Diamond Bar California Map

About Diamond Bar, California

Diamond Bar is a locality in Los Angeles County, California, United States. It has a population of 53,355. The population density is 1394.9 people per km². Diamond Bar is located at 34.0286°N, 117.8103°W. It observes the Pacific Time (America/Los_Angeles) timezone. ZIP code: 91789.

Diamond Bar rises from the rolling foothills where the San Gabriel Mountains begin to soften their grip on the urban sprawl, a landscape sculpted by ancient watercourses and the persistent California sun. It lies 3.2 miles east of Walnut, CA (from Walnut, CA: bearing 80°T), and is situated 9.4 miles west-south-west of Ontario. The terrain here is a tapestry of chaparral-covered slopes and broad, sun-drenched valleys, where the air often carries the dry, herbal scent of sage and the distant hum of traffic. Houses climb the hillsides like tenacious blossoms, their rooftops catching the light as it shifts from the sharp, bright clarity of midday to the molten gold of evening. The very contours of Diamond Bar suggest a place of transition, where the raw beauty of the undeveloped land meets the organized lines of human habitation, a constant, gentle dialogue between wildness and order. Historically, this region was shaped by agricultural endeavors, with citrus groves and vineyards once gracing these fertile soils, a legacy still whispered in the names of streets and the occasional mature fruit tree stubbornly clinging to life. The development of Diamond Bar, like much of Southern California, accelerated in the post-war era, transforming open country into a thriving suburban center. Today, its economy is a vibrant mix, drawing strength from its strategic position within the greater Los Angeles metropolitan area, serving as a hub for commerce and innovation. The presence of educational institutions fosters a sense of forward momentum, and the community, while embracing modern conveniences, retains a distinct character, a quiet pride in its unique geographical embrace between rugged nature and the pulse of a vast metropolis.

About This Diamond Bar Map Page

This page provides an embedded street and satellite map of Diamond Bar, California — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 34.028623, -117.810337. Live weather conditions are sourced directly from the National Weather Service, with current observations and a 7-day forecast also powered by Open-Meteo. Real-time local news and world news feeds keep the page current, while a Wikipedia summary or an editorially written description provides background on Diamond Bar and Los Angeles County.

Detailed location data for Diamond Bar includes the ZIP code (91765), telephone area code (818, 747), county seat of Los Angeles County (Los Angeles), and school district assignment (Walnut Valley Unified School District). These are among the most commonly searched location details for any US city or town.

Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity — ensuring the correct Diamond Bar is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.