| San Marino to Hutchinson (Kansas) | 1,157.97 mi (1,863.57 km) |
| San Marino to Hutchinson (Minnesota) | 1,459.66 mi (2,349.10 km) |
| San Marino to Hutto (Texas) | 1,223.87 mi (1,969.63 km) |
| San Marino to Hyattsville (Maryland) | 2,289.50 mi (3,684.60 km) |
| San Marino to Hybla Valley (Virginia) | 2,283.90 mi (3,675.58 km) |
| San Marino to Idaho Falls (Idaho) | 724.56 mi (1,166.06 km) |
| San Marino to Idylwood (Virginia) | 2,276.47 mi (3,663.62 km) |
| San Marino to Ilchester (Maryland) | 2,298.08 mi (3,698.40 km) |
| San Marino to Immokalee (Florida) | 2,240.09 mi (3,605.07 km) |
| San Marino to Imperial (California) | 171.19 mi (275.51 km) |
| San Marino to Imperial Beach (California) | 121.71 mi (195.88 km) |
| San Marino to Independence (Kentucky) | 1,881.99 mi (3,028.77 km) |
| San Marino to Independence (Missouri) | 1,357.60 mi (2,184.84 km) |
| San Marino to Indian Trail (North Carolina) | 2,119.39 mi (3,410.83 km) |
| San Marino to Indiana (Pennsylvania) | 2,167.39 mi (3,488.08 km) |
