Door County, Wisconsin

Founding: 1861 (declared in 1851)
Parent county: Brown

Namesake: The Door Peninsula
Seat: Sturgeon Bay (1861–)

Land area: 482 square miles

Population (2020): 30,066

Population (historic): 2,948 (1860); 11,645 (1880); 17,583 (1900); 18,182 (1930)

Periods of population growth: pre-1860–1920; 1930–1950; 1970–2000; 2010s

Subdivisions: One city; four villages; three CDPs; 14 towns

National Register listings: 75

Pre-1940 residences (estimated): 4,197 (17%)
Pre-1940 housing survival rate: 68.7%
Pre-1860 housing survival rate (1940): 2.9%

Farm housing in disrepair (1950): 5.7%

Nonfarm housing in disrepair (1950): 3.4%

Average farmhouse value (1930): $1,811
Average outbuilding value (1930): $1,938
Average farmhouse size (1940): 6.5 rooms
Number of farms (1920): 2,396
Average farm size (1920): 62.4 acres
Sources of settlement: Germany, Norway, Belgium, Sweden, Canada, and New York
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Sturgeon Bay

Namesake: Sturgeon Bay

Founding: 1855 (platting); 1855 (post office); 1874 (incorporation)

Population (2020): 9,646

Population (historic): 1,199 (1880); 3,372 (1900); 4,983 (1930)

Periods of population growth: pre-1880–1960; 1970–2000; 2010s
Pre-1940 residences (estimated): 834 (16.5%)
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Outstanding Buildings

1. *St. Francis Catholic Church (1909). 9617 Cemetery Road. Brussels. Gothic Revival.
2. *Joachim Falque Farm (c. 1880). 1059 Road C. Brussels.
3. *St. Mary Catholic Church (1901). 7491 Road H. Forestville. Gothic Revival.
4. *Jean Baudhuin Farm (c. 1880). 1271 Road DK. Union.