Carroll County, New Hampshire

Founding: 1840
Parent county: Strafford
Namesake: Charles Carroll, Maryland politician
Seat: Ossipee (1840–)
Land area: 932 square miles
Population (2020): 50,107
Population (historic): 20,157 (1850); 17,332 (1870); 18,124 (1890); 16,316 (1910); 14,277 (1930)
Periods of population growth: pre-1850–1860; 1870s; 1930–1950; 1960–2020
Subdivisions: Ten CDPs; one township; 18 towns
Pre-1940 residences (estimated): 6,800 (16.4%)
Pre-1860 housing survival rate (1940): 37.6%

Farm housing in disrepair (1950): 8.9%

Nonfarm housing in disrepair (1950): 3.5%

Average farmhouse value (1930): $1,769
Average outbuilding value (1930): $1,241

Average farmhouse size (1940): 7.6 rooms

Number of farms (1920): 1,520
Average farm size (1920): 29.9 acres
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Ossipee

 
Namesake: The Ossipee people
Founding: 1785 (incorporation); 1798 (post office)
Population (2020): 4,372
Population (historic): 339 (1790); 2,170 (1840); 1,822 (1870); 1,479 (1900); 1,230 (1930)
Periods of population growth: pre-1790–1820; 1830s; 1920–1940; 1960–2020
Pre-1940 residences (estimated): 679 (21.9%)
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Outstanding Buildings

1. Eagle Mountain House (1916/1929). 179 Carter Notch Road. Jackson. Classical Revival.
2. Windermere / Frank Greene House (1891–1893). 12 Land's End Lane. Moultonborough. Queen Anne.
3. Lucknow / Thomas Plant Estate (1913). 455 Old Mountain Road. Moultonborough. Craftsman.
4. First Baptist Church (1856–1857). 375 Granite Road. Ossipee. Greek Revival.
5. House (c. 1880). 2285 White Mountain Highway. Ossipee. Italianate.

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