Wahkiakum County Washington has 5 places on the National Register of Historic Places including 2 places of Statewide significance. Significant places include Columbia River Gillnet Boat and Skamokawa Historic District, Deep River Pioneer Lutheran Church, Grays River Covered Bridge and Pioneer Church.
Some of the country's most noteable architects helped create the Wahkiakum County places including Wilson Shipyards. Prominent architectural styles found in Wahkiakum Country are Bungalow/Craftsman and Gothic Revival.