Founded in 1901, Canadian County is one of 77 counties in the state of Oklahoma. Historically, Canadian County was formed from part of Cheyenne and Arapahoreservation. The city of El Reno is the county seat. With FIPS code of 17, Canadian County has a population of 161,737 and area of 900 square miles (2,331 km2).
List of all cities in Canadian County, OK alphabetically
| City/Town | Postal Code | Area Code |
| Calumet, OK | 73014 | 405 |
| Concho, OK | 73022 | 405 |
| El Reno, OK | 73036 | 405 |
| Mustang, OK | 73064 | 405 |
| Piedmont, OK | 73078 | 405 |
| Union City, OK | 73090 | 405 |
| Yukon, OK | 73085 | 405 |
| 73099 | 405 |