oppidan vs urban dweller

oppidan

adj
  • Of or pertaining to a town or conurbation. 

noun
  • A class of student in traditional English public schools such as Eton; opposed to colleger or King's Scholar. 

urban dweller

noun
  • One accustomed to a city or urban lifestyle or unsuited to life in the country. 

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