Washington County, Kansas

Founding: 1860 (declared in 1857)
Parent county: Unorganized territory
Namesake: George Washington, U.S. president
Seat: Washington (1860–)
Land area: 895 square miles
Population (2020): 5,530
Population (historic): 383 (1860); 14,910 (1880); 21,963 (1900); 17,112 (1930)
Periods of population growth: 1860–1890
Subdivisions: 11 cities; 25 townships
National Register listings: Eight
Pre-1940 residences (estimated): 1,233 (41.9%)
Pre-1940 housing survival rate: 34.1%

Farm housing in disrepair (1950): 10.6%

Nonfarm housing in disrepair (1950): 8.9%

Average farmhouse value (1930): $1,297
Average outbuilding value (1930): $1,246

Average farmhouse size (1940): 6 rooms

Number of farms (1920): 2,790
Average farm size (1920): 137.2 acres
Sources of settlement: Illinois, Ohio, Iowa, Germany, Indiana, and New York
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Washington

 
Namesake: George Washington, U.S. president
Founding: 1860 (platting); 1861 (post office); 1875 (incorporation)
Population (2020): 1,071
Population (historic): 675 (1880); 1,575 (1900); 1,370 (1930)
Periods of population growth: pre-1880–1890; 1930s
Pre-1940 residences (estimated): 225 (38.7%)
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Outstanding Buildings

1. *Gerat Hollenberg Inn (c. 1858). 2307 Big Bear Road. Hanover.
2. St. Michael Catholic Church (1904). 2nd Road, west of Thunder Road. Kimeo. Romanesque.