Marion County, West Virginia

Founding: 1842
Parent counties: Harrison and Monongalia

Namesake: Francis Marion, Continental Army officer
Seat: Fairmont (1842–)

Land area: 309 square miles

Population (2020): 56,205

Population (historic): 10,552 (1850); 12,107 (1870); 20,721 (1890); 42,794 (1910); 66,655 (1930)

Periods of population growth: pre-1850–1860; 1870–1950; 1970s

Subdivisions: Three cities; eight towns; three CDPs

National Register listings: 22

Pre-1940 residences (estimated): 7,756 (29.4%)
Pre-1940 housing survival rate: 47%
Pre-1860 housing survival rate (1940): 15.2%

Farm housing in disrepair (1950): 18.5%

Nonfarm housing in disrepair (1950): 10.2%

Average farmhouse value (1930): $1,295
Average outbuilding value (1930): $585
Average farmhouse size (1940): 5 rooms
Number of farms (1920): 2,233
Average farm size (1920): 52.7 acres
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Fairmont

Namesake: A reference to the city's view of the Monongahela River

Founding: 1817 (platting as Middletown); 1820 (incorporation)

Population (2020): 18,416

Population (historic): 683 (1850); 621 (1870); 1,023 (1890); 9,711 (1910); 23,159 (1930)

Periods of population growth: pre-1850–1860; 1870–1930; 1940s
Pre-1940 residences (estimated): 3,295 (37%)
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Outstanding Buildings

1. *House (c. 1880). 1009 Booth's Creek Road. Italianate.
2. *George Morgan House (1857–1860). 481 Frederick Road. Greek Revival.
3. James Lanham House (c. 1820). 227 Lanham Lane.
4. Harrison Manley House (c. 1875). 337 Manley Chapel Road. Italianate.