ZIP code · Fairfield · California · United States
ZIP code 94534 — Fairfield
ZIP code 94534 serves Fairfield, California.
- Postal code
- 94534Single source Value from one source, not cross-checked.
- City
- Fairfield
- County
- Solano FIPS 06095
- State
- California
- Country
- United States
- Coordinates
- 38.2423, -122.1314 — precision precise (locality)
View on OpenStreetMap - Population
- 41,122 (ZCTA, ACS 5-year)
- Population density
- 530 / sq mi
- Land area
- 77.5 sq mi (200.8 km²) (ZCTA, ACS 5-year)
- Median household income
- $139,349
- Per-capita income
- $58,088
- Median age
- 41.4
- Households
- 13,738
- Housing units
- 14,249
- Median home value
- $700,900
- Median gross rent
- $2,699 / month
- Congressional districts
- CA-8 (also CA-4) (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
- 951 (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 94534 with another ZIP · ZIPs within 25 miles · distance from 94534
Map of ZIP code 94534
Climate — monthly normals
Warmest month Jul (avg high 90°F), coldest Dec (avg low 40°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 57 | 62 | 66 | 71 | 78 | 85 | 90 | 89 | 87 | 78 | 66 | 57 |
| Avg low °F | 40 | 43 | 45 | 48 | 52 | 56 | 58 | 58 | 57 | 52 | 45 | 40 |
| Precip in | 4.7 | 5.0 | 3.3 | 1.5 | 0.7 | 0.2 | 0.0 | 0.0 | 0.1 | 1.1 | 2.5 | 5.4 |
NOAA 1991–2020 climate normals from the nearest station: FAIRFIELD (4.1 mi) · NOAA NCEI
Places in ZIP 94534
- 11 schools
- 1 colleges & universities
- 2 hospitals & clinics
- 3 pharmacies
- 4 supermarkets
- 46 restaurants & cafés
- 1 bars & pubs
- 22 parks
- 45 playgrounds
- 5 gyms & sports centres
- 1 libraries
- 1 post offices
- 3 places of worship
- 6 banks
- 15 gas stations
- 9 EV charging stations
- 5 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