San Ysidro, CA is a city located in San Diego County, California and has a land area of 2.88 square miles (7.46 km2). The water area for the city is 0.00 square miles or 0.00 km2. There are 2 total unique zip codes in San Ysidro, California. The area code(s) for San Ysidro is 619/858.
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