barrio vs old town

barrio

noun
  • A municipality or subdivision of a municipality. 

  • An area or neighborhood in a US city inhabited predominantly by Spanish-speakers or people of Hispanic origin. 

  • A barangay. 

  • A slum on the periphery of a major city; a low to middle-class neighborhood in a lesser city. 

old town

noun
  • The historic district of a city or town. 

  • Used other than figuratively or idiomatically: see old, town. 

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