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Contra Costa County (/ ˌ k ɒ n t r ə ˈ k ɒ s t ə / ⓘ; Contra Costa, Spanish for 'Opposite Coast') is a county located in the U.S. state of California, in the East Bay of the San Francisco Bay Area. As of the 2020 United States Census, the population was 1,165,927. The county seat is Martinez.
Contra Costa County. East of the Oakland Hills that border the East Bay, Contra Costa County maintains a very separate culture and lifestyle than its Bay Area neighbors. The area is mostly residential—although many San Francisco businesses have moved here to avoid high city taxes—and affluent, and consequently considerably more conservative.
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38.005-121.80581 Antioch37.9319-121.69582 Brentwood37.944-121.9363 Clayton— in the foothills of Mount Diablo37.972-1224 Concord — home of jazzpianist Dave Brubeck37.8817-121.91421 Mount Diablo State Park - This 20,000-acre (80 km2) park provides great hiking opportunities on a mountain that dominates the landscape for most of central and eastern Contra Cost...
By car
State Route 24, through the venerable Caldecott Tunnel, is the main entrance to Contra Costa from San Francisco, Oakland and Berkeley. Interstate 680 is the main route linking Contra Costa to the South Bay and Silicon Valley to the south, and to Sacramento to the north. Interstate 580 links Contra Costa to central Alameda County to the west, and to Stockton and the Central Valleyto the east.
By plane
There are no major airports in Contra Costa County with regularly scheduled passenger service, though there are several general aviation airports. One must either use the Bay Area airports serving San Francisco, Oakland, or San Jose, or the Central Valley airports serving Stockton or Sacramento. The county also has two airports that do not provide passenger service: 1. Buchanan Field Airport, in Concord 2. Byron Airport, two miles (3 km) south of Byron
The 'mothball fleet', a group of ships mostly from the World War II era, sits just east of Martinez. The ships are being stored rather than dismantled. Among the ships there is the Glomar Explorer, built by Howard Hughes for the US Government to scavenge a sunken Soviet Submarine. The fleet is visible from vista points along Interstate 680 on the n...
Contra Costa has many parks and trails, as well as reservoirs and house museums managed by the East Bay Regional Parks System, East Bay MUD (Municipal Utility District = the local water company), designated Open Space areas, Mt. Diablo State Park, etc. There are also many performing arts venues, including the Chronicle Pavilion in Concord. The Cali...
Richmondhas high rates of homicide, robbery, assault, rape, carjacking, and other violent crimes, and visitors should exercise extra caution. Fire dangers at refineries in the county have on rare occasions caused alerts where residents were told to "shelter in place" and avoid unnecessary outdoors excursions due to the potential for hazardous fumes...
38.51-122.931 Sonoma County - Although its wineries may not be as famous as those in the Napa Valley, Contra Costa County's northwestern neighbor is actually the largest wine producer in California...38.27-121.942 Solano County - Located north of Contra Costa County, Solano County is far more rural than the other Bay Area counties, and includes significant portions of the California Delta, as w...38.45-121.353 Sacramento County - Bordering Contra Costa County to the northeast, Sacramento County stretches from the wetlands at the edge of the San Francisco Bay to the rolling hills of Gold Cou...37.93-121.274 San Joaquin County - San Joaquin County lies to the east of Contra Costa County on the eastern edge of the California Delta, an estuary formed by the confluence of the San Joaquin and...5 days ago · News & Updates. We want to ensure you have all the news & announcements. 2024 Summer County Block Party. Posted on May 21, 2024. Join us for Contra Costa County’s 6th Annual Summer Block Party from 4 to 7 p.m. on Thursday, June 2... Read more... Board of Supervisors Adopt Fiscal Year 2024-2025 Budget. Posted on May 21, 2024.
Concord ( / ˈkɒŋkərd / KON-kerd) [10] is the most populous city in Contra Costa County, California, United States. According to an estimate completed by the United States Census Bureau, the city had a population of 129,295 in 2019, [11] making it the eighth largest city in the San Francisco Bay Area.
Resources. Maps and Data. Demographics. Contra Costa County Demographic Quick Facts. US Census Bureau Contra Costa County Profile. View Contra Costa County's Profile. 2022 Population Estimate: 1,156,555.
May 26, 2015 · CONTRA COSTA. County seat, Martinez. Created February 18, 1850. The name signifies “opposite coast,” because of its situation opposite San Francisco, in an easterly direction, on San Francisco Bay. In 1853, Alameda County was formed from territory originally included in this county. Print-friendly.
