In-N-Out Burger has announced that it is opening 4 new locations in California, including its first-ever locations in Sylmar and Carson. ABC 7 is reporting that 540 North Euclid Street will be the fourth location for Anaheim. The second Oxnard facility will be located at 1700 East Ventura Blvd. It’s the first one for Sylmar and Carson. The addresses for the Carson and Sylmar locations are 20512 Avalon Blvd. and 13864 Foothill Blvd., respectively.