San Isidro Puerto Rico Map
Explore San Isidro, Puerto Rico, with this interactive street and satellite map.
This page also offers TOPO MAPS — the official USGS topographic sheets — plus USGS aerial imagery, a labelled USNG grid overlay, a distance and bearing tool, and a GPS grid-reference readout. See How to Use This Map below.
Interactive Map of San Isidro, Puerto Rico
How to Use This San Isidro, Puerto Rico Map
This interactive map shows the street layout and satellite imagery for San Isidro, Puerto Rico. Use the Map and Satellite buttons above to switch between street map and aerial imagery views. Use the + and − buttons to zoom in or out, or scroll your mouse wheel while holding the Control key to zoom. On a touchscreen, use a two-finger pinch gesture. Drag the map to pan to any area of Puerto Rico or beyond.
Click ⛶ Fullscreen to expand the map to fill your screen. To return to the normal page view, press the Escape key, click the ✕ Exit Fullscreen button that appears above the map, or on a mobile device tap the back button (Android) or the close icon (iOS).
TOPO MAPS — NEW. Click the green 🔍 Search Maps button below the map to open a second map with a Base map row offering three choices. OSM is the standard OpenStreetMap street map. Topo shows the official USGS topographic maps from The National Map — contours, hydrography, land cover and shaded relief, the same mapping used for hiking, hunting and back-country navigation in the Adirondacks, the Catskills and the Finger Lakes. Imagery shows USGS aerial photography, mostly 1-metre NAIP. The search box finds any US town, county or landmark by name, so you are not limited to San Isidro.
Reading the map like a paper quad. Click Grid to overlay the U.S. National Grid (USNG), labelled along the edges exactly as a printed topographic sheet is — at normal zoom the squares are one kilometre across, so you can read a six-figure grid reference by eye and judge distance directly off the map. Click Measure, then tap two points, to get the distance between them together with the grid bearing in degrees and mils, the true bearing, and the magnetic bearing to set on a compass.
Click 📍 My position to take a single GPS reading from your device. It marks where you are and reports your position as a USNG grid reference as well as plain latitude and longitude — USNG being the format FEMA and US search and rescue teams work from — with a Copy position button so you can paste it straight into a text message. It takes one reading and stops, rather than tracking continuously, to conserve your battery. Note that map tiles need cell coverage, but a GPS reading does not — your coordinates stay correct even where the map itself cannot load.
| City | San Isidro |
| State | Puerto Rico (PR) |
| County | Loíza County |
| Country | United States of America |
| Timezone | Atlantic Standard Time — no DST (America/Puerto_Rico) |
| Latitude | 18.07635 |
| Longitude | -66.954344 |
| Density | N/A /km² |
| Incorporated | N/A |
| ZIP Code | 00729 |
| Area Code | 787, 939 |
About San Isidro, Puerto Rico
San Isidro is a locality in Loíza County, Puerto Rico, United States. San Isidro is located at 18.0764°N, 66.9543°W. It observes the Atlantic Standard Time — no DST (America/Puerto_Rico) timezone. ZIP code: 00729.San Isidro rests upon a landscape defined by the persistent, rhythmic presence of the Caño San Isidro, which winds through the earth with a quiet determination. It lies 4.9 miles east of Carolina, PR (from Carolina, PR: bearing 79°T), and is situated 8.5 miles east-northeast of Trujillo Alto. To the west, the slopes of the Cuchilla de Santa Inés rise in a steady, green ascent, separating the low-lying basin of the Quebrada Angela from the distant, hazy blue of the horizon. The air here holds a heavy, salt-sweet moisture, a reminder that the tides of the Ensenada Comezón exert a subtle pull on the atmosphere even from miles away. During the golden hour, the light catches the tall grasses along the riverbanks, turning the moisture-laden air into a pale, glowing veil that softens the sharp edges of the terrain and makes the distant silhouette of the Islote de Juan Pérez appear to hover just above the water.
San Isidro maintains a steady existence, its character forged by the interplay of agricultural heritage and the slow, deliberate pace of local trade. While the nearby Bosque Estatal de Piñones provides a dense, wild sanctuary of mangrove and canopy, the daily life of the residents gravitates toward the small, familiar spaces like the Unknown Local Park, where the afternoon heat is often broken by the murmurs of neighbors. The economy remains tethered to the land and the proximity to the coast, reflecting a history of resilience that is as deep as the soil of the valley. Though the more dramatic heights of the Vereda El Yunque and the thunderous descent of the Catarata Coca lie far to the east, San Isidro possesses its own quiet gravity, an enduring sense of place where the people move in harmony with the seasonal rise and fall of the water.
Nearby Outdoor Places
- Unknown Local Park (Local Park) — 0.4 mi, 300° NW
- Area Recreativa Orlando López Martínez (Local Park) — 0.6 mi, 316° NW
- Bosque Estatal de Maricao (State Resource Management Area) — 1.9 mi, 338° N
- Bosque Estatal de Susúa (State Resource Management Area) — 2.2 mi, 065° NE
- Forest Legacy Program acquisition - Finca Busigó Maricao (State Conservation Area) — 5.1 mi, 357° N
- Bosque Estatal de Guánica (State Conservation Area) — 6.9 mi, 131° SE
- Bosque Estatal de Guánica Natural Reserve (Marine Protected Area) — 7.3 mi, 146° SE
- La Parguera Natural Reserve (Marine Protected Area) — 7.6 mi, 196° S
- Laguna Cartagena National Wildlife Refuge (National Wildlife Refuge) — 10.8 mi, 243° SW · 540 acres
- Cabo Rojo National Wildlife Refuge (National Wildlife Refuge) — 15.0 mi, 243° SW · 5,583 acres
- Cavernas del Río Camuy (State Park) — 20.0 mi, 025° NE
- El Yunque National Forest (National Forest) — 34.9 mi, 051° NE · 29k acres
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About This San Isidro Map Page
This page provides an embedded street and satellite map of San Isidro, Puerto Rico. Coordinates: 18.07635, -66.954344. 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 Isidro includes the ZIP code (00729), telephone area code (787, 939), county seat of Loíza County, and school district assignment.
Search Maps opens a second, independent map. It searches OpenStreetMap for any US town, county or landmark by name; offers USGS topographic maps and USGS aerial imagery as base layers; overlays a labelled U.S. National Grid (USNG) so the map can be read like a printed topographic quad; measures distance and grid, true and magnetic bearings between any two points; and takes a single GPS fix reporting your position as a USNG grid reference and as latitude and longitude. Map tiles require cell coverage, but a GPS position does not, so the coordinates remain correct even where the map cannot load.
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 | September 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Map layers | Google Maps; © OpenStreetMap contributors; USGS The National Map topographic and aerial imagery (public domain); magnetic declination from NOAA NCEI (World Magnetic Model) |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. |
