According to the United States Census Bureau, the CDP has a total area of 3.5 square miles (9.1 km²), all of it land.
To the north is rural Grays Harbor County. East is Alder Grove, Montesano and Melbourne to the southeast. South is the Chehalis River. Artic is further south on Hwy 101. West is Aberdeen Junction, Junction City, Aberdeen, and Cosmopolis.