Guayama metropolitan area Área metropolitana de Guayama | ||
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.jpg) San Juan metropolitan area in southeasternPuerto Rico  Aguirre Forest to Punta Viento Reserve | ||
 Map of Puerto Rico with urban areas demarcated in orange to yellow | ||
 Statistical areas in Puerto Rico
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| Country |  United States | |
| Territory |  Puerto Rico | |
| Principal city | ||
| Population (2023) | ||
• Total | 65,190 | |
| Time zone | UTC−4 | |
| • Summer (DST) | EDT | |
TheGuayama metropolitan area (Spanish:área metropolitana de Guayama), is the smallestmetropolitan statistical area (MSA) inPuerto Rico, comprising the municipalities of Guayama, Patillas, and Arroyo between thecoastal plain and theSierra de Cayey mountain subrange in the southeastern region of themain island. One of6 metropolitan statistical areas in Puerto Rico, it lies within theSan Juan–Bayamóncombined statistical area (CSA), which is one of3 primary statistical areas in the main island as defined by theUnited States Census Bureau. As of 2023, census estimates place the population of the Guayama metropolitan area at 65,190.[1][2][3]
With an estimated population of 65,190 as of 2023, the Guayama metropolitan area (MSA) is the sixth and last populous inPuerto Rico, covering 3 of 78municipalities in the southeastern region of themain island. Guayama is considered to be itsprincipal city.[4] The Guayama metropolitan area is the384th most populated in theUnited States between theLewiston, ID-WA MSA and theEnid, OK MSA.
The2020 Census placed the population at 68,442, a 18.73% decrease over the2010 Census figure of 84,214, which was a 0.83% increase over the2000 census figure of 83,570.[5]
Comprising Guayama, Patillas, and Arroyo, the Guayanilla metropolitan area is situated between the southerncoastal plains and theSierra de Cayey mountain subrange in the southeastern region of themain island ofPuerto Rico.
All municipalities have an urbanized, densely populated downtown area and administrative center, categorized as abarrio and known as apueblo, and concentrated urbanized residential areas with large populations at their low-lying coastlines in the south. All municipales have rural areas within theSierra de Cayey mountain subrange in the north.
