Boulder vs Louisville

Boulder

name
  • A town, the county seat of Jefferson County, Montana, United States. 

  • A town in Western Australia, merged with Kalgoorlie in 1989. 

  • A small town in Garfield County, Utah, United States. 

  • A census-designated place in Sublette County, Wyoming, United States. 

  • An unincorporated community in Barbour County, West Virginia, United States. 

  • An unincorporated community in Clinton County, Illinois, United States. 

  • A home rule municipality, the county seat of Boulder County, Colorado, United States. 

Louisville

name
  • A city, the county seat of Jefferson County, Georgia, United States. 

  • A village, the county seat of Clay County, Illinois. 

  • A city, the county seat of Jefferson County, Kentucky. 

  • A city, the county seat of Winston County, Mississippi. 

  • A town in Barbour County, Alabama. 

How often have the words Boulder and Louisville occurred in a corpus of books? (source: Google Ngram Viewer )