| County : | Marion County |
| State : | Oregon (OR) |
| Land Area : | 1,182.32 sq mi |
| Water Area : | 10.18 sq mi |
| Latitude : | 44.9008984 |
| Longitude : | -122.5762602 |
| Population (2010): | 315,335 |
| Population Estimate (2012) : | 315,391 |
| Population Density : | 266.71/sq mi |
| Housing Units (2012) : | 120,948 |
| Median Household Income (2012) : | $46,654 (Oregon : $50,036, USA : $53,046) |
| Median Family Income (2012) : | $54,487 (Oregon : $61,438, USA : $64,585) |
| Median House Price (2012) : | $201,100 (Oregon : $246,100, USA : $181,400) |
Marion County Cities / Towns
| Aumsville City (3,584) | Aurora City (918) | Brooks (398) |
| Butteville (265) | Detroit City (202) | Donald City (979) |
| Four Corners (15,947) | Gates City (471) | Gervais City (2,464) |
| Hayesville (19,936) | Hubbard City (3,173) | Idanha City (134) |
| Jefferson City (3,098) | Keizer City (36,478) | Labish Village (412) |
| Marion (313) | Mehama (292) | Mill City (1,855) |
| Mount Angel City (3,286) | St. Paul City (421) | Salem City (154,637) |
| Scotts Mills City (357) | Silverton City (9,222) | Stayton City (7,644) |
| Sublimity City (2,681) | Turner City (1,854) | Woodburn City (24,080) |
Marion County Zip Codes
| 97002 (5,623) | 97020 (791) | 97026 (3,815) |
| 97032 (5,043) | 97071 (28,803) | 97137 (1,307) |
| 97301 (53,518) | 97302 (37,131) | 97303 (38,663) |
| 97305 (40,176) | 97306 (27,360) | 97317 (24,355) |
| 97325 (6,614) | 97342 (267) | 97346 (883) |
| 97350 (182) | 97352 (5,604) | 97358 (2,576) |
| 97360 (2,249) | 97362 (4,338) | 97373 (178) |
| 97375 (1,252) | 97381 (14,711) | 97383 (9,587) |
| 97384 (23) | 97385 (3,257) | 97392 (5,191) |