| Boulder to Springfield (Missouri) | 674.11 mi (1,084.88 km) |
| Boulder to Springfield (Ohio) | 1,133.29 mi (1,823.86 km) |
| Boulder to Springfield (Oregon) | 949.20 mi (1,527.59 km) |
| Boulder to Springfield (Tennessee) | 1,024.59 mi (1,648.91 km) |
| Boulder to Springfield (Virginia) | 1,494.80 mi (2,405.65 km) |
| Boulder to Springville (Utah) | 336.65 mi (541.79 km) |
| Boulder to St. Albans (West Virginia) | 1,256.16 mi (2,021.60 km) |
| Boulder to St. Andrews (South Carolina) | 1,389.23 mi (2,235.76 km) |
| Boulder to St. Ann (Missouri) | 798.05 mi (1,284.33 km) |
| Boulder to St. Augustine (Florida) | 1,518.85 mi (2,444.35 km) |
| Boulder to St. Charles (Illinois) | 891.93 mi (1,435.42 km) |
| Boulder to St. Charles (Missouri) | 790.34 mi (1,271.94 km) |
| Boulder to St. Clair Shores (Michigan) | 1,170.15 mi (1,883.18 km) |
| Boulder to St. Cloud (Florida) | 1,587.12 mi (2,554.23 km) |
| Boulder to St. Cloud (Minnesota) | 677.74 mi (1,090.72 km) |
