Explore San Antonio, Puerto Rico, with this interactive street and satellite map.
| City | San Antonio |
| State | Puerto Rico (PR) |
| County | Caguas County |
| Country | United States of America |
| Timezone | Atlantic Standard Time — no DST (America/Puerto_Rico) |
| Latitude | 18.079961 |
| Longitude | -66.973233 |
| Density | N/A /km² |
| Incorporated | N/A |
| ZIP Code | 00603 |
| Area Code | 787, 939 |
San Antonio occupies a quiet reach of the interior landscape where the land shifts into a complex geometry of slopes and verdant depressions. It lies 1.4 miles east-northeast of Caguas, PR (from Caguas, PR: bearing 62°T), and is situated 9.5 miles southeast of Guaynabo. The Río Caguitas carves a deliberate path through the terrain, its waters animating the earth with a steady, liquid persistence that defines the local topography. To the north, the silhouettes of the Altos de San Luis rise with a jagged, gray clarity against the afternoon sky, while the nearby Quebrada Las Bambúas deepens the basin into a fertile, shadowed hollow. Here, the air holds a heavy, humid stillness that settles over the Unknown Local Park, grounding the environment in a sense of permanence that feels detached from the rapid movement of the modern world.
History in San Antonio resonates through the persistent labor of those who have long worked these inland fields, maintaining an economy tied to the rhythms of the soil and the seasonal shifts of the tropical climate. The local character is marked by a quiet, enduring industry, far removed from the transient pressures of the coast, as residents maintain a life defined by the immediate physical reality of the central highlands. While the distant El Rada Trail offers a rare passage through the more rugged reaches of the region, the daily experience of the population remains centered on the modest, functional architecture and the steady, unadorned progress of their trade. In the waning light of dusk, the transition between the vibrant green of the vegetation and the darkening ridges creates a visual clarity that makes San Antonio feel like a singular, concentrated point of existence in the vast, mountainous interior.
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This page provides an embedded street and satellite map of San Antonio, Puerto Rico. Coordinates: 18.079961, -66.973233. Live weather conditions are sourced directly from the National Weather Service. Real-time local and world news feeds keep the page current.
Detailed location data for San Antonio includes the ZIP code (00603), telephone area code (787, 939), county seat of Caguas County, and school district assignment.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity. Population figures are sourced from the 2020 US Census.
| Page generated | August 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. |