There are 124 Building Supply Stores in San Diego County, California, serving a population of 3,283,665 people in an area of 4,206 square miles. There is 1 Building Supply Store per 26,481 people, and 1 Building Supply Store per 33 square miles.
In California, San Diego County is ranked 20th of 58 counties in Building Supply Stores per capita, and 10th of 58 counties in Building Supply Stores per square mile.