Genealogy Today | Directory Portage County U.S. Census (1840 - 1930) Directory > Census Records > U.S.A. > Wisconsin U.S. Federal Census records are divided into groups by state, then county, and in many cases by township as well.  1840 Census ADD NEW LISTING  1840 Census - Wisconsin - Portage County  from Ancestry.com Information about the 1840 Census  1850 Census ADD NEW LISTING  USGenWeb5: 1850 Census Index - Portage 1850 Census - Wisconsin - Portage County  from Ancestry.com Information about the 1850 Census  1860 Census ADD NEW LISTING  1860 Census - Wisconsin - Portage County  from Ancestry.com Information about the 1860 Census  1870 Census ADD NEW LISTING  1870 Census - Wisconsin - Portage County  from Ancestry.com Information about the 1870 Census  1880 Census ADD NEW LISTING  1880 Census - Wisconsin - Portage County  from Ancestry.com Information about the 1880 Census  1900 Census ADD NEW LISTING  Population4: 29,483 USGenWeb5: 1900 Census Index - Portage 1900 Census - Wisconsin - Portage County  from Ancestry.com Information about the 1900 Census  1910 Census ADD NEW LISTING  Population4: 30,945 1910 Census - Wisconsin - Portage County  from Ancestry.com Information about the 1910 Census  1920 Census ADD NEW LISTING  Population4: 33,649 1920 Census - Wisconsin - Portage County  from Ancestry.com Information about the 1920 Census  1930 Census ADD NEW LISTING  Population4: 33,827 1930 Census - Wisconsin - Portage County  from Ancestry.com Information about the 1930 Census  Additional Information Portage

⁴ Population of Counties by Decennial Census: 1900 to 1990, U.S. Bureau of the Census, 1995

⁵ The USGenWeb Census Project, USGenWeb Archives, 2004.