Census Records

Iowa State Census

• 1856 - Complete
• 1885 - Partial
• 1895
• 1905
• 1915
• 1925

United States Federal Census

• 1860 - Complete
• 1870 - Index
• 1880 - Partial
• 1900
• 1910
• 1920
• 1930
• 1940
• 1950

Sources for Calhoun County Census Totals:
Iowa Data Center; Total Population and Rankings for Iowa's Counties: 1850-2000 (in alphabetical order)
Iowa State University Extension and Outreach; Decennial Census Population Indicator Program 2000-2020