Diamond Bar, California
Diamond Bar: A city in Los Angeles County, California.
About
Diamond Bar is a city located in the county of Los Angeles in the U.S. state of California. Its population at the 2010 census was 55,544. After 10 years in 2020 city had an estimated population of 54,880 inhabitants.
Quick Facts about Diamond Bar
| Population | 54,880 (2020) |
| Country | United States of America |
| State | California (United States) |
| County | Los Angeles County |
| Postal code | 91765 |
| Phone Area Codes | 909 |
| Water as percent of area | 0.04% |
| Land as percent of area | 99.96% |
| Latitude & Longitude | 34.0286,-117.8103 |
| Altitude | 2,283 feet / 696 meters |
| Time Zone | America/Los_Angeles |
| Local time | 01:56:08 (19th April 2026) |
| Population growth | -1.21% (2010-2020) |
| Weather | 54℉ Partly Cloudy 7-days weather |
Geography
Diamond Bar is located at 34°1'43"N 117°48'37"W (34.0286200, -117.8103400).
Diamond Bar map
icon to open full mode. View satellite images
Weather
Partly cloudy, with a low around 54.
7-Day ForecastOfficial website of Diamond Bar
Official WebsiteDemographics
According to census records, the population of Diamond Bar decreased by 1.21% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 55,544 | - | census |
| 2011 | 55,854 | 0.56% | estimation process |
| 2012 | 56,087 | 0.42% | estimation process |
| 2013 | 56,233 | 0.26% | estimation process |
| 2014 | 56,279 | 0.08% | estimation process |
| 2015 | 56,429 | 0.27% | estimation process |
| 2016 | 56,581 | 0.27% | estimation process |
| 2017 | 56,334 | -0.44% | estimation process |
| 2018 | 56,106 | -0.41% | estimation process |
| 2019 | 55,720 | -0.69% | estimation process |
| 2020 | 54,880 | -1.53% | estimation process |
Where to Stay in Diamond Bar
1Ayres Suites Diamond Bar
21951 Golden Springs Dr, Diamond Bar, CA 91765, United States View details
Phone: +19098606290 | Website available
2Holiday Inn Diamond Bar - Pomona, an IHG Hotel
21725 Gateway Center Dr, Diamond Bar, CA 91765, United States View details
Phone: +19098605440 | Website available
3Best Western Diamond Bar Hotel & Suites
259 Gentle Springs Ln, Diamond Bar, CA 91765, United States View details
Phone: +19098603700 | Website available
Services and Civic Places in Diamond Bar
1Diamond Bar City Hall
21810 Copley Dr, Diamond Bar, CA 91765, United States View details
Phone: +19098397000 | Website available
People born in Diamond Bar (13)
People born in Diamond Bar, including movie actress and director Gia Paloma, vocalist Jessica Jarrell, baseball player Gary Brown, .
More notable people
- Jake Dancy (Footballer) he was born in 09/04/1978
- Paula Miranda (actress) she was born in 27/07/1976
- Ryan Smith (former American football cornerback) he was born in 17/07/1985
- Ryan Wendell (American football player) he was born in 04/03/1986
- Sheldon Jackson (American football player) he was born in 24/07/1976
- Xavier Scruggs (professional baseball player) he was born in 23/09/1987
- Colin Lockett (American-football player (1991-)) he was born in 05/04/1991
- Nadia Mejia (american model) she was born in 22/11/1995
- Sidney Jones (American football player) he was born in 21/05/1996
- Kristine Songco (American television screenwriter)
Nearby Schools and Colleges
Schools and campuses linked to Diamond Bar, CA. Select a name to open its map and contact details.
| Code | Name | City | ZIP |
|---|---|---|---|
| 110529 | California State Polytechnic University-Pomona | Pomona (CA) | 91768 |
| 119164 | Mt San Antonio College | Walnut (CA) | 91789-1399 |
| 467368 | Carrington College-Pomona | Pomona (CA) | 91768-2642 |
| 372082 | Pomona Unified School District Adult and Career Education | Pomona (CA) | 91766-1233 |
| 112525 | Western University of Health Sciences | Pomona (CA) | 91766-1854 |
Nearby Transit Stations (49)
Rail and bus stations connected to Diamond Bar, CA. Select a station to open its map and address details.
| Code | Name | Address | Type |
|---|---|---|---|
| POS | Pomona station | 100 West Commercial Street | RAIL |
| CLM | Claremont, California | 200 West First St. | BUS |
| ONA | Ontario | 228 South Plum Street | RAIL |
| FUL | Fullerton Transportation Center | 120 East Santa Fe Avenue | RAIL |
| ANA | Anaheim Regional Transportation Intermodal Center | 2150 East Katella Avenue | RAIL |
Closest post offices linked to Diamond Bar.
| Post Office Name | City | ZIP |
|---|---|---|
| Diamond Bar Post Office | Diamond Bar (CA) | 91765 |
| Walnu Post Office | Walnut (CA) | 91788 |
| Pomona Post Office | Pomona (CA) | 91769 |
| Chino Hill Post Office | Chino Hills (CA) | 91709 |
| Rowland Heigh Post Office | Rowland Heights (CA) | 91748 |
Other cities in Los Angeles County
Cities, towns, neighborhoods & other populated places in Los Angeles County , CA. (more)
| City Name | Population | Title |
|---|---|---|
| Los Angeles | 3,970,219 | The second most populous city in the United States and the center of the Los Angeles metropolitan area. |
| Long Beach | 454,681 | The second most populous city in California, Long Beach is a major center for business, manufacturing, and tourism. |
| Santa Clarita | 209,990 | The second most populous city in Los Angeles County, California. |
| Glendale | 197,747 | The second most populous city in Los Angeles County, California. |
| Lancaster | 155,822 | The most populous city in Los Angeles County, California. |
| Palmdale | 150,498 | The most populous city in Los Angeles County, California. |
| Pomona | 149,212 | The sixth most populous city in Los Angeles County, California. |
| Torrance | 141,553 | The third most populous city in Los Angeles County, California. |
| Pasadena | 141,045 | The second most populous city in Los Angeles County, California. |
| East Los Angeles | 126,496 | Census-designated place in Los Angeles County, California, United States |
| El Monte | 112,344 | The most populous city in Los Angeles County, California. |
| Downey | 109,202 | The most populous city in Los Angeles County, California. |
| Inglewood | 107,203 | The most populous city in Los Angeles County, California. |
| Santa Maria | 105,851 | The third most populous city in Santa Barbara County, California. |
| West Covina | 103,656 | The most populous city in Los Angeles County, California. |
| Norwalk | 102,635 | The most populous city in Los Angeles County, California. |
Distance to Other Cities
Diamond Bar distances to largest California cities