| Gig Harbor to Silver Firs (Washington) | 42.02 mi (67.62 km) |
| Gig Harbor to Silver Spring (Maryland) | 2,332.19 mi (3,753.29 km) |
| Gig Harbor to Silver Springs Shores (Florida) | 2,497.96 mi (4,020.08 km) |
| Gig Harbor to Silverdale (Washington) | 23.23 mi (37.38 km) |
| Gig Harbor to Silverton (Oregon) | 161.38 mi (259.72 km) |
| Gig Harbor to Simi Valley (California) | 924.81 mi (1,488.34 km) |
| Gig Harbor to Simpsonville (South Carolina) | 2,245.07 mi (3,613.09 km) |
| Gig Harbor to Sioux City (Iowa) | 1,318.19 mi (2,121.43 km) |
| Gig Harbor to Sioux Falls (South Dakota) | 1,274.87 mi (2,051.71 km) |
| Gig Harbor to Skokie (Illinois) | 1,735.64 mi (2,793.25 km) |
| Gig Harbor to Sleepy Hollow (New York) | 2,410.63 mi (3,879.53 km) |
| Gig Harbor to Slidell (Louisiana) | 2,099.04 mi (3,378.08 km) |
| Gig Harbor to Smithfield (North Carolina) | 2,396.38 mi (3,856.60 km) |
| Gig Harbor to Smithfield (Utah) | 651.19 mi (1,047.99 km) |
| Gig Harbor to Smithville (Missouri) | 1,500.68 mi (2,415.11 km) |
