id author title date pages extension mime words sentences flesch summary cache txt en-wikipedia-org-1539 Northern United States - Wikipedia .html text/html 1086 186 68 Northern United States Wikipedia The states shown in red are included in the general term Northern United States. The United States Census Bureau divides some of the northernmost United States into the Midwest Region and the Northeast Region.[3] The Census Bureau also includes the northernmost states of the Northwest, that are within the West Region.[3] Before 19th-century westward expansion, the "Northern United States" corresponded to the present day New England region. Due to gradual abolition laws, slaves would still appear in some Northern states as far as the 1840 United States Census.[4] Slavery would ultimately lead to the main cause of the American Civil War. American Civil War[edit] Northern Tier (United States) Flora of the Northern United States "Census Regions and Divisions of the United States" (PDF). United States Census Bureau. United States Census Bureau. United States Census Bureau. "the North (region, United States)". Categories: Regions of the United States ./cache/en-wikipedia-org-1539.html ./txt/en-wikipedia-org-1539.txt