24/7 Trauma and Biohazard Cleanup in Antioch, CA

Antioch is one of the oldest towns in California, founded in 1850 as Smith's Landing by brothers William and Joseph Smith on the San Joaquin River.

Antioch got its start a couple of years earlier, in 1848, when John Marsh, owner of the huge Rancho Los Meganos, built a landing on the river at what is now Antioch.

Antioch was renamed in 1851 for the biblical city of Antioch, after the town's new minister persuaded residents to drop the Smith's Landing name.

Antioch was incorporated on February 6, 1872, and grew from a small agricultural river town into a major industrial center on the Sacramento-San Joaquin River Delta.

Antioch sits on the south bank of the San Joaquin River in eastern Contra Costa County, at the western edge of the California Delta in the East Bay region of the San Francisco Bay Area.

Antioch had a population of 115,291 at the 2020 census, up from 102,372 in 2010, making it one of the largest cities in Contra Costa County.

Antioch has about 37,381 households, with an average of about 3.09 people per household, reflecting its family-oriented suburban character.

Antioch briefly boomed on a copper discovery in 1863, when smelting works were built to process ore from the nearby hills, though the copper bubble soon burst.

Just south of Antioch, the 6,000-acre Black Diamond Mines Regional Preserve protects the Mount Diablo Coal Field, California's largest coal-mining district, which produced more than 4 million tons of coal between 1850 and 1906.

Black Diamond Mines Regional Preserve preserves the relics of three vanished coal towns, including Nortonville and Somersville, and offers about 60 miles of trails plus guided tours of a former silica sand mine.