Washington County, New York

Founding: 1772
Parent county: Albany
Namesake: George Washington, U.S. president
Seat: Hudson Falls (pre-1994); Fort Edward (1994–)
Land area: 831 square miles
Population (2020): 61,302
Population (historic): 14,077 (1790); 41,080 (1840); 49,568 (1870); 45,624 (1900); 46,482 (1930)
Periods of population growth: pre-1790–1810; 1820s; 1840–1870; 1900s; 1920–2010
Subdivisions: Eight villages; two CDPs; 17 towns
National Register listings: 55
Pre-1940 residences (estimated): 10,762 (36.5%)
Pre-1940 housing survival rate: 79.1%
Pre-1860 housing survival rate (1940): 34.4%

Farm housing in disrepair (1950): 15%

Nonfarm housing in disrepair (1950): 9.4%
Average farmhouse value (1930): $1,923
Average outbuilding value (1930): $1,685
Average farmhouse size (1940): 8.1 rooms
Number of farms (1920): 3,334
Average farm size (1920): 89.5 acres
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Hudson Falls (ex-seat)

 
Namesake: Waterfalls along the Hudson River
Founding: circa 1790 (founding as Sandy Hill); 1797 (post office); 1810 (incorporation)
Population (2020): 7,427
Population (historic): 2,347 (1870); 2,895 (1890); 5,189 (1910); 6,449 (1930)
Periods of population growth: pre-1870–1970; 1980s; 2000–2020
Pre-1940 residences (estimated): 1,548 (46.3%)
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Outstanding Buildings

1. James Stevenson Farm (c. 1840). 4837 State Route 40. Argyle. Greek Revival.
2. Thomas Shiland Farm (1811). 1111 County Road 59. Cambridge. Federal.
3. Green Farm (c. 1845). 271 Stevenson Road. Cambridge. Greek Revival.
4. George Kinney House (c. 1840). 819 Turnpike Road. Cambridge. Greek Revival.
5. Orrin Rice House (c. 1860). 2 Cambridge Road. Easton. Italianate.
6. Lyman Rathbun Farm (c. 1840). 197 Intervale Road. Easton. Greek Revival.
7. Benajah Barker House (c. 1840). 101 Meeting House Road. Easton. Greek Revival.
8. *Simon DeRidder Farm (c. 1755/1792). 2999 River Road. Easton. Federal.
9. *Thomas McLean House (c. 1795/1840/1867). 2850 State Route 29. Greenwich. Greek Revival.
10. Reynolds Farm (c. 1870). 3201 State Route 40. Greenwich. Italianate.
11. Isaac Clary House (1805). 7679 State Route 40. Hartford. Federal.
12. House (c. 1860). 908 Chamberlin Mills Road. Hebron. Italianate.
13. *David Hopkins Farm (1790). 6603 State Route 22. Hebron. Federal.
14. William McClellan Farm (c. 1865). 172 State Route 372. Jackson. Second Empire.
15. David Law Farm (c. 1800). 4 Chunk's Brook Road. Salem. Federal.
16. *Alexander McNish House (c. 1794). 194 County Road 30. Salem. Georgian.
17. Jacob Alexander House (c. 1780). 4263 State Route 22. Salem. Georgian.
18. *Martin Farm (c. 1787/1810/1830). 4189 State Route 29. Salem. Georgian.
19. *John Merriam Farm (c. 1840). 591 County Road 18. Whitehall. Greek Revival.
20. House (c. 1885). 2323 Upper Turnpike Road. Whitehall. Italianate.