Dubuque County, Iowa

 

Founding: 1834
Parent county: Unorganized territory

Namesake: Julien Dubuque, French Canadian prospector
Seat: Dubuque (1834–)

Land area: 608 square miles

Population (2020): 99,266

Population (historic): 3,059 (1840); 31,164 (1860); 42,996 (1880); 56,403 (1900); 61,214 (1930)

Periods of population growth: pre-1840–1980; 1990–2020

Subdivisions: 21 cities; 17 townships

Pre-1940 residences (estimated): 9,450 (22.6%)
Pre-1940 housing survival rate: 70.8%
Pre-1860 housing survival rate (1940): 10%

Farm housing in disrepair (1950): 6.3%

Nonfarm housing in disrepair (1950): 5.7%

Average farmhouse value (1930): $2,616
Average outbuilding value (1930): $3,311
Average farmhouse size (1940): 6.9 rooms
Number of farms (1920): 2,372
Average farm size (1920): 113.8 acres
Sources of settlement: Germany, Ireland, Ohio, New York, Illinois, Pennsylvania, Luxembourg, England, and Switzerland
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Dubuque

Namesake: Julien Dubuque, French Canadian prospector

Founding: 1833 (platting); 1833 (post office); 1857 (incorporation)

Population (2020): 59,667

Population (historic): 3,108 (1850); 18,434 (1870); 30,311 (1890); 38,494 (1910); 41,679 (1930)

Periods of population growth: 1833–1980; 2010s
Pre-1940 residences (estimated): 7,945 (30.6%)
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Outstanding Buildings

1. Pin Oak Tavern / John Floyd House (1849–1850). 25226 US Highway 52. Concord.
2. John Wallis House (c. 1870). 16543 Herod Lane. Dubuque. Italianate.
3. St. Clement Catholic Church (c. 1900). 24315 New Vienna Road. Iowa. Gothic Revival.
4. Adam Haberkorn Farm (1870). 17119 Haberkorn Road. Jefferson.
5. Jacob Friedman Farm (c. 1895). 28583 Thunder Road. Liberty. Eastlake.
6. St. Catherine Catholic Church (1887). 5189 St. Catherine Road. Mosalem. Romanesque.
7. Bernard Wente Farm (c. 1875). 28888 Wente Road. New Wine. Italianate.
8. Sacred Heart Catholic Church (1912). 19587 Sacred Heart Lane. Prairie Creek. Romanesque.
9. Mount St. Bernard Seminary (1851). 10336 Mount St. Bernard Road. Table Mound. Italianate.
10. Holy Family Catholic Church (1889). 16318 Holy Family Lane. Vernon. Gothic Revival.
11. Daniel Mahony Farm (c. 1870). 7674 Sundown Road. Vernon. Gothic Revival.

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