San Juan–Caguas–Guaynabo metropolitan area
The San Juan metropolitan area is a United States Census Bureau defined metropolitan statistical area (MSA) in northeastern Puerto Rico centered around the city of San Juan. A July 1, 2009, Census Bureau estimate placed the population at 2,617,089, a 4.31% increase over the 2000 census figure of 2,509,007. San Juan Metro Area (Área Metro) The unofficial but colloquial San Juan metropolitan area (in Spanish; área metropolitana de San Juan, abbreviated AMSJ), also referred to as the Área Metro is the sprawling area surrounding the Municipality of San Juan which includes San Juan and its conurbation of the municipalities of Bayamón, Carolina, Cataño, Guaynabo and Trujillo Alto, and in some cases it also includes Toa Baja (particularly the suburb of Levittown). After San Juan, many of these municipalities are the most populous in the commonwealth of Puerto Rico. It represents the inner urban area of the metropolitan statistical area of San Juan. This urban area is also known as the Área metro de Puerto Rico based on the misconception that San Juan is the only urbanized metropolitan area in the island. Municipalities in the San Juan–Caguas–Guaynabo metropolitan area San Juan–Caguas–Guaynabo metropolitan area is the largest metropolitan area (by population) in Puerto Rico, covering approximately half of the island. Its principal cities are San Juan, Bayamón and Carolina. A total of forty-one municipalities () are included as part of the San Juan–Caguas–Guaynabo MSA. The total area for the MSA is 1,902.45 square miles. As of 2020, the San Juan metropolitan statistical area is the 35th most populated MSA (slightly smaller than Greater Cleveland but larger than San Jose metropolitan area in population). Municipalities with over 100,000 inhabitants San Juan (Principal city) Pop: 342,259 Bayamón Pop: 185,187 Carolina Pop: 154,815 Caguas (Principal city) Pop: 127,244 Municipalities with 50,000 to 100,000 inhabitants Guaynabo (Principal city) Pop: 89,780 Arecibo Pop: 87,754 Toa Baja Pop: 75,293 Trujillo Alto Pop: 67,740 Toa Alta Pop: 66,852 Vega Baja Pop: 54,414 Humacao Pop: 50,896 Municipalities with fewer than 50,000 inhabitants Río Grande Pop: 47,060 Canóvanas Pop: 42,337 Cayey Pop: 41,652 Gurabo Pop: 40,662 Cidra Pop: 39,970 Manatí Pop: 39,492 Hatillo Pop: 38,486 San Lorenzo Pop: 37,693 Juncos Pop: 37,012 Dorado Pop: 35,879 Vega Alta Pop: 35,395 Las Piedras Pop: 35,180 Corozal Pop: 34,571 Camuy Pop: 32,827 Yabucoa Pop: 30,426 Naranjito Pop: 29,241 Barranquitas Pop: 28,893 Morovis Pop: 28,727 Aibonito Pop: 24,637 Aguas Buenas Pop: 24,223 Loíza Pop: 23,693 Quebradillas Pop: 23,638 Naguabo Pop: 23,386 Cataño Pop: 23,155 Barceloneta Pop: 22,657 Orocovis Pop: 21,434 Comerío Pop: 18,883 Ciales Pop: 16,984 Florida Pop: 11,692 Maunabo Pop: 10,589 Combined Statistical Area The San Juan-Caguas-Fajardo Combined Statistical Area (CSA) includes two metropolitan areas, one micropolitan area, and forty-five municipalities. A July 1, 2009 Census Bureau estimate placed the population at 2,732,036, a 4.16% increase over the 2000 census figure of 2,622,876. The San Juan-Caguas-Fajardo Combined Statistical Area comprises 68.9% of Puerto Rico's total population. As of 2020, the San Juan combined statistical area is the 29th largest CSA (slightly smaller than Indianapolis