San Ysidro, CA ZIP codes

San Ysidro, California has 2 ZIP codes, including 1 PO Box ZIP. They are in San Diego County.

Population in these ZIPs: 27,585
Avg. median income: $69,800population-weighted
Typical home value: $682,100population-weighted
Metro area: San Diego-Chula Vista-Carlsbad, CA

Loading map…

Click anywhere on the map to see which ZIP code it's in.

San Ysidro, CA ZIP codes list

San Ysidro, CA ZIP codes
ZIP code	County	Population	Median income	Typical home value
92143 PO Box	San Diego County	—	—	—
92173	San Diego County	27,585	$69,792	$682,100

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Cities near San Ysidro

Lakeside 5 mi
Alpine 7 mi
Ramona 9 mi
El Cajon 10 mi
Descanso 10 mi
Santee 11 mi
Poway 13 mi
Guatay 14 mi
Jamul 15 mi
La Mesa 15 mi
Spring Valley 16 mi
Pine Valley 17 mi

Frequently asked questions

What is the ZIP code for San Ysidro, CA?

San Ysidro, CA has 2 ZIP codes: 92143 and 92173.

What county is San Ysidro, California in?

San Ysidro ZIP codes are in San Diego County.

Which San Ysidro ZIP codes are PO Boxes?

92143 is a PO Box or single-organization ZIP code; it has no residential delivery area.