ZIP code · Napa · California · United States
ZIP code 94558 — Napa
ZIP code 94558 serves Napa, California.
- Postal code
- 94558Single source Value from one source, not cross-checked.
- City
- Napa
- County
- Napa FIPS 06055
- State
- California
- Country
- United States
- Coordinates
- 38.4549, -122.2564 — precision precise (locality)
View on OpenStreetMap - Population
- 64,552 (ZCTA, ACS 5-year)
- Population density
- 161 / sq mi
- Land area
- 399.9 sq mi (1,035.6 km²) (ZCTA, ACS 5-year)
- Median household income
- $109,444
- Per-capita income
- $57,993
- Median age
- 44.5
- Households
- 24,501
- Housing units
- 27,402
- Median home value
- $855,600
- Median gross rent
- $2,248 / month
- Congressional district
- 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)
Tools: compare 94558 with another ZIP · ZIPs within 25 miles · distance from 94558
Map of ZIP code 94558
Climate — monthly normals
Warmest month Jul (avg high 95°F), coldest Jan (avg low 36°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 57 | 61 | 66 | 71 | 79 | 88 | 95 | 94 | 90 | 79 | 66 | 58 |
| Avg low °F | 36 | 38 | 40 | 43 | 49 | 54 | 57 | 56 | 53 | 47 | 41 | 36 |
| Precip in | 5.7 | 5.9 | 4.1 | 1.7 | 1.0 | 0.2 | 0.0 | 0.0 | 0.1 | 1.1 | 2.5 | 5.6 |
NOAA 1991–2020 climate normals from the nearest station: MARKLEY COVE (7.6 mi) · NOAA NCEI
Places in ZIP 94558
- 31 schools
- 1 colleges & universities
- 9 hospitals & clinics
- 7 doctors & dentists
- 7 pharmacies
- 8 supermarkets
- 54 restaurants & cafés
- 3 bars & pubs
- 44 parks
- 46 playgrounds
- 11 gyms & sports centres
- 1 libraries
- 5 post offices
- 17 places of worship
- 14 banks
- 16 gas stations
- 11 EV charging stations
- 16 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