| Duncan to Lake St. Louis (Missouri) | 491.94 mi (791.70 km) |
| Duncan to Lake Station (Indiana) | 755.61 mi (1,216.03 km) |
| Duncan to Lake Stevens (Washington) | 1,551.34 mi (2,496.64 km) |
| Duncan to Lake Stickney (Washington) | 1,553.87 mi (2,500.71 km) |
| Duncan to Lake Tapps (Washington) | 1,530.15 mi (2,462.53 km) |
| Duncan to Lake Wales (Florida) | 1,065.70 mi (1,715.08 km) |
| Duncan to Lake Wylie (South Carolina) | 955.62 mi (1,537.92 km) |
| Duncan to Lake Zurich (Illinois) | 749.71 mi (1,206.55 km) |
| Duncan to Lakeland (Florida) | 1,042.03 mi (1,676.99 km) |
| Duncan to Lakeland (Tennessee) | 466.65 mi (751.00 km) |
| Duncan to Lakeland Highlands (Florida) | 1,045.65 mi (1,682.82 km) |
| Duncan to Lakeland North (Washington) | 1,538.10 mi (2,475.33 km) |
| Duncan to Lakeland South (Washington) | 1,536.37 mi (2,472.54 km) |
| Duncan to Lakeland Village (California) | 1,112.82 mi (1,790.90 km) |
| Duncan to Lakeside (California) | 1,095.74 mi (1,763.43 km) |
