Concord (/ ˈkɒŋkərd / KON-kerd) [10] is the most populous city in Contra Costa County, California, United States.

7 hours ago · Seven miles above the Mojave Desert, a spindly white aircraft made history. Flanked by the snow-capped Tehachapi Mountains, the jet barreled through California’s supersonic corridor and, at a carefully chosen moment, nudged its way past the sound barrier.

2 days ago · Boom Supersonic, the American company building what promises to be the world’s fastest airliner, broke the sound barrier for its first time with a test flight in Mojave.

1 day ago · Boom, the American company building what promises to be the world's fastest airliner, broke the sound barrier for its first time with a test flight in Mojave, California.

2 days ago · Boom Supersonic, the American company building what promises to be the world’s fastest airliner, broke the sound barrier for its first time with a test flight in Mojave, California, on Tuesday.

2 days ago · A milestone effort for mankind: Today a civil test airliner, Boom Technology’s XB-1, broke the sound barrier for the first time in two decades.

Is your property in a special flood hazard area? Here's how to prepare: check your flood zone; get flood insurance; and learn more. View our resources. Learn More.

Jan 16, 2025 · Concord, city, Contra Costa county, California, U.S. It lies 30 miles (50 km) east of San Francisco. The area was first inhabited by the Bay Miwok Indians and was explored by the Spanish in the late 18th century. A land grant, called Monte del Diablo, was made in 1834 to Don Salvio Pacheco.

Discover places to visit and explore on Bing Maps, like Concord, California. Get directions, find nearby businesses and places, and much more.

Concord is the largest city in Contra Costa County, California, US. In the 2020 census, 125,410 people lived there. [5] Concord was founded in 1869. It was named Todos Santos at first, but the name was soon changed to Concord. The city is 31 miles (50 km) east of San Francisco.