| distance | reference number | name | latitude | longitude |
| 520.5 | 1772 | Marysville, Quilceda Creek, Washington | 48.045 | -122.212 |
| 522.4 | 945 | Everett, Washington | 47.98 | -122.223 |
| 523.1 | 121 | Ayock Point, Washington | 47.5083 | -122.053 |
| 524.4 | 3147 | Tulalip, Washington | 48.065 | -122.288 |
| 524.8 | 223 | Bellingham Bay, Washington | 48.745 | -122.495 |
| 525.8 | 2943 | Stanwood, Washington | 48.2333 | -122.367 |
| 526.2 | 566 | Chuckanut Bay, Bellingham Bay, Washington | 48.6667 | -122.5 |
| 527.6 | 1476 | Kayak Point, Washington | 48.1367 | -122.368 |
| 530.1 | 2674 | Sandy Point, Whidbey Island, Washington | 48.035 | -122.377 |
| 530.4 | 3014 | Swinomish Channel Entrance, Padilla Bay, Washington | 48.4667 | -122.517 |
| 530.5 | 1568 | La Conner, Swinomish Channel, Washington | 48.3917 | -122.497 |
| 530.8 | 1109 | Glendale, Whidbey Island, Washington | 47.94 | -122.357 |
| 532.9 | 3154 | Turner Bay, Similk Bay, Washington | 48.445 | -122.555 |
| 533.3 | 2832 | Sneeoosh Point, Washington | 48.4 | -122.548 |
| 534.8 | 884 | Edmonds, Washington | 47.8133 | -122.383 |
| 535.1 | 1127 | Gooseberry Point, Hale Passage, Washington | 48.7317 | -122.67 |
| 535.3 | 58 | Anacortes, Guemes Channel, Washington | 48.5167 | -122.617 |
| 535.6 | 22 | Ala Spit, Washington | 48.3967 | -122.587 |
| 536.4 | 974 | Ferndale, Strait of Georgia, Washington | 48.8333 | -122.717 |
| 536.5 | 2671 | Sandy Point, Lummi Bay, Washington | 48.79 | -122.708 |
| 536.8 | 2725 | Seattle, Puget Sound, Washington | 47.605 | -122.338 |
| 536.9 | 3409 | Yokeko Point, Deception Pass, Washington | 48.4133 | -122.615 |
| 537.2 | 274 | Blaine, Semiahmoo Bay, Strait of Georgia, Washingto | 48.9917 | -122.765 |
| 537.4 | 838 | Duwamish Waterway, Eighth Ave. South, Seattle, Wash | 47.535 | -122.322 |
| 537.5 | 645 | Cornet Bay, Deception Pass, Washington | 48.4017 | -122.623 |