Michigan

Michigan was part of the Northwest Territory established in 1787. When Indiana Territory was created in 1800 it included the west half of lower Michigan and nearly all of the Upper Peninsula, leaving the remainder of the present State in the Northwest Territory until 1802, when the eastern portion also became part of Indiana Territory. Michigan Territory was established in 1805, but nearly all the Upper Peninsula remained in Indiana or Illinois Territories. In 1818 Michigan Territory's boundaries were extended to include the rest of the Upper Peninsula and all of present-day Wisconsin and northeastern Minnesota. In 1834 the Territory was expanded still further to stretch to the Missouri River, including the rest of Minnesota, Iowa, and the eastern Dakotas. Michigan Territory included a northern strip of Indiana until 1816, and it also governed a narrow strip of what is now northwestern Ohio which was claimed by that State. This was ceded to Ohio in 1836, and Michigan was admitted as a State on January 26, 1837 with essentially its present boundaries.

In 1790 the Northwest Territory had no census coverage. In 1800 coverage of the present State included only the Detroit area (Wayne County, Northwest Territory) and some persons at "Machilamackanack," Indiana Territory. Coverage in 1810, 1820, and 1830 expanded in the Lower Peninsula and included population in the strip that was ceded to Ohio in 1836. The 1820 and 1830 censuses also included some settlements in present-day Wisconsin, shown under that State. The 1840 census covered all parts of the State.