Adams County on the map of Washington 2025. Cities, roads, borders and directions in Adams County of Washington.

Adams County is located in the eastern part of the state of Washington. This special county is named after John Adams (1735-1826), 2nd U.S. President. The county seat of Adams County is Ritzville. The county's area is about 1925 square miles. Established in 1883, today Adams County is home to 21 thousand residents. This map shows the borders of Adams County as well as neighboring counties, including major highways and natural objecsts as of 2025. Zoom in or out of the map using the plus/minus panel. Move the center of this map by dragging it. Also check out the satellite map of Adams County.