Population and area of selected islands of Washington state.
| Island Name | County | Population (Census 2000) | Area (sq miles) | Area (km²) |
|---|---|---|---|---|
| Anderson | Pierce | 900 | 7.746 | 20.06 |
| Bainbridge | Kitsap | 20,238 | 27.6 | 71.5 |
| Blake | King | 0 | 0.74 | 1.9 |
| Blakely | San Juan | 56 | 6.5 | 16.85 |
| Brown | San Juan | 13 | 0.66 | 0.25 |
| Camano | Island / Snohomish | 13,358 | 40.55 | 105.03 |
| Chief Timothy | Asotin | 0 | .309 | .80 |
| Crane | San Juan | 20 | 0.37 | 0.96 |
| Cypress | Skagit | 40 | 6.23 | 16.12 |
| Decatur | San Juan | 71 | 3.52 | 9.13 |
| Edmount | Snohomish | 0 | unknown | unknown |
| Eliza | Whatcom | 10 | 0.22 | 0.57 |
| Fidalgo | Skagit | 20,700 | 41.19 | 106.68 |
| Fox | Pierce | 2,803 | 5.2 | 13.5 |
| Gedney | Snohomish | 260 | 0.68 | 1.77 |
| Goose | San Juan | 0 | 0.006 | 0.015 |
| Guemes | Skagit | 563 | 8.31 | 21.53 |
| Harbor (Artificial) | King | 3 | 0.64 | 1.65 |
| Harstine | Mason | 1002 | 18.65 | 48.3 |
| Henry | San Juan | 0 | 1.59 | 4.13 |
| Herron | Pierce | 152 | 0.48 | 1.23 |
| Indian | Jefferson | 44 | 4.36 | 11.28 |
| James | San Juan | 0 | 0.18 | 0.47 |
| Johns | San Juan | 5 | 0.35 | 0.91 |
| Jones | San Juan | 0 | 0.3 | 0.77 |
| Ketron | Pierce | 24 | 0.34 | 0.89 |
| Long | Pacific | 0 | 8.37 | 21.67 |
| Lopez | San Juan | 2,177 | 29.81 | 77.2 |
| Lummi | Whatcom | 822 | 9.26 | 23.97 |
| Marrowstone | Jefferson | 837 | 6.3 | 16.4 |
| McNeil | Pierce | 1,516 | 6.63 | 17.18 |
| Mercer | King | 22,036 | 6.4 | 16.5 |
| Orcas | San Juan | 4,453 | 57.3 | 148.4 |
| Pearl | San Juan | 7 | 0.06 | 0.15 |
| Portage | Whatcom | 0 | 1.47 | 3.8 |
| Protection | Jefferson | 0 | 0.59 | 1.53 |
| Puget | Wahkiakum | 798 | 7.48 | 19.365 |
| Raft | Pierce | 489 | 0.31 | 0.81 |
| Reach | Mason | 149 | 0.14 | 0.37 |
| San Juan | San Juan | 6,822 | 55.05 | 142.59 |
| Shaw | San Juan | 235 | 7.71 | 19.95 |
| Sheep | San Juan | 2 | 0.002 | 0.006 |
| Sinclair | Skagit | 0 | 1.59 | 4.11 |
| Spieden | San Juan | 0 | 0.81 | 2.09 |
| Squaxin | Mason | 0 | 2.22 | 5.74 |
| Steamboat Island | Thurston | 41 | .01 | .02 |
| Stretch | Mason | 119 | 0.47 | 1.22 |
| Stuart | San Juan | 47 | 2.88 | 7.46 |
| Sucia | San Juan | 4 | 0.87 | 2.26 |
| Tatoosh | Clallam | 0 | 0.06 | 0.16 |
| Vashon-Maury | King | 10,123 | 37 | 95.8 |
| Vendovi | Skagit | 2 | 0.34 | 0.89 |
| Waadah | Clallam | 0 | 0.06 | 0.16 |
| Waldron | San Juan | 104 | 4.6 | 11.91 |
| Whidbey | Island | 58,211 | 168.67 | 435.85 |