ZIP code · San Mateo · California · United States
ZIP code 94497 — San Mateo
ZIP code 94497 serves San Mateo, California.
- Postal code
- 94497Single source Value from one source, not cross-checked.
- City
- San Mateo
- County
- San Mateo
- State
- California
- Country
- United States
- Coordinates
- 37.5347, -122.3259 — precision precise (locality)
View on OpenStreetMap - USDA hardiness zone
- 10a (30 to 35 °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 code
- 650Telephone 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 94497 with another ZIP · ZIPs within 25 miles · distance from 94497
Climate — monthly normals
Warmest month Jul (avg high 81°F), coldest Dec (avg low 40°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 59 | 62 | 65 | 69 | 73 | 79 | 81 | 81 | 79 | 75 | 65 | 59 |
| Avg low °F | 41 | 43 | 45 | 47 | 50 | 54 | 57 | 57 | 54 | 50 | 44 | 40 |
| Precip in | 3.8 | 3.6 | 3.0 | 1.1 | 0.5 | 0.2 | 0.0 | 0.0 | 0.1 | 0.9 | 1.9 | 3.9 |
NOAA 1991–2020 climate normals from the nearest station: REDWOOD CITY (6.2 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