| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Factoria | city | Washington | United States | 47.58 | -122.17 | 213 | |
| Fair Harbor | city | Washington | United States | 47.34 | -122.83 | 3 | |
| Fairbanks | city | Washington | United States | 47.22 | -117.22 | 2522 | |
| Fairchild | city | Washington | United States | 47.63 | -117.67 | 2509 | |
| Fairfax | city | Washington | United States | 47.01 | -122.02 | 1758 | |
| Fairfield | city | Washington | United States | 47.39 | -117.17 | 2598 | |
| Fairfield Estates Mobile Home Park | city | Washington | United States | 47.17 | -122.47 | 298 | |
| Fairfield Mobile Home Park | city | Washington | United States | 47.18 | -122.48 | 298 | |
| Fairfield Mobile Home Park | city | Washington | United States | 48.89 | -122.61 | 108 | |
| Fairhaven | city | Washington | United States | 48.72 | -122.51 | 131 | |
| Fairlane Terrace Mobile Home Park | city | Washington | United States | 47.16 | -122.46 | 308 | |
| Fairmont | city | Washington | United States | 47.90 | -122.25 | 830 | |
| Fairmont | city | Washington | United States | 47.99 | -122.87 | 830 | |
| Fairview | city | Washington | United States | 47.84 | -119.51 | 2509 | |
| Fairview | city | Washington | United States | 47.62 | -122.67 | 72 | |
| Fairview | city | Washington | United States | 48.36 | -117.72 | 2509 | |
| Fairway Estates Senior Mobile Home Park | city | Washington | United States | 47.91 | -122.25 | 830 | |
| Fairwood | city | Washington | United States | 47.45 | -122.16 | 830 | |
| Fairwood | city | Washington | United States | 47.77 | -117.42 | 1788 | |
| Fall City | city | Washington | United States | 47.57 | -121.89 | 108 | |
| Fall City Mobile Park | city | Washington | United States | 47.57 | -121.89 | 108 | |
| Fallon | city | Washington | United States | 46.83 | -117.12 | 2598 | |
| Fargher Lake | city | Washington | United States | 45.89 | -122.51 | 830 | |
| Farmer | city | Washington | United States | 47.61 | -119.81 | 2509 | |
| Farmington | city | Washington | United States | 47.09 | -117.04 | 2700 | |
| Farrington | city | Washington | United States | 46.54 | -118.58 | 830 | |
| Farris | city | Washington | United States | 47.69 | -120.32 | 997 | |
| Farron | city | Washington | United States | 46.40 | -120.52 | 830 | |
| Fauntleroy | city | Washington | United States | 47.52 | -122.39 | 190 | |
| Fayette | city | Washington | United States | 46.65 | -123.12 | 203 | |
| Federal Way | city | Washington | United States | 47.32 | -122.31 | 830 | |
| Felida | city | Washington | United States | 45.71 | -122.71 | 200 | |
| Feriton | city | Washington | United States | 47.67 | -122.20 | 196 | |
| Fern Heath | city | Washington | United States | 47.40 | -122.41 | 259 | |
| Fern Hill | city | Washington | United States | 47.18 | -122.43 | 393 | |
| Fern Prairie | city | Washington | United States | 45.64 | -122.40 | 830 | |
| Ferncliff | city | Washington | United States | 47.64 | -122.51 | 101 | |
| Ferndale | city | Washington | United States | 48.85 | -122.59 | 22 | |
| Ferndale Mobile Village | city | Washington | United States | 48.85 | -122.61 | 59 | |
| Fernwood | city | Washington | United States | 47.51 | -122.65 | 200 | |
| Fidalgo | city | Washington | United States | 48.48 | -122.57 | 98 | |
| Fife | city | Washington | United States | 47.24 | -122.36 | 131 | |
| Fife Heights | city | Washington | United States | 47.26 | -122.35 | 98 | |
| Finley | city | Washington | United States | 46.15 | -119.03 | 393 | |
| Finn Hill | city | Washington | United States | 47.72 | -122.23 | 252 | |
