Rancho Santa Margarita, CA is a city located in Orange County, California and has a land area of 13.22 square miles (34.24 km2). The water area for the city is 0.02 square miles or 0.05 km2. There is one unique zip code in Rancho Santa Margarita, California and it is 92688. The area code(s) for Rancho Santa Margarita is 949.
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