| Rio Grande City to Keene (New Hampshire) | 1,878.84 mi (3,023.71 km) |
| Rio Grande City to Keizer (Oregon) | 1,857.13 mi (2,988.76 km) |
| Rio Grande City to Keller (Texas) | 462.76 mi (744.73 km) |
| Rio Grande City to Kelso (Washington) | 1,898.18 mi (3,054.83 km) |
| Rio Grande City to Kemp Mill (Maryland) | 1,533.29 mi (2,467.59 km) |
| Rio Grande City to Ken Caryl (Colorado) | 981.32 mi (1,579.28 km) |
| Rio Grande City to Kendale Lakes (Florida) | 1,143.05 mi (1,839.56 km) |
| Rio Grande City to Kendall (Florida) | 1,146.58 mi (1,845.23 km) |
| Rio Grande City to Kendall Park (New Jersey) | 1,693.09 mi (2,724.76 km) |
| Rio Grande City to Kendall West (Florida) | 1,141.14 mi (1,836.49 km) |
| Rio Grande City to Kenmore (New York) | 1,603.70 mi (2,580.90 km) |
| Rio Grande City to Kenmore (Washington) | 1,946.04 mi (3,131.85 km) |
| Rio Grande City to Kenner (Louisiana) | 578.58 mi (931.13 km) |
| Rio Grande City to Kennesaw (Georgia) | 997.65 mi (1,605.57 km) |
| Rio Grande City to Kennett (Missouri) | 854.84 mi (1,375.73 km) |
