California's 2nd congressional district is a U.S. congressional district in California. Jared Huffman, a Democrat, has represented the district since January 2013. Currently, it encompasses the North Coast region and adjacent areas of the state. It stretches from the Golden Gate Bridge to the Oregon border, and includes all of the portions of Highway 101 within California that are north of San Francisco, excepting a stretch in Sonoma County. The district consists of Marin, Mendocino, Humboldt, Del Norte, and Trinity Counties, plus portions of Sonoma County. Cities in the district include San Rafael, Petaluma, Novato, Windsor, Healdsburg, Ukiah, Fort Bragg, Fortuna, Eureka, Arcata, McKinleyville, Crescent City, and northwestern Santa Rosa.^[1]

From 2003 until the redistricting by the California Citizens Redistricting Commission that took effect in 2013, the 2nd district encompassed much of the far northern part of the state, from the Central Valley north of Sacramento to the Oregon border. It was the largest district by area in California.^{[citation needed]} It consisted of Colusa, Glenn, Shasta, Siskiyou, Sutter, Tehama, Trinity, and Yuba counties, plus portions of Butte and Yolo counties.

The district had a dramatically different political history than its current incarnation. While the current 2nd is one of the most Democratic districts in California, the old 2nd had been a Republican stronghold for almost three decades. Much of this territory is now the 1st district, while most of the current 2nd had been split between the 1st and 6th districts from 2003 to 2013.

As of the 2020 redistricting, California's 2nd district is located on the North Coast. It encompasses Del Norte, Humboldt, Marin, Mendocino, and Trinity Counties, as well as most of Sonoma County.

Sonoma County is split between this district and the 4th district. They are partitioned by the Petaluma River, Highway 116, Redwood Highway, Robber Rd, Petersen Rd, Llano Rd, S Wright Rd, W College Ave, Jennings Ave, Administration Dr, Bicentennial Way, Cleveland Ave, Old Redwood Highway, Cross Creek Rd, Sonoma Highway, and Sonoma Creek. The 2nd district takes in the Monroe District of Santa Rosa, and the cities of Petaluma and Healdsburg.

• List of United States congressional districts