Lee County, Illinois

Founding: 1839

Parent county: Ogle

Namesake: Henry Lee II, Virginia governor
Seat: Dixon (1839–)

Land area: 725 square miles

Population (2020): 34,145

Population (historic): 2,035 (1840); 17,651 (1860); 27,491 (1880); 29,894 (1900); 32,329 (1930)

Periods of population growth: pre-1840–1880; 1890s; 1910–1960; 1990s

Subdivisions: Two cities; ten villages; 22 townships

Pre-1940 residences (estimated): 5,621 (37.2%)
Pre-1940 housing survival rate: 63.9%
Pre-1860 housing survival rate (1940): 9.9%

Farm housing in disrepair (1950): 3%

Nonfarm housing in disrepair (1950): 4.5%

Average farmhouse value (1930): $2,378
Average outbuilding value (1930): $3,197

Average farmhouse size (1940): 7.4 rooms
Number of farms (1920): 2,593
Average farm size (1920): 151.5 acres
Sources of settlement: Pennsylvania, New York, Germany, and Ireland
_________________________________________________________________________________

Dixon

Namesake: John Dixon, owner of the city site

Founding: 1830 (platting); 1833 (post office); 1853 (incorporation)

Population (2020): 15,274

Population (historic): 2,218 (1860); 3,658 (1880); 7,917 (1900); 9,908 (1930)

Periods of population growth: pre-1860–1870; 1880–1900; 1910–1960; 1990s
Pre-1940 residences (estimated): 2,439 (39.8%)
_________________________________________________________________________________

View and filter the data. Or see a map.
_________________________________________________________________________________