Minnesota vs Saint Louis County

Minnesota

name
  • A tributary of the Mississippi River in southern Minnesota. 

  • A state in the Upper Midwest region of the United States. Capital: Saint Paul. Largest city: Minneapolis. 

  • A former territory (1849–1858) of the United States, encompassing the modern state and part of the Dakotas. Capital: Saint Paul. 

  • University of Minnesota, Twin Cities. 

Saint Louis County

name
  • Synonym of Lake County, Minnesota, USA, in its former dimensions. 

  • A county of Missouri, United States. County seat: Clayton. 

  • One of 87 counties in Minnesota, United States. County seat: Duluth. 

How often have the words Minnesota and Saint Louis County occurred in a corpus of books? (source: Google Ngram Viewer )