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Diamond Bar California Map

Explore Diamond Bar, 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.

Interactive Map of Diamond Bar, California

How to Use This Diamond Bar, California Map

This interactive map shows the street layout and satellite imagery for Diamond Bar, 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 Diamond Bar.

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	Diamond Bar
State	California (CA)
County	Los Angeles County
Country	United States of America
Timezone	Pacific Time (America/Los_Angeles)

Latitude	34.001573
Longitude	-117.817601
Population	55,072
Density	1430.0 /km²
Incorporated	Yes
ZIP Codes	91765, 91789
Area Code	818, 747
County Seat	Los Angeles
School District	Walnut Valley Unified School District

🌦 Goto Diamond Bar Weather Page: Diamond Bar, California — Weather Warnings, Forecast, Radar, Satellite & Current Conditions

About Diamond Bar, California

Diamond Bar is a locality in Los Angeles County, California, United States. It has a population of 55,072. The population density is 1430.0 people per km². Diamond Bar is located at 34.0016°N, 117.8176°W. It observes the Pacific Time (America/Los_Angeles) timezone. Diamond Bar is an incorporated locality. ZIP codes: 91765, 91789.

Diamond Bar occupies a complex, elevated terrain defined by the persistent, golden light that settles over its ridges and deep folds each evening. It lies 3.2 miles east of Walnut, CA (from Walnut, CA: bearing 80°T), and is situated 9.4 miles west-southwest of Ontario. The landscape here is one of significant topographic variation, characterized by high-ground residential tracts that overlook the intricate drainage patterns of the region. South San Jose Creek flows quietly through the lower elevations, marking the land with a narrow, shaded corridor that contrasts with the arid, sun-bleached slopes nearby. Far to the north, the San Gabriel Mountains rise as a jagged, atmospheric silhouette, holding the horizon in a permanent, distant embrace while the local geography remains shaped by the inland heat and the quiet, dry air of the interior plains.

Diamond Bar emerged from the expansive legacy of the Rancho Los Nogales, a land grant that once defined the pastoral character of this territory. Long before the suburban architecture took root, the land served as a working landscape where the rhythms of cattle and cultivation dictated the passage of time. The transition from these vast, open ranges to the modern grid occurred in the mid-twentieth century, as the demand for residential expansion transformed the former ranching acreage into a structured, planned environment. Evidence of this transition remains in the orientation of the streets, which follow the natural contours of the terrain rather than a rigid, unforgiving geometry, preserving a sense of the land’s original, rugged anatomy.

Economic life in Diamond Bar centers on a steady, professional infrastructure that supports a population deeply integrated into the larger regional commerce. While the municipal core facilitates local services and retail, the proximity of major arterial transit routes allows for a seamless movement of labor toward the broader metropolitan centers of industry. Educational needs are met by a robust system of public schools, while higher learning opportunities are accessible via the nearby university systems that draw from the surrounding counties. Beyond the commercial plazas and office parks, the local maintenance of utility and road networks ensures the continued functionality of the suburban landscape, anchoring the daily movement of commuters and residents to the larger, interconnected systems of the basin.

Diamond Bar fosters a quiet, suburban culture that finds its recreation in the expansive, green corridors of the Diamond Bar Golf Course, where the fairways provide a necessary counterpoint to the surrounding, sun-drenched hills. Life here is often defined by the seasonal shift from the brown, dormant grasses of late summer to the brief, emerald vitality that follows the winter rains. While local events and community gatherings bring residents together, the proximity to the San Dimas Experimental Forest offers a more solitary connection to the native chaparral and woodland environments. Residents often look toward the distant peaks of the San Gabriel Mountains or visit the reflective, still waters of Arnold Reservoir to find a sense of scale, living in a place that feels simultaneously grounded in its local history and pulled toward the expansive, inland horizon of the region.

Nearby Outdoor Places

Sycamore Canyon Park (Local Park) — 0.3 mi, 010° N
Chapparel Middle School Sign (Public Artwork) — 0.4 mi, 177° S
Diamond Bar Windmill (Monument) — 0.4 mi, 089° E
Diamond Bar Golf Course (Local Recreation) — 0.4 mi, 335° NW
Summit Ridge Park (Local Park) — 1.0 mi, 098° E
Chino Hills Open Space (Local Recreation) — 2.4 mi, 090° E
Mt. SAC - Randall Planetarium (Museum) — 3.5 mi, 335° NW
Chino Hills State Park (State Park) — 3.8 mi, 180° S
Nike Missile LA-29 Launch Battery Site (Historic Ruins) — 4.9 mi, 234° SW
Nike Missile LA-29 IFC Site (Historic Ruins) — 5.5 mi, 234° SW
Don Gaspor Portola Marker (Monument) — 6.0 mi, 224° SW
Redwood Grove (Attraction) — 6.1 mi, 190° S
Brea War Memorial (Monument) — 7.1 mi, 215° SW
Curtis Theatre (Theatre) — 7.1 mi, 215° SW
Brea Art Gallery (Gallery) — 7.1 mi, 215° SW
Chino Youth Museum (Museum) — 7.3 mi, 083° E
Pinot's Palette (Arts Centre) — 7.4 mi, 219° SW
Richard Nixon Presidential Library (Museum) — 7.8 mi, 180° S
Arovista Park Ampletheater (Theatre) — 7.9 mi, 220° SW
Dutch Masters Art Academy (Arts Centre) — 7.9 mi, 184° S
Rowland House (historical) (Museum) — 8.0 mi, 275° W
Studio Claremont (Gallery) — 8.4 mi, 041° NE
Workman and Temple Family Homestead Museum (Museum) — 8.6 mi, 278° W
Angeles National Forest (National Forest) — 9.6 mi, 005° N · 662k acres
San Gabriel Mountains National Monument (National Monument) — 9.8 mi, 002° N · 454k acres
Cleveland National Forest (National Forest) — 12.8 mi, 140° SE · 426k acres
Sheep Mountain Wilderness (Wilderness Area) — 16.7 mi, 020° N · 43k acres
San Gabriel Wilderness (Wilderness Area) — 17.0 mi, 346° N · 36k acres
Seal Beach National Wildlife Refuge (National Wildlife Refuge) — 22.6 mi, 220° SW · 1,777 acres
California Coastal National Monument (National Monument) — 28.4 mi, 186° S · 8,946 acres

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