| Walnut Creek to Indianapolis (Indiana) | 1,923.12 mi (3,094.97 km) |
| Walnut Creek to Indianola (Iowa) | 1,526.90 mi (2,457.31 km) |
| Walnut Creek to Indio (California) | 434.24 mi (698.83 km) |
| Walnut Creek to Inglewood (California) | 342.09 mi (550.54 km) |
| Walnut Creek to Inkster (Michigan) | 2,051.14 mi (3,300.99 km) |
| Walnut Creek to Inver Grove Heights (Minnesota) | 1,567.43 mi (2,522.54 km) |
| Walnut Creek to Inwood (New York) | 2,557.61 mi (4,116.08 km) |
| Walnut Creek to Iona (Florida) | 2,450.19 mi (3,943.21 km) |
| Walnut Creek to Ionia (Michigan) | 1,959.05 mi (3,152.79 km) |
| Walnut Creek to Iowa City (Iowa) | 1,631.92 mi (2,626.33 km) |
| Walnut Creek to Irmo (South Carolina) | 2,279.88 mi (3,669.12 km) |
| Walnut Creek to Irondale (Alabama) | 1,995.16 mi (3,210.90 km) |
| Walnut Creek to Ironton (Ohio) | 2,120.64 mi (3,412.84 km) |
| Walnut Creek to Irvine (California) | 377.25 mi (607.13 km) |
| Walnut Creek to Irving (Texas) | 1,449.80 mi (2,333.23 km) |
