San Diego County stands as the second most populous county in California, behind Los Angeles County. Interestingly enough it is the sixth most populous county in the United States while also having the smallest area-wise county in Southern California. Tourists from all over the U.S. and world flock to San Diego for such attractions a Sea World, Comic-Con and some of the best, most consistent surf on the West Coast. San Diego as well as nearby Los Angeles County in recent years have seen a drastic need for water conservation. California’s population now exceeds 38 million people! You could save thousands of gallons of water annually just by having synthetic grass in San Diego.