991
- 99101 Addy
- 99102 Albion
- 99103 Almira
- 99105 Benge
- 99109 Chewelah
- 99110 Clayton
- 99111 Colfax
- 99113 Colton
- 99114 Colville
- 99115 Coulee City
- 99116 Coulee Dam
- 99117 Creston
- 99118 Curlew
- 99119 Cusick
- 99121 Danville
- 99122 Davenport
- 99123 Electric City
- 99124 Elmer City
- 99125 Endicott
- 99126 Evans
- 99128 Farmington
- 99129 Fruitland
- 99130 Garfield
- 99131 Gifford
- 99133 Grand Coulee
- 99134 Harrington
- 99135 Hartline
- 99136 Hay
- 99137 Hunters
- 99138 Inchelium
- 99139 Ione
- 99140 Keller
- 99141 Kettle Falls
- 99143 Lacrosse
- 99144 Lamona
- 99146 Laurier
- 99147 Lincoln
- 99148 Loon Lake
- 99149 Malden
- 99150 Malo
- 99151 Marcus
- 99152 Metaline
- 99153 Metaline Falls
- 99154 Mohler
- 99155 Nespelem
- 99156 Newport
- 99157 Northport
- 99158 Oakesdale
- 99159 Odessa
- 99160 Orient
- 99161 Palouse
- 99163 Pullman
- 99164 Pullman
- 99166 Republic
- 99167 Rice
- 99169 Ritzville
- 99170 Rosalia
- 99171 Saint John
- 99173 Springdale
- 99174
- 99176 Thornton
- 99179 Uniontown
- 99180 Usk
- 99181 Valley
- 99185 Wilbur