | 26,221 | 26,717 | -0.47% | 3,473 | 7.6 | City |
| Hayesville | 5 | 22,136 | 22,189 | 0.71% | 7,403 | 3.0 | CDP |
| Four Corners | 6 | 16,199 | 16,491 | 0.11% | 6,628 | 2.4 | CDP |
| Silverton | 7 | 10,294 | 10,480 | -0.46% | 2,935 | 3.5 | City |
| Stayton | 8 | 8,222 | 8,234 | -0.04% | 2,633 | 3.1 | City |
| Aumsville | 9 | 4,136 | 4,247 | -0.67% | 3,663 | 1.1 | City |
| Mount Angel | 10 | 3,438 | 3,401 | 0.26% | 3,026 | 1.1 | City |
| Hubbard | 11 | 3,351 | 3,435 | -0.62% | 4,178 | 0.8 | City |
| Jefferson | 12 | 3,244 | 3,335 | -0.7% | 3,785 | 0.9 | City |
| Sublimity | 13 | 2,893 | 2,968 | -0.65% | 3,084 | 0.9 | City |
| Gervais | 14 | 2,530 | 2,596 | -0.67% | 6,216 | 0.4 | City |
| Turner | 15 | 2,374 | 2,450 | -0.79% | 1,657 | 1.4 | City |
| Mill City | 16 | 1,994 | 1,976 | 0.2% | 2,211 | 0.9 | City |
| Lyons | 17 | 1,206 | 1,208 | -0.08% | 1,394 | 0.9 | City |
| Aurora | 18 | 1,110 | 1,142 | -0.72% | 2,293 | 0.5 | City |
| Donald | 19 | 996 | 1,011 | -0.4% | 2,628 | 0.4 | City |
| Mehama | 20 | 574 | 396 | 3.61% | 1,253 | 0.5 | CDP |
| Labish Village | 21 | 510 | 491 | 1.39% | 9,444 | 0.1 | CDP |
| Gates | 22 | 445 | 552 | -5.72% | 689 | 0.6 | City |
| St. Paul | 23 | 421 | 433 | -0.71% | 1,432 | 0.3 | City |
| Scotts Mills | 24 | 413 | 417 | -0.24% | 1,144 | 0.4 | City |
| Brooks | 25 | 296 | 621 | -2.63% | 580 | 0.5 | CDP |
| Marion | 26 | 291 | 416 | -0.34% | 253 | 1.1 | CDP |
| Butteville | 27 | 288 | 317 | 0.35% | 275 | 1.0 | CDP |
| Detroit | 28 | 183 | 201 | -2.66% | 312 | 0.6 | City |
| Idanha | 29 | 156 | 156 | 0% | 211 | 0.7 | City |
| Barlow | 30 | 138 | 132 | 0.73% | 2,654 | 0.1 | City |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Salem is the largest city in Marion County.
Barlow is the smallest city in Marion County.
There are 30 cities in Marion County, Oregon.