Explore San Marino, California, 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.
This interactive map shows the street layout and satellite imagery for San Marino, California. 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 California 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 Marino.
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 Marino |
| State | California (CA) |
| County | Los Angeles County |
| Country | United States of America |
| Timezone | Pacific Time (America/Los_Angeles) |
| Latitude | 34.121397 |
| Longitude | -118.106458 |
| Population | 12,513 |
| Density | 1282.9 /km² |
| Incorporated | Yes |
| ZIP Codes | 91108, 91118 |
| Area Code | 310, 424 |
| County Seat | Los Angeles |
| School District | San Marino Unified School District |
San Marino reveals itself as a quiet expanse of inland territory, defined by the gentle, persistent presence of the Rubio Wash as it cuts through the local topography. It lies 1.7 miles north of San Gabriel, CA (from San Gabriel, CA: bearing 359°T), and is situated 9.2 miles east-northeast of Los Angeles. The landscape here is characterized by a dry, golden light that settles over the suburban streets during the long summer months. To the north, the jagged profile of the San Gabriel Mountains rises against the horizon, providing a constant, imposing backdrop to the neighborhood foliage. While the nearby Eaton Canyon adds depth to the regional basin, the immediate environment remains a cultivated blend of residential architecture and mature, deep-rooted trees. The air carries the scent of warming earth and dry grass, a reminder of the inland climate that persists far from any maritime influence.
San Marino traces its origins to the legacy of large-scale land grants, eventually evolving into a residential enclave that values quiet preservation over industrial expansion. The local economy is not driven by large factories or sprawling commerce, but rather by the professional endeavors of its residents and the careful maintenance of its property values. Historical development here was heavily influenced by the vision of early developers who sought to create a refined, orderly environment. Today, the economic pulse of San Marino relies on a service-oriented framework that supports the upkeep of its wide, tree-lined boulevards and distinctive private estates. The lack of heavy industry has kept the pace of life deliberate, favoring a stable atmosphere where historical character is maintained through strict zoning and thoughtful stewardship.
San Marino serves as a quiet sanctuary for the Huntington Library and Botanical Gardens, a sprawling expanse of curated landscapes that defines the cultural identity of the region. Visitors often wander through these grounds, finding solace in the quiet arrangements of plants and rare manuscripts that represent the scholarly pursuits of the area. The local calendar is punctuated by community gatherings that reflect a tradition of civic engagement and quiet neighborhood pride. Notable individuals, such as the historic philanthropist Henry Huntington, left an indelible mark on the character of the place through the creation of these world-renowned collections. Residents occasionally venture out to hike the Mount Wilson Trail, seeking the physical challenge of the higher elevations. This blend of intellectual life and appreciation for the natural world creates a distinct, measured spirit that defines how San Marino functions day to day.
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This page provides an embedded street and satellite map of San Marino, California. Coordinates: 34.121397, -118.106458. 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 Marino includes the ZIP code (91108, 91118), telephone area code (310, 424), county seat of Los Angeles County (Los Angeles), and school district assignment (San Marino Unified School District).
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. |