Pulaski County, Illinois

Founding: 1843
Parent counties: Alexander and Johnson

Namesake: Casimir Pulaski, Continental Army general
Seat: Caledonia (1843–1861); Mound City (1861–)

Land area: 199 square miles

Population (2020): 5,193

Population (historic): 2,265 (1850); 8,752 (1870); 11,355 (1890); 15,650 (1910); 14,834 (1930)

Periods of population growth: pre-1850–1910; 1920–1940; 1970s

Subdivisions: Two cities; five villages

National Register listings: Four

Pre-1940 residences (estimated): 883 (27.9%)
Pre-1940 housing survival rate: 18.3%
Pre-1860 housing survival rate (1940): 3.8%

Farm housing in disrepair (1950): 27.2%

Nonfarm housing in disrepair (1950): 29.2%

Average farmhouse value (1930): $824
Average outbuilding value (1930): $526

Average farmhouse size (1940): 4.2 rooms
Number of farms (1920): 1,015
Average farm size (1920): 77.6 acres
Sources of settlement: Tennessee and Kentucky
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Mound City

Namesake: Earthworks near the village

Founding: 1854 (platting); 1856 (post office); 1857 (incorporation)

Population (2020): 526

Population (historic): 898 (1860); 1,631 (1870); 2,705 (1900); 2,548 (1930)

Periods of population growth: 1854–1910
Pre-1940 residences (estimated): 71 (25.3%)
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Outstanding Buildings

1. *Mound City National Cemetery Lodge (1880). State Route 37 and Old US Highway 51. Queen Anne.
2. *Justus Post House (1828/1860s). 1031 Winnebago Avenue. Razed.