| Royse City to Isabela (Puerto Rico) | 2,069.02 mi (3,329.76 km) |
| Royse City to Iselin (New Jersey) | 1,321.14 mi (2,126.18 km) |
| Royse City to Isla Vista (California) | 1,354.04 mi (2,179.12 km) |
| Royse City to Issaquah (Washington) | 1,676.05 mi (2,697.34 km) |
| Royse City to Ithaca (New York) | 1,260.59 mi (2,028.73 km) |
| Royse City to Ives Estates (Florida) | 1,083.02 mi (1,742.96 km) |
| Royse City to Jackson (Michigan) | 912.16 mi (1,467.98 km) |
| Royse City to Jackson (Mississippi) | 358.04 mi (576.22 km) |
| Royse City to Jackson (Missouri) | 483.75 mi (778.52 km) |
| Royse City to Jackson (Tennessee) | 465.17 mi (748.62 km) |
| Royse City to Jackson (Wyoming) | 1,065.60 mi (1,714.91 km) |
| Royse City to Jacksonville (Alabama) | 611.79 mi (984.58 km) |
| Royse City to Jacksonville (Arkansas) | 273.71 mi (440.49 km) |
| Royse City to Jacksonville (Florida) | 879.56 mi (1,415.52 km) |
| Royse City to Jacksonville (Illinois) | 576.20 mi (927.30 km) |
