Richland County, Ohio

Founding: 1813 (declared in 1808)
Parent county: Franklin

Namesake: A descriptive name
Seat: Mansfield (1813–)

Land area: 495 square miles

Population (2020): 124,936

Population (historic): 9,169 (1820); 30,879 (1850); 32,516 (1870); 44,289 (1900); 65,902 (1930)

Periods of population growth: pre-1820–1980; 1990s; 2010s

Subdivisions: Three cities; six villages; 18 townships

Pre-1940 residences (estimated): 10,910 (20%)
Pre-1940 housing survival rate: 59.8%
Pre-1860 housing survival rate (1940): 18.3%

Farm housing in disrepair (1950): 6.3%

Nonfarm housing in disrepair (1950): 6.4%

Average farmhouse value (1930): $1,769
Average outbuilding value (1930): $1,484

Average farmhouse size (1940): 7.2 rooms
Number of farms (1920): 3,125
Average farm size (1920): 74.4 acres
Sources of settlement: Pennsylvania, New York, Germany, Maryland, and Ireland
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Mansfield

Namesake: Jared Mansfield, surveyor general of the Northwest Territory

Founding: 1808 (platting); 1811 (post office); 1828 (incorporation)

Population (2020): 47,534

Population (historic): 288 (1820); 3,557 (1850); 9,859 (1880); 17,640 (1900); 33,525 (1930)

Periods of population growth: pre-1820–1970

Pre-1940 residences (estimated): 5,494 (25.3%)
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