| Harker Heights to Clemson (South Carolina) | 895.47 mi (1,441.12 km) |
| Harker Heights to Clermont (Florida) | 969.69 mi (1,560.57 km) |
| Harker Heights to Cleveland (Mississippi) | 443.99 mi (714.53 km) |
| Harker Heights to Cleveland (Ohio) | 1,140.90 mi (1,836.09 km) |
| Harker Heights to Cleveland (Tennessee) | 791.46 mi (1,273.73 km) |
| Harker Heights to Cleveland Heights (Ohio) | 1,147.26 mi (1,846.34 km) |
| Harker Heights to Cliffside Park (New Jersey) | 1,478.82 mi (2,379.93 km) |
| Harker Heights to Clifton (Colorado) | 824.16 mi (1,326.36 km) |
| Harker Heights to Clifton (New Jersey) | 1,471.43 mi (2,368.04 km) |
| Harker Heights to Clinton (Iowa) | 850.47 mi (1,368.71 km) |
| Harker Heights to Clinton (Maryland) | 1,285.82 mi (2,069.33 km) |
| Harker Heights to Clinton (Mississippi) | 438.51 mi (705.72 km) |
| Harker Heights to Clinton (Utah) | 1,062.03 mi (1,709.18 km) |
| Harker Heights to Clive (Iowa) | 759.99 mi (1,223.09 km) |
| Harker Heights to Cloquet (Minnesota) | 1,116.60 mi (1,797.00 km) |
