Other cities in the 925 area code include: Livermore, Danville, Pittsburg, Martinez, Brentwood, Oakland, Lafayette, Clayton, Orinda, Moraga, Sunol, Oakley, Fremont, Hayward, and Pleasant Hill.
Walnut Creek is a city in Contra Costa County, California, United States, located 16 miles (26 kilometres) east of the city of Oakland in the East Bay region of the San Francisco Bay Area. Although not the largest city within the county, Walnut Creek serves as a hub for its neighboring cities because of its location at the junction of (I-680) and San Francisco/Oakland (SR-24) and its accessibility by BART. Its active downtown neighborhood features hundred-year-old buildings and extensive high-end retail establishments, restaurants and entertainment venues. As of 2014, the city's total estimated population is 67,673.
Concord is the largest city in Contra Costa County, California. At the 2010 census, the city had a population of 122,067 making it the 8th largest city in the San Francisco Bay Area. Founded in 1869 as the community of Todos Santos by Salvio Pacheco, the name was changed to Concord within months. The city is a major regional suburban East Bay center within the San Francisco Bay Area, and is 29 miles (47 kilometres) east of San Francisco.
San Ramon is a city in Contra Costa County, California, United States, located 34 miles east of San Francisco, and within the San Ramon Valley. San Ramon's population was estimated as 76,134 in mid-2015 by the US Census Bureau, making it the 4th largest city in Contra Costa County, behind Richmond, Concord and Antioch.San Ramon is home to the headquarters of Chevron, 24-Hour Fitness, the West Coast headquarters of AT&T Inc., The Global Software Center of GE, as well as the San Ramon Medical Center. Major annual events include the Art and Wind Festival on Memorial Day weekend and the Run for Education in October.On April 24, 2001, San Ramon received the title Tree City USA.
The 925 area code lies within the Pacific Daylight Time Zone (or PDT). The current time in Pacific Daylight Time is 4:51 PM on May 24, 2022.