Wahkiakum County, Washington

Founding: 1854
Parent county: Cowlitz

Namesake: Wahkiakum, Chinook chief
Seat: Cathlamet (1854–)

Land area: 263 square miles

Population (2020): 4,422

Population (historic): 270 (1870); 2,526 (1890); 3,285 (1910); 3,862 (1930)

Periods of population growth: 1860–1940; 1960–1980; 1990–2020

Subdivisions: One town; nine CDPs

National Register listings: Five

Pre-1940 residences (estimated): 323 (15%)
Pre-1940 housing survival rate: 32.4%

Farm housing in disrepair (1950): 21.1%

Nonfarm housing in disrepair (1950): 12.7%

Average farmhouse value (1930): $1,356
Average outbuilding value (1930): $1,069
Average farmhouse size (1940): 5.6 rooms
Number of farms (1920): 373
Average farm size (1920): 23 acres
Sources of settlement: Oregon, Sweden, Finland, and Norway
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Cathlamet

Namesake: The Cathlamet people, who occupied a village at the site

Founding: 1840s (founding); 1851 (post office); 1907 (incorporation)

Population (2020): 560

Population (historic): 133 (1880); 362 (1910); 537 (1930)

Pre-1940 residences (estimated): 126 (38.4%)
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Outstanding Buildings

1. *Christopher Henry House (1887). 1919 Altoona–Pillar Rock Road. Queen Anne.