Commercial Pest Control in Columbia County, WA | Reliable & Professional Service

Cities and Zip Codes in Columbia County, WA

Columbia County is a county located in the U.S. state of Washington. As of the 2020 census, the population was 3,952, making it the second-least populous county in Washington. The county seat and largest city is Dayton. The county was created out of Walla Walla County on November 11, 1875, and is named after the Columbia River (which does not flow through the county). Columbia County is included in the Walla Walla, WA Metropolitan Statistical Area.

Seattle

98109 98108 98104 98107 98106 98101 98103 98102 98105 98154 98122 98121 98126 98125 98178 98174 98177 98144 98146 98195 98199 98118 98119 98116 98117 98115 98112 98164 98134 98136 98133 98111 98113 98114 98124 98127 98129 98139 98141 98145 98161 98165 98170 98175 98181 98185 98191 98194

Spokane

99201 99203 99202 99205 99204 99207 99208 99258 99224 99223 99001 99212 99209 99210 99219 99220 99252 99256 99260

Kennewick

99337 99336 99338

Bremerton

98312 98314 98310 98337

Tacoma

98422 98403 98404 98405 98408 98409 98402 98406 98407 98466 98465 98416 98418 98444 98421 98401 98411 98412 98413 98415 98417 98419 98448 98471 98481 98490

Olympia

98502 98501 98506 98504 98507 98508

Vancouver

98664 98665 98660 98661 98662 98663 98682 98683 98684 98687

Marysville

98271 98270

Bellevue

98004 98005 98006 98007 98008 98009 98015

Kent

98031 98030 98032 98042 98035 98064 98089

Yakima

98901 98903 98902 98908 98904 98907