Founded in 1882, Crook County is one of 36 counties in the state of Oregon. Historically, Crook County was formed from Southern part of Wasco County. The city of Prineville is the county seat. With FIPS code of 13, Crook County has a population of 25,739 and area of 2,980 square miles (7,718 km2).
List of all cities in Crook County, OR alphabetically
| City/Town | Postal Code | Area Code |
| Paulina, OR | 97751 | 541 |
| Post, OR | 97752 | 541 |
| Powell Butte, OR | 97753 | 541 |
| Prineville, OR | 97754 | 541 |