Founded in 1847, Linn County is one of 36 counties in the state of Oregon. Historically, Linn County was formed from Southern portion of Champoeg (later Marion) County. The city of Albany is the county seat. With FIPS code of 43, Linn County has a population of 129,839 and area of 2,291 square miles (5,934 km2).
List of all cities in Linn County, OR alphabetically
| City/Town | Postal Code | Area Code |
| Albany, OR | 97321 | 541 |
| 97322 | 541 | |
| Brownsville, OR | 97327 | 541 |
| Cascadia, OR | 97329 | 541 |
| Crabtree, OR | 97335 | 541 |
| Crawfordsville, OR | 97336 | 541 |
| Foster, OR | 97345 | 541 |
| Halsey, OR | 97348 | 541 |
| Harrisburg, OR | 97446 | 541 |
| Lebanon, OR | 97355 | 541 |
| Lyons, OR | 97358 | 503/971 |
| Mill City, OR | 97360 | 503/971 |
| Scio, OR | 97374 | 503/971 |
| Shedd, OR | 97377 | 541 |
| Sweet Home, OR | 97386 | 541 |
| Tangent, OR | 97389 | 541 |