Ozaukee County, Wisconsin

Founding: 1853
Parent county: Washington

Namesake: The Ojibwe word for the Sauk people
Seat: Port Washington (1853–)

Land area: 233 square miles

Population (2020): 91,503

Population (historic): 15,682 (1860); 15,461 (1880); 16,363 (1900); 17,394 (1930)

Periods of population growth: pre-1860; 1890–1910; 1920–2020

Subdivisions: Three cities; five villages; one CDP; six towns

Pre-1940 residences (estimated): 4,367 (11.7%)
Pre-1940 housing survival rate: 79.6%
Pre-1860 housing survival rate (1940): 9%

Farm housing in disrepair (1950): 2.1%

Average farmhouse value (1930): $2,732
Average outbuilding value (1930): $2,637
Average farmhouse size (1940): 7.3 rooms
Number of farms (1920): 1,727
Average farm size (1920): 62.4 acres
Sources of settlement: Germany, Luxembourg, Belgium, and New York
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Port Washington

Namesake: George Washington, U.S. president

Founding: 1835 (platting); 1849 (post office); 1882 (incorporation)

Population (2020): 12,353

Population (historic): 1,386 (1880); 3,010 (1900); 3,693 (1930)

Periods of population growth: pre-1880–1910; 1920–1970; 1980–2020
Pre-1940 residences (estimated): 963 (18.4%)
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