Antioch

Antioch is a city along the San Joaquin River Delta in California's East Bay region at roughly 13 meters (43 feet) above sea level. The urban area spreads across flat terrain connecting residential neighborhoods with commercial streets and waterfront zones.

The city received official incorporation on February 6, 1872, after growing as a supply center during the California Gold Rush. Later expansion came through agriculture and river trade that turned the settlement into a regional hub.

The Antioch Historical Museum preserves pioneer-era artifacts and displays everyday objects from early settlers. Local communities maintain waterfront parks and public spaces that invite gatherings and outdoor recreation along the river.

Local bus routes and the Bay Area Rapid Transit link the urban area with surrounding towns and San Francisco. Parking spots are available along commercial streets and near the waterfront, where walking paths and fishing spots are accessible.

Black Diamond Mines Regional Preserve sits in nearby hills and holds underground tunnels from the 19th century that recall the coal mining era. Visitors can walk through some tunnels and explore remnants of old shafts.

Location: Contra Costa County

Elevation above the sea: 13 m

Shares border with: Rio Vista, Pittsburg, Brentwood

Website: https://antiochca.gov

GPS coordinates: 38.00500,-121.80583

Latest update: December 12, 2025 23:10