Lewis County, New York

Founding: 1805
Parent county: Oneida

Namesake: Morgan Lewis, New York governor
Seat: Martinsburg (1805–1864); Lowville (1864–)

Land area: 1,275 square miles

Population (2020): 26,582

Population (historic): 6,433 (1810); 24,564 (1850); 28,699 (1870); 27,427 (1900); 23,447 (1930)

Periods of population growth: pre-1810–1880; 1950–2010

Subdivisions: Eight villages; one CDP; 17 towns

National Register listings: 35

Pre-1940 residences (estimated): 5,070 (32.5%)
Pre-1940 housing survival rate: 88.1%
Pre-1860 housing survival rate (1940): 20.5%

Farm housing in disrepair (1950): 13.4%

Nonfarm housing in disrepair (1950): 8.1%

Average farmhouse value (1930): $1,629
Average outbuilding value (1930): $1,854

Average farmhouse size (1940): 8.3 rooms
Number of farms (1920): 2,952
Average farm size (1920): 75.8 acres
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Lowville

Namesake: Nicholas Low, New York real-estate developer

Founding: 1803 (post office); 1847 (incorporation)

Population (2020): 3,272

Population (historic): 2,511 (1890); 2,940 (1910); 3,423 (1930)

Periods of population growth: pre-1890; 1900–1950; 1960s; 1980s
Pre-1940 residences (estimated): 1,061 (70.4%)
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Outstanding Buildings

1. James Decker House (1832). 9905 State Route 26. Denmark. Federal.
2. *Cadwell Dewey House (1853–1854). 4215 East Road. Turin. Italianate.
3. *John Strong House (c. 1840). 4448 East Road. Turin. Greek Revival.
4. Isaac Brown Farm (c. 1865). 6419 Number Four Road. Watson. Italianate.
5. *Constable Hall / William Constable House (1810–1819). 5909 John Street. West Turin. Greek Revival.
6. James Rees House (c. 1820). 6704 McAlpine Street. West Turin. Federal.
7. Benjamin Potter House (c. 1855). 3706 State Route 26. West Turin. Italianate.
8. *Jonathan Collins House (c. 1800). 2971 West Road. West Turin. Federal. Razed.