ZIP code · Mount Hamilton · California · United States
ZIP code 95140 — Mount Hamilton
ZIP code 95140 serves Mount Hamilton, California.
- Postal code
- 95140Single source Value from one source, not cross-checked.
- City
- Mount Hamilton
- County
- Santa Clara FIPS 06085
- State
- California
- Country
- United States
- Coordinates
- 37.3511, -121.6384 — precision estimated (postal-area centroid)
View on OpenStreetMap - Population
- 41 (ZCTA, ACS 5-year)
- Population density
- 1 / sq mi
- Land area
- 76.8 sq mi (199 km²) (ZCTA, ACS 5-year)
- Per-capita income
- $184,127
- Median age
- 62.3
- Households
- 32
- Housing units
- 66
- Median home value
- $2,000,000+
- Congressional district
- CA-18 (119th Congress)
- USDA hardiness zone
- 9b (25 to 30 °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
- 209Telephone 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 95140 with another ZIP · ZIPs within 25 miles · distance from 95140
Map of ZIP code 95140
Climate — monthly normals
Warmest month Jul (avg high 79°F), coldest Feb (avg low 38°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 50 | 49 | 51 | 55 | 62 | 71 | 79 | 79 | 75 | 66 | 55 | 49 |
| Avg low °F | 39 | 38 | 39 | 41 | 47 | 56 | 65 | 65 | 60 | 52 | 43 | 38 |
| Precip in | 5.0 | 4.8 | 4.4 | 2.2 | 1.3 | 0.3 | 0.0 | 0.1 | 0.2 | 1.3 | 3.0 | 4.7 |
NOAA 1991–2020 climate normals from the nearest station: MT HAMILTON (0.6 mi) · NOAA NCEI
Places in ZIP 95140
- 1 restaurants & cafés
- 1 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
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 · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page