ZIP code · San Ysidro · California · United States

ZIP code 92143 — San Ysidro

ZIP code 92143 serves San Ysidro, California.

Postal code: 92143
Single source Value from one source, not cross-checked.
City: San Ysidro
County: San Diego
State: California
Country: United States
Coordinates: 33.2553, -116.5664 — precision precise (locality)
View on OpenStreetMap
USDA hardiness zone: 10b (35 to 40 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone: America/Los_Angeles (UTC−8 / UTC−7 DST)
Area codes: 760, 442 (from the nearest rate centre)
Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

Tools: compare 92143 with another ZIP · ZIPs within 25 miles · distance from 92143

Climate — monthly normals

Warmest month Jul (avg high 107°F), coldest Dec (avg low 45°F).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high °F	70	72	79	85	93	103	107	107	101	90	78	69
Avg low °F	46	47	52	56	62	70	77	78	72	62	52	45
Precip in	1.2	1.2	0.6	0.2	0.1	0.0	0.3	0.3	0.1	0.2	0.2	0.8

NOAA 1991–2020 climate normals from the nearest station: BORREGO DESERT PARK (9.4 mi) · NOAA NCEI

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page