district vs municipality

district

noun
  • An administrative division of a county without the status of a borough. 

  • An area or region marked by some distinguishing feature. 

  • the Soho district of London 

  • An administrative division of an area. 

verb
  • To divide into administrative or other districts. 

municipality

noun
  • A district with a government that typically encloses no other governed districts; a borough, city, or incorporated town or village. 

  • The governing body of such a district. 

  • In Mexico and other Spanish- and Portuguese-speaking countries, second-level administrative divisions that may house one or more cities or towns whose head of government may be called mayors or, in Mexico, municipal presidents. 

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