| Post Office Name | City/State | Address | Phone Number | Action |
|---|---|---|---|---|
| Almira Post Office | Almira, WA 99103 | 102 N 3rd St | 5096392541 | View Details Get Directions |
| Beverly Post Office | Beverly, WA 99321 | 20476 Sw B St | 5099324744 | View Details Get Directions |
| Coulee City Post Office | Coulee City, WA 99115 | 101 N 4th St | 5096325751 | View Details Get Directions |
| Coulee Dam Post Office | Coulee Dam, WA 99116 | 402 Mead Way | 5096330390 | View Details Get Directions |
| Electric City Post Office | Electric City, WA 99123 | 5 W Coulee Blvd | 5096330606 | View Details Get Directions |
| Ephrata Post Office | Ephrata, WA 98823 | 119 1st Ave Nw | 5097548990 | View Details Get Directions |
| Grand Coulee Post Office | Grand Coulee, WA 99133 | 407 Midway Ave | 5096330781 | View Details Get Directions |
| Hartline Post Office | Hartline, WA 99135 | 867 Willard St | 5096392661 | View Details Get Directions |
| Marlin Post Office | Marlin, WA 98832 | 174 N Urquhart Ave | 5093452263 | View Details Get Directions |
| Moses Lake Post Office | Moses Lake, WA 98837 | 223 W 3rd Ave | 5097646701 | View Details Get Directions |
| Othello Post Office | Othello, WA 99344 | 602 E Main St | 5094889955 | View Details Get Directions |
| Quincy Post Office | Quincy, WA 98848 | 20 C St Sw | 5097872613 | View Details Get Directions |
| Royal City Post Office | Royal City, WA 99357 | 132 Evergreen Ave Nw | 5093462241 | View Details Get Directions |
| Soap Lake Post Office | Soap Lake, WA 98851 | 511 S Division St | 5092461641 | View Details Get Directions |
| Stratford Post Office | Stratford, WA 98853 | 9800 Road 23 Ne | 5093450104 | View Details Get Directions |
| Warden Post Office | Warden, WA 98857 | 201 E 1st St | 5093492364 | View Details Get Directions |
| Wilson Creek Post Office | Wilson Creek, WA 98860 | 223 Railroad St | 5093452561 | View Details Get Directions |
| Public Collection Box | Mattawa, WA 99349 | 111 Government Rd | -- | Get Directions |
| Public Collection Box | Coulee Dam, WA 99116 | 1114 Central Dr | -- | Get Directions |
| Public Collection Box | Ephrata, WA 98823 | 1150 Basin St Sw | -- | Get Directions |
| Public Collection Box | Royal City, WA 99357 | 122 Frontier Way W | -- | Get Directions |
| Public Collection Box | Moses Lake, WA 98837 | 1400 S Pioneer Way | -- | Get Directions |
| Public Collection Box | Moses Lake, WA 98837 | 2908 W Broadway Ave | -- | Get Directions |
| Public Collection Box | Coulee Dam, WA 99116 | 300 Columbia Ave | -- | Get Directions |
| Public Collection Box | Moses Lake, WA 98837 | 321 S Balsam St | -- | Get Directions |
| Public Collection Box | Ephrata, WA 98823 | 50 Alder St Nw | -- | Get Directions |
| Public Collection Box | Moses Lake, WA 98837 | 5053 Airway Dr Ne | -- | Get Directions |
| Public Collection Box | Moses Lake, WA 98837 | 711 N Stratford Rd | -- | Get Directions |
| Public Collection Box | Moses Lake, WA 98837 | 801 W 3rd Ave | -- | Get Directions |
| Public Collection Box | Moses Lake, WA 98837 | 900 S Juniper Dr | -- | Get Directions |