| Fir Acres Mobile Home Park | city | Washington | United States | 47.14 | -122.50 | 298 | |
| Fir Lane Valley Mobile Home Park | city | Washington | United States | 47.12 | -122.33 | 400 | |
| Fir Meadows Mobile Home Park | city | Washington | United States | 47.08 | -122.34 | 830 | |
| Fir Tree | city | Washington | United States | 46.96 | -122.78 | 285 | |
| Fircrest | city | Washington | United States | 47.24 | -122.52 | 298 | |
| Firdale | city | Washington | United States | 46.62 | -123.57 | 252 | |
| Firdale | city | Washington | United States | 47.78 | -122.36 | 396 | |
| Firloch | city | Washington | United States | 47.70 | -122.17 | 196 | |
| Firwest Mobile Home Park | city | Washington | United States | 48.12 | -123.48 | 232 | |
| Firwood | city | Washington | United States | 45.93 | -120.91 | 2509 | |
| Firwood Lane Mobile Home Park | city | Washington | United States | 47.71 | -122.22 | 65 | |
| Firwood Mobile Home Park | city | Washington | United States | 47.13 | -122.45 | 328 | |
| Fish Town | city | Washington | United States | 48.36 | -122.47 | 6 | |
| Fisher | city | Washington | United States | 45.59 | -122.50 | 200 | |
| Fishtrap | city | Washington | United States | 47.39 | -117.83 | 2509 | |
| Five Corners | city | Washington | United States | 45.68 | -122.58 | 200 | |
| Five Corners | city | Washington | United States | 47.46 | -122.33 | 203 | |
| Five Corners | city | Washington | United States | 46.50 | -118.87 | 997 | |
| Five Corners | city | Washington | United States | 46.93 | -122.59 | 374 | |
| Five Points | city | Washington | United States | 46.08 | -118.11 | 2798 | |
| Flaig | city | Washington | United States | 47.16 | -117.27 | 2598 | |
| Flandersville | city | Washington | United States | 46.15 | -123.30 | 3 | |
| Fletcher | city | Washington | United States | 46.87 | -118.32 | 1738 | |
| Fletcher Bay | city | Washington | United States | 47.64 | -122.58 | 180 | |
| Flint | city | Washington | United States | 46.45 | -120.35 | 879 | |
| Florence | city | Washington | United States | 48.22 | -122.33 | 32 | |
| Fobes Hill | city | Washington | United States | 47.95 | -122.12 | 196 | |
| Foothills Senior Mobile Home Park | city | Washington | United States | 47.44 | -120.34 | 830 | |
| Forbes | city | Washington | United States | 47.11 | -123.13 | 239 | |
| Ford | city | Washington | United States | 47.91 | -117.81 | 1837 | |
| Fordair | city | Washington | United States | 47.64 | -119.27 | 1679 | |
| Fords Prairie | city | Washington | United States | 46.74 | -122.99 | 200 | |
| Forest | city | Washington | United States | 46.60 | -122.86 | 400 | |
| Forest Beach | city | Washington | United States | 47.29 | -122.69 | 3 | |
| Forest Beach | city | Washington | United States | 47.38 | -122.95 | 206 | |
| Forest Glade | city | Washington | United States | 47.98 | -121.97 | 400 | |
| Forest Grove Mobile Home Park | city | Washington | United States | 48.13 | -122.21 | 98 | |
| Forest Ridge | city | Washington | United States | 48.77 | -122.43 | 314 | |
| Forest View Senior 55 Plus Community Mobile Home Park | city | Washington | United States | 47.05 | -123.30 | 396 | |
| Forest Villa Manor Mobile Home Park | city | Washington | United States | 47.28 | -122.17 | 200 | |
| Forks | city | Washington | United States | 47.95 | -124.39 | 354 | |
| Forks Mobile Home Park | city | Washington | United States | 47.95 | -124.38 | 341 | |
| Fort Canby | city | Washington | United States | 46.28 | -124.05 | 3 | |
