Washington state vs Wilkes County

Washington state

name
  • Synonym of Washington, the US state. 

Wilkes County

name
  • One of 159 counties in Georgia, United States. County seat: Washington. 

  • One of 100 counties in North Carolina, United States. County seat: Wilkesboro. 

How often have the words Washington state and Wilkes County occurred in a corpus of books? (source: Google Ngram Viewer )