Annual rainfall is 13.26 inches. The population of Santa Ana was 306,961 in 1998. It is the largest city in Orange County and the County Seat, and the ninth largest city in California by population. 800 Phillips Road Bldg. 1501 Fifth Ave.
Orange County is one of the smallest in size, yet most densely populated counties in California.
Rankings are comprised of large metropolitan cities with 200,000 or more population.