San Diego County, officially the County of San Diego, is a county in the southwest corner of the U.S. state of California, north to its border with Mexico. As of the 2020 census, the population was 3,298,634; it is the second-most populous county in California and the fifth-most populous in the United States. Its county seat is San Diego, the second-most pop…
San Diego County, officially the County of San Diego, is a county in the southwest corner of the U.S. state of California, north to its border with Mexico. As of the 2020 census, the population was 3,298,634; it is the second-most populous county in California and the fifth-most populous in the United States. Its county seat is San Diego, the second-most populous city in California and the eighth-most populous in the United States. It is the southwesternmost county in the 48 contiguous United States, and is a border county. It is home to 18 Indian reservations, the most of any county in the United States. There are 16 military installations of the U.S. Navy, Marine Corps, and Coast Guard in the county.
AdIf It's Worth Doing, We've Got It. Find the Best Tours and Activities for Your Trip. Spend Your Trip Making Memories, Not Missing Out While You're Waiting in Line.
Established in 2009 · Thousands of destinations · Multiple languages · 3 million trusted reviews
AdBook Your SanDiego Tours Online. Find the Best Deals for 5-Star Rated Tours & Activities. Experience The Best of SanDiego. Discover California. Order Now!