| Pittsburgh to Castle Pines (Colorado) | 1,315.93 mi (2,117.78 km) |
| Pittsburgh to Castle Rock (Colorado) | 1,316.17 mi (2,118.18 km) |
| Pittsburgh to Castro Valley (California) | 2,244.00 mi (3,611.37 km) |
| Pittsburgh to Catalina Foothills (Arizona) | 1,798.28 mi (2,894.05 km) |
| Pittsburgh to Cataño (Puerto Rico) | 1,728.06 mi (2,781.04 km) |
| Pittsburgh to Cathedral City (California) | 2,045.55 mi (3,292.00 km) |
| Pittsburgh to Catonsville (Maryland) | 189.76 mi (305.39 km) |
| Pittsburgh to Cave Spring (Virginia) | 222.09 mi (357.42 km) |
| Pittsburgh to Cayce (South Carolina) | 452.49 mi (728.21 km) |
| Pittsburgh to Cayey (Puerto Rico) | 1,747.66 mi (2,812.59 km) |
| Pittsburgh to Cedar City (Utah) | 1,776.53 mi (2,859.05 km) |
| Pittsburgh to Cedar Falls (Iowa) | 661.01 mi (1,063.79 km) |
| Pittsburgh to Cedar Hill (Texas) | 1,085.49 mi (1,746.93 km) |
| Pittsburgh to Cedar Lake (Indiana) | 394.83 mi (635.42 km) |
| Pittsburgh to Cedar Mill (Oregon) | 2,166.57 mi (3,486.75 km) |
