Fayette County, Iowa

Founding: 1850 (declared in 1837)
Parent county: Dubuque

Namesake: The Marquis de Lafayette, Continental Army general
Seat: West Union (1850–)

Land area: 731 square miles

Population (2020): 19,509

Population (historic): 825 (1850); 16,973 (1870); 23,141 (1890); 27,919 (1910); 29,145 (1930)

Periods of population growth: pre-1850–1900; 1910s; 1950s

Subdivisions: 15 cities; 20 townships

National Register listings: 29

Pre-1940 residences (estimated): 4,000 (41.7%)
Pre-1940 housing survival rate: 53.8%
Pre-1860 housing survival rate (1940): 4.8%

Farm housing in disrepair (1950): 6%

Nonfarm housing in disrepair (1950): 6.1%

Average farmhouse value (1930): $2,096
Average outbuilding value (1930): $2,888
Average farmhouse size (1940): 7.1 rooms
Number of farms (1920): 3,157
Average farm size (1920): 106.5 acres
Sources of settlement: New York, Illinois, Wisconsin, Ohio, Germany, Pennsylvania, Ireland, and Norway
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West Union

Namesake: West Union, Ohio

Founding: 1849 (platting as Knob Prairie); 1850 (post office); 1866 (incorporation)

Population (2020): 2,490

Population (historic): 1,489 (1870); 1,676 (1890); 1,652 (1910); 2,056 (1930)

Periods of population growth: 1849–1900; 1910–1980; 1990s
Pre-1940 residences (estimated): 409 (32.3%)
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Outstanding Buildings

1. *Montauk / William Larrabee Farm (1874). 26223 Harding Road. Clermont. Italianate.
2. Andrew Patterson Farm (c. 1875). 2943 Fillmore Road. Illyria. Italianate.