| Boulder to Punta Gorda (Florida) | 1,608.10 mi (2,587.99 km) |
| Boulder to Puyallup (Washington) | 982.34 mi (1,580.92 km) |
| Boulder to Queen Creek (Arizona) | 586.10 mi (943.24 km) |
| Boulder to Queens (New York) | 1,647.23 mi (2,650.97 km) |
| Boulder to Quincy (Illinois) | 733.76 mi (1,180.87 km) |
| Boulder to Quincy (Massachusetts) | 1,776.01 mi (2,858.22 km) |
| Boulder to Raceland (Louisiana) | 1,089.38 mi (1,753.19 km) |
| Boulder to Racine (Wisconsin) | 921.46 mi (1,482.94 km) |
| Boulder to Radcliff (Kentucky) | 1,047.30 mi (1,685.47 km) |
| Boulder to Radford (Virginia) | 1,344.45 mi (2,163.69 km) |
| Boulder to Rahway (New Jersey) | 1,623.70 mi (2,613.09 km) |
| Boulder to Raleigh (North Carolina) | 1,473.06 mi (2,370.65 km) |
| Boulder to Ramona (California) | 804.35 mi (1,294.48 km) |
| Boulder to Ramsey (Minnesota) | 699.50 mi (1,125.74 km) |
| Boulder to Ramsey (New Jersey) | 1,626.20 mi (2,617.11 km) |
