Clarion County, Pennsylvania

Founding: 1840
Parent counties: Armstrong and Venango

Namesake: The Clarion River
Seat: Clarion (1839–)

Land area: 601 square miles

Population (2020): 37,241

Population (historic): 23,565 (1850); 40,328 (1880); 34,283 (1900); 34,531 (1930)

Periods of population growth: pre-1850–1880; 1900s; 1930s; 1960–1980

Subdivisions: 12 boroughs; five CDPs; 22 townships

Pre-1940 residences (estimated): 5,184 (25.5%)
Pre-1940 housing survival rate: 60%
Pre-1860 housing survival rate (1940): 14.6%

Farm housing in disrepair (1950): 5.8%

Nonfarm housing in disrepair (1950): 5.8%
Average farmhouse value (1930): $1,448
Average outbuilding value (1930): $1,530
Average farmhouse size (1940): 6.8 rooms
Number of Farms (1920): 2,931
Average Farm Size (1920): 61.4 acres
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Clarion

Namesake: The Clarion River

Founding: 1839 (platting); 1840 (post office); 1841 (incorporation)

Population (2020): 3,931

Population (historic): 719 (1850); 709 (1870); 2,004 (1900); 3,201 (1930)

Periods of population growth: 1839–1850; 1860–1890; 1900–1990
Pre-1940 residences (estimated): 478 (21.6%)
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Outstanding Buildings

1. Henry Mong House (c. 1875). 1525 Ninevah Road. Ashland. Italianate.
2. Baum House (1838). 3180 US Highway 322. Ashland.
3. Daniel Ashbaugh House (1843). 194 Exley Road. Beaver. Razed.
4. St. Paul's Lutheran Church (1906). 1051 Twin Churches Road. Beaver. Gothic Revival.
5. John Flemming House (c. 1875). 14 Shofestall Road. Clarion. Italianate.
6. Philip Clover House (c. 1820). 2 Stone House Road. Clarion. Federal.
7. Samuel Sloan Farm (1837). 725 Ridge Road. Limestone. Federal.
8. William Keever House (1840). 18805 State Route 68. Monroe. Greek Revival.
9. Samuel Fox Estate (1845). 527 Foxview Road. Richland. Italianate.
10. House (c. 1880). State Route 338, northeast of Salem Road. Richland. Italianate. Razed.
11. St. Michael Catholic Church (1882). 18765 State Route 208. Washington. Gothic Revival.

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