Oldham County, Kentucky

Founding: 1824
Parent counties: Henry, Jefferson, and Shelby

Namesake: William Oldham, Continental Army colonel
Seat: Westport (1823–1827); LaGrange (1827–)

Land area: 187 square miles

Population (2020): 67,607

Population (historic): 9,588 (1830); 7,283 (1860); 7,667 (1880); 7,078 (1900); 7,402 (1930)

Periods of population growth: pre-1830; 1840s; 1860s; 1890–1920; 1930–2020

Subdivisions: Six cities; two CDPs

Pre-1940 residences (estimated): 699 (3.2%)
Pre-1940 housing survival rate: 32.9%
Pre-1860 housing survival rate (1940): 23.6%

Farm housing in disrepair (1950): 10.2%

Nonfarm housing in disrepair (1950): 8.4%

Average farmhouse value (1930): $2,003
Average outbuilding value (1930): $1,505
Average farmhouse size (1940): 5.3 rooms
Number of farms (1920): 1,086
Average farm size (1920): 74.6 acres
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LaGrange

Namesake: The estate of the Marquis de Lafayette

Founding: 1827 (platting); 1827 (post office); 1840 (incorporation)

Population (2020): 10,067

Population (historic): 233 (1840); 612 (1870); 646 (1900); 1,121 (1930)

Pre-1940 residences (estimated): 136 (4%)
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