{"id":8669,"date":"2023-10-04T08:16:37","date_gmt":"2023-10-04T08:16:37","guid":{"rendered":"https:\/\/townsvillages.com\/us\/?p=8669"},"modified":"2026-07-31T18:07:35","modified_gmt":"2026-07-31T18:07:35","slug":"wahkiakum-county","status":"publish","type":"post","link":"https:\/\/townsvillages.com\/us\/wahkiakum-county\/","title":{"rendered":"Wahkiakum County, Washington"},"content":{"rendered":"

Wahkiakum County is a county in Washington, United States, on the north bank of the Columbia River about 26 miles west of Longview. It had a population of 4,422 at the 2020 census, an estimated 4,873 by 2025, and covers 287 square miles (740 km2) centred near 46\u00b017\u2032N 123\u00b026\u2032W — the smallest county in Washington by total area.<\/p>\n

Cathlamet is the county seat, and the only incorporated town in the county; its postal code is 98612. The county holds 1 town, 9 census-designated places and 6 smaller unincorporated localities, and it runs on Pacific time. Its FIPS code is 53069.<\/p>\n

Towns & Villages in Wahkiakum County<\/h2>\n

Wahkiakum County has 16 named places: one incorporated town (Cathlamet), nine census-designated places (CDPs) with their own 2020 population counts, and six unincorporated localities that the Census Bureau does not track separately. There are no civil townships in Washington, so places are not grouped by township here.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Place<\/th>\nType<\/th>\nPop.<\/th>\nZIP<\/th>\n<\/tr>\n<\/thead>\n
Cathlamet<\/td>\nTown · seat<\/td>\n560<\/td>\n98612<\/td>\n<\/tr>\n
Puget Island<\/td>\nCDP<\/td>\n922<\/td>\n98612<\/td>\n<\/tr>\n
East Cathlamet<\/td>\nCDP<\/td>\n578<\/td>\n98612<\/td>\n<\/tr>\n
Skamokawa Valley<\/td>\nCDP<\/td>\n487<\/td>\n98647<\/td>\n<\/tr>\n
Rosburg<\/td>\nCDP<\/td>\n340<\/td>\n98643<\/td>\n<\/tr>\n
Lower Elochoman<\/td>\nCDP<\/td>\n275<\/td>\n98612<\/td>\n<\/tr>\n
Grays River<\/td>\nCDP<\/td>\n248<\/td>\n98621<\/td>\n<\/tr>\n
Deep River<\/td>\nCDP<\/td>\n217<\/td>\n98638<\/td>\n<\/tr>\n
Upper Elochoman<\/td>\nCDP<\/td>\n178<\/td>\n98612<\/td>\n<\/tr>\n
Altoona<\/td>\nCDP<\/td>\n56<\/td>\n98643<\/td>\n<\/tr>\n
Eagle Cliff<\/td>\nUnincorp.<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Waterford<\/td>\nUnincorp.<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Flandersville<\/td>\nUnincorp.<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Carlson Landing<\/td>\nUnincorp.<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Svensens Landing<\/td>\nUnincorp.<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n
Dahlia<\/td>\nUnincorp.<\/td>\n—<\/td>\n—<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Two pairs of names are easy to confuse. East Cathlamet is a separate CDP just outside the Cathlamet town limits — and at 578 residents it actually outnumbers the town itself. Skamokawa, the historic riverfront hamlet, and Sleepy Hollow both sit inside the Skamokawa Valley CDP rather than being counted on their own; the Rosburg CDP likewise absorbs the older localities of Eden and Oneida, and the Upper Elochoman CDP absorbs State Camp.<\/p>\n

ZIP Codes<\/h2>\n