Henry County, Missouri

Founding: 1834
Parent counties: Lafayette and unorganized territory

Namesake: Patrick Henry, Virginia governor
Seat: Clinton (1837–)

Land area: 697 square miles

Population (2020): 21,946

Population (historic): 4,726 (1840); 9,866 (1860); 23,906 (1880); 28,054 (1900); 22,931 (1930)

Periods of population growth: pre-1840; 1850–1890; 1970–2010

Subdivisions: Eight cities; two villages; one CDP; 19 townships

National Register listings: Eight

Pre-1940 residences (estimated): 1,672 (15.3%)
Pre-1940 housing survival rate: 29.1%
Pre-1860 housing survival rate (1940): 5.5%

Farm housing in disrepair (1950): 15.5%

Nonfarm housing in disrepair (1950): 8.9%

Average farmhouse value (1930): $1,221
Average outbuilding value (1930): $919
Average farmhouse size (1940): 5 rooms
Number of farms (1920): 3,098
Average farm size (1920): 120 acres
Sources of settlement: Illinois, Virginia, Kentucky, Ohio, Indiana, Tennessee, and Germany
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Clinton

Namesake: DeWitt Clinton, New York governor

Founding: 1837 (platting); 1850 (post office); 1858 (incorporation)

Population (2020): 8,792

Population (historic): 610 (1870); 4,737 (1890); 4,992 (1910); 5,744 (1930)

Periods of population growth: pre-1870–1900; 1910–2000; 2010s
Pre-1940 residences (estimated): 612 (13.7%)
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Outstanding Buildings

1. Bronaugh Place / Christopher Bronaugh Farm (c. 1875). 510 Road YY. Deer Creek. Italianate.
2. Hickory Grove / Francis Bronaugh Farm (c. 1890). 521 Road YY. Deer Creek. Stick.