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The municipality of San Juan is divided into 18 barrios, 16 of which fall within the former (until 1951) municipality of Rio Piedras. Eight of the barrios are further divided into subbarrios,[1] and they include the two barrios that originally composed the municipality of San Juan (namely, San Juan Antiguo and Santurce):[2][3][4]


Former municipality of Río PiedrasEdit

  • Caimito
  • Cupey (formerly two barrios: Cupey Alto and Cupey Bajo)
  • El Cinco
  • Gobernador Piñero
  • Hato Rey Central
Hato Rey Central is divided into four subbarrios:
  • Ciudad Nueva
  • Floral Park
  • Las Monjas
  • Quintana
  • Hato Rey Norte
Hato Rey Norte is divided into four subbarrios:
  • Hato Rey Sur
Hato Rey Sur is divided into four subbarrios:
  • Monacillo
  • Monacillo Urbano
  • Oriente
Oriente is divided into three subbarrios:
  • Borínquen
  • López Sicardó
  • San José
  • Río Piedras Pueblo
Río Piedras Pueblo is divided into six subbarrios:
  • Quebrada Arenas
  • Sabana Llana Norte
  • Sabana Llana Sur
  • Tortugo
  • Universidad
Universidad is divided in four subbarrios:

Former municipality of San Juan (until 1951)Edit

San Juan Antiguo is divided into seven subbarrios:
Santurce is divided into 40 subbarrios:

Collective terms (former “barrios”)Edit

  • Sabana Llana is a former “barrio” of Río Piedras (current barrios of Sabana Llana Norte and Sabana Llana Sur, see above)
  • Monacillos is a former “barrio” of Río Piedras (current barrios of Monacillo and Monacillo Urbano, see above)
  • Hato Rey is a former “barrio” of Río Piedras (current barrios of Hato Rey Central, Hato Rey Norte, Hato Rey Sur, see above)


  1. ^ "US Census definition of "subbarrio"". US Census. Retrieved 5 January 2019.
  2. ^ G. David Garson; Robert S. Biggs; Robert S.. Biggs (11 June 1992). Analytic Mapping and Geographic Databases. SAGE. pp. 10–. ISBN 978-0-8039-4752-8. Retrieved 25 December 2018.
  3. ^ Puerto Rico:2010:population and housing unit counts.pdf (PDF). U.S. Dept. of Commerce, Economics and Statistics Administration, U.S. Census Bureau. 2010.
  4. ^ Gwillim Law (20 May 2015). Administrative Subdivisions of Countries: A Comprehensive World Reference, 1900 through 1998. McFarland. p. 300. ISBN 978-1-4766-0447-3. Retrieved 25 December 2018.