San Juan–Bayamón–Caguas metropolitan area
San Juan metropolitan area
Área metropolitana de San Juan | ||
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NASA image of urban core of San Juan metro area in northeastern Puerto Rico, 2024 | ||
| Nicknames: Área Metro (Metro Area); La Losa ("the slab") | ||
Map of Puerto Rico with urbanized areas demarcated in orange to yellow, 2017 | ||
Statistical areas in Puerto Rico
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| Country | United States | |
| Territory | Puerto Rico | |
| Principal cities | San Juan, Bayamón, Caguas, and Guaynabo | |
| Population (2023) | ||
| • MSA | 2,035,733 | |
| • CSA | 2,360,082 | |
| Time zone | UTC−4 | |
The San Juan–Bayamón–Caguas metropolitan area, most commonly known as the San Juan metropolitan area (Spanish: área metropolitana de San Juan), is the largest and most populous metropolitan statistical area (MSA) in Puerto Rico, concentrated in the capital of San Juan and surrounding municipalities, including Bayamón, Caguas, and Carolina, on the northeastern coastal plain of the main island. One of 6 metropolitan statistical areas in Puerto Rico, it is within the San Juan–Bayamón combined statistical area (CSA), which is one of 3 combined statistical areas in the archipelago as defined by the United States Census Bureau. As of 2023, the estimated population of the San Juan–Bayamón–Caguas metropolitan area is 842,535 in municipalities in the conurbation and 1,193,198 in municipalities outside the urban core, making it the fourth largest in the insular Caribbean.