Belmont County, Ohio

Founding: 1801
Parent counties: Jefferson and Washington

Naming: A traditional name—French for "beautiful mountain"
Seat: Pultney (1801–1803); St. Clairsville (1803–)

Land area: 532 square miles

Population (2020): 66,497

Population (historic): 11,097 (1810); 34,600 (1850); 49,638 (1880); 60,875 (1900); 94,719 (1930)

Periods of population growth: pre-1800–1940; 1970s

Subdivisions: Two cities; 14 villages; six CDPs; 16 townships

Pre-1940 residences (estimated): 10,523 (32.6%)
Pre-1940 housing survival rate: 41.8%
Pre-1860 housing survival rate (1940): 22.1%

Farm housing in disrepair (1950): 11.4%

Nonfarm housing in disrepair (1950): 9%
Average farmhouse value (1930): $1,326
Average outbuilding value (1930): $841
Average farmhouse value (1940): 6 rooms
Number of farms (1920): 3,556
Average farm size (1920): 66.1 acres
Sources of settlement: Virginia, Pennsylvania, Ireland, and Maryland
_________________________________________________________________________________

St. Clairsville

Namesake: Arthur St. Clair, governor of the Northwest Territory

Founding: circa 1799 (platting as Newellstown); 1801 (post office)

Population (2020): 5,096

Population (historic): 431 (1810); 1,025 (1850); 1,128 (1880); 1,210 (1900); 2,440 (1930)

Periods of population growth: pre-1800–1850; 1860–1980; 2000s
Pre-1940 residences (estimated): 419 (16.7%)
_________________________________________________________________________________

View and filter the data. Or see a map.

_________________________________________________________________________________