| Countyline, Oklahoma | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | USA Oklahoma#USA |
| Pushpin Label: | Countyline |
| Pushpin Map Caption: | Location within the state of Oklahoma |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Oklahoma |
| Subdivision Type2: | County |
| Subdivision Name2: | Carter and Stephens |
| Unit Pref: | Imperial |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 1053 |
| Coordinates: | 34.4486°N -97.5628°W |
| Postal Code Type: | ZIP codes |
| Postal Code: | 73425 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1091753 |
Countyline, or County Line, is a rural unincorporated community on the Stephens-Carter county line in south central Oklahoma, United States. It is north of State Highway 7. The post office opened June 29, 1928.[1]