Riley County, Kansas

Founding: 1855
Parent county: Unorganized territory

Namesake: Bennet Riley, California military governor
Seat: Ogden (1857–1858); Manhattan (1858–)

Land area: 610 square miles

Population (2020): 71,959

Population (historic): 1,224 (1860); 10,430 (1880); 13,828 (1900); 19,882 (1930)

Periods of population growth: 1860–1890; 1900–1920; 1940–1980; 2000s

Subdivisions: Five cities; one CDP; 14 townships

Pre-1940 residences (estimated): 2,875 (9.5%)
Pre-1940 housing survival rate: 43.8%
Pre-1860 housing survival rate (1940): 7.9%

Farm housing in disrepair (1950): 4.9%

Nonfarm housing in disrepair (1950): 4.5%

Average farmhouse value (1930): $1,835
Average outbuilding value (1930): $1,422
Average farmhouse size (1940): 5.9 rooms
Number of farms (1920): 1,572
Average farm size (1920): 114.9 acres
Sources of settlement: Sweden, Illinois, Ohio, Germany, New York, and Pennsylvania
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Manhattan

Namesake: Manhattan, New York

Founding: 1855 (platting); 1855 (post office); 1857 (incorporation)

Population (2020): 54,100

Population (historic): 1,173 (1870); 3,438 (1900); 10,136 (1930)

Periods of population growth: pre-1870–2010
Pre-1940 residences (estimated): 1,995 (8.6%)
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Outstanding Buildings

1. Joseph Thompson Farm (c. 1880). 3400 South 24th Street. Ashland.
2. Charles Pitman Farm (1876). 2560 McDowell Creek Road. Ashland.
3. Gebhardt Farm (c. 1885). 17330 School Branch Road. Center. Gothic Revival.
4. Otto Bucheim Farm (c. 1880/1890). 15880 Winkler Road. Center. Italianate.
5. Samuel Houston House (1857). 3624 Anderson Road. Manhattan.
6. Isaac Goodnow House (1861). 2301 Claflin Road. Manhattan.
7. Charles Osterhaus Farm (c. 1870). 2450 Rosencutter Road. Manhattan.
8. Ulrich Rothlesberger Farm (c. 1875). 20400 May Day Road. May Day.
9. Charles Hagenmeier Farm (c. 1885). 18929 Otter Branch Road. Swede Creek.
10. Sedalia Church (1899). 6040 North 52nd Street. Wildcat. Gothic Revival.
11. Samuel Kimble Farm (c. 1860). 5020 Anderson Road. Wildcat.
12. Alfred Docking Farm (c. 1875). 2441 Daniels Road. Zeandale.
13. James Blain Farm (1883). 2201 Deep Creek Road. Zeandale. Italianate.
14. Charles Taylor Farm (c. 1865). 6181 Deep Creek Road. Zeandale.

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