Chula Vista, CA

ZIP code 91912 is located in the city of San Ysidro, California. This area is known for being home to the San Ysidro Port of Entry, one of the busiest land border crossings in the world. The zip code also includes Las Americas Premium Outlets, a popular shopping destination for locals and tourists alike. Other notable landmarks in the area include the Tijuana River National Estuarine Research Reserve and the San Ysidro High School.