| Harker Heights to Cold Springs (Nevada) | 1,387.33 mi (2,232.69 km) |
| Harker Heights to Coldwater (Michigan) | 1,026.99 mi (1,652.78 km) |
| Harker Heights to Colesville (Maryland) | 1,288.12 mi (2,073.03 km) |
| Harker Heights to College (Alaska) | 3,148.52 mi (5,067.06 km) |
| Harker Heights to College Park (Georgia) | 789.13 mi (1,269.98 km) |
| Harker Heights to College Park (Maryland) | 1,289.81 mi (2,075.75 km) |
| Harker Heights to College Station (Texas) | 86.41 mi (139.07 km) |
| Harker Heights to Collegedale (Tennessee) | 779.19 mi (1,253.99 km) |
| Harker Heights to Colleyville (Texas) | 130.02 mi (209.24 km) |
| Harker Heights to Collierville (Tennessee) | 536.14 mi (862.84 km) |
| Harker Heights to Collinsville (Illinois) | 681.11 mi (1,096.14 km) |
| Harker Heights to Colonia (New Jersey) | 1,457.37 mi (2,345.42 km) |
| Harker Heights to Colonial Heights (Virginia) | 1,231.45 mi (1,981.82 km) |
| Harker Heights to Colonial Park (Pennsylvania) | 1,327.69 mi (2,136.70 km) |
| Harker Heights to Colorado Springs (Colorado) | 672.95 mi (1,083.01 km) |
