California's 49th congressional district
California's 49th congressional district is a congressional district in the U.S. state of California. The district is represented by Mike Levin. The district currently covers the northern coastal areas of San Diego County, including Oceanside, Vista, Carlsbad, and Encinitas, as well as a portion of southern Orange County, including San Clemente, Dana Point, San Juan Capistrano, Ladera Ranch, and Coto de Caza. Marine Corps Base Camp Pendleton is in the district. In the 2016 election, Darrell Issa won by a margin of less than 1%. In the 2018 election, this district was considered to  be a major battleground. Rep. Issa announced that he would not seek reelection. Following the November 6, 2018 election, Democrat Mike Levin became the district's congressman. Historical district boundaries. Before the 2002 redistricting, most of the territory currently located in the district was previously located in the 48th district. The 49th district was located farther south, encompassing most of what is now the 53rd district. Before the 2012 redistricting the district extended further inland to include a portion of southern Riverside County and most of northern San Diego County.