The state of Minnesota conducted a state census in the following years: 1849, 1850, 1853, 1855, 1857, 1865, 1875, 1885, 1895 and 1905.
Wisconsin was carved from Michigan Territory. If you are searching early Wisconsin areas, don't forget to search in Michigan.
Depending upon the time period, how you view the documentation and who provided it, you may find different dates, different name spellings and different locations.
Because the study of our ancestors' lives provides us with a long-term view of humanity, it also reassures us, generation after generation, that people survive.
For hard to find female ancestors, go sideways and search their husband and children.