| Fort Casey | city | Washington | United States | 48.16 | -122.68 | 13 | |
| Fort Flagler | city | Washington | United States | 48.10 | -122.70 | 0 | |
| Fort Knox Mobile Home Park | city | Washington | United States | 48.38 | -122.62 | 357 | |
| Fort Nisqually | city | Washington | United States | 47.30 | -122.53 | 200 | |
| Fort Rains | city | Washington | United States | 45.65 | -121.92 | 255 | |
| Fort Spokane | city | Washington | United States | 47.90 | -118.31 | 1669 | |
| Fort Ward | city | Washington | United States | 47.58 | -122.52 | 200 | |
| Fortson | city | Washington | United States | 48.27 | -121.73 | 830 | |
| Fortuna | city | Washington | United States | 47.58 | -122.22 | 118 | |
| Foster | city | Washington | United States | 47.48 | -122.28 | 200 | |
| Four Corners | city | Washington | United States | 48.05 | -122.82 | 170 | |
| Four Corners | city | Washington | United States | 47.82 | -122.64 | 206 | |
| Four Corners | city | Washington | United States | 46.92 | -122.57 | 387 | |
| Four Corners Olympic Mobile Village | city | Washington | United States | 48.05 | -122.82 | 216 | |
| Four Lakes | city | Washington | United States | 47.56 | -117.59 | 2509 | |
| Fourth Avenue West Estates Mobile Home Park | city | Washington | United States | 47.90 | -122.24 | 830 | |
| Fox Chase Mobile Home Park | city | Washington | United States | 47.09 | -122.42 | 400 | |
| Fox Island | city | Washington | United States | 47.26 | -122.64 | 137 | |
| Fox Island | city | Washington | United States | 47.25 | -122.63 | 298 | |
| Foy | city | Washington | United States | 47.73 | -122.35 | 400 | |
| Fragaria | city | Washington | United States | 47.46 | -122.53 | 3 | |
| Frances | city | Washington | United States | 46.54 | -123.50 | 400 | |
| Francis Mobile Home Court | city | Washington | United States | 47.18 | -122.48 | 298 | |
| Frankfort | city | Washington | United States | 46.28 | -123.76 | 0 | |
| Franklin | city | Washington | United States | 47.30 | -121.95 | 830 | |
| Franklin Pierce Mobile Estates | city | Washington | United States | 47.15 | -122.40 | 393 | |
| Frederickson | city | Washington | United States | 47.10 | -122.36 | 400 | |
| Fredonia | city | Washington | United States | 48.45 | -122.44 | 13 | |
| Freedom | city | Washington | United States | 47.38 | -117.38 | 2545 | |
| Freeland | city | Washington | United States | 48.01 | -122.53 | 213 | |
| Freeman | city | Washington | United States | 47.52 | -117.20 | 2598 | |
| Freeway Place Mobile Home Park | city | Washington | United States | 47.89 | -122.22 | 400 | |
| Fremont | city | Washington | United States | 47.66 | -122.36 | 118 | |
| Friday Harbor | city | Washington | United States | 48.53 | -123.02 | 101 | |
| Friendly Village of Redmond Mobile Home Park | city | Washington | United States | 47.68 | -122.09 | 200 | |
| Frisken Wye | city | Washington | United States | 47.23 | -123.48 | 400 | |
| Frontier | city | Washington | United States | 49.00 | -117.83 | 2509 | |
| Frontier Manor Mobile Home Park | city | Washington | United States | 47.98 | -122.11 | 383 | |
| Fruitland | city | Washington | United States | 48.07 | -118.20 | 1860 | |
| Fruitland Gardens Mobile Home Park | city | Washington | United States | 47.12 | -122.34 | 400 | |
| Fruitvale | city | Washington | United States | 46.62 | -120.55 | 1177 | |
| Fryelands | city | Washington | United States | 47.87 | -122.01 | 114 | |
| Fuller | city | Washington | United States | 46.97 | -123.47 | 200 | |
| Furport | city | Washington | United States | 48.24 | -117.18 | 2040 |