ZIP code · Oakley · California · United States
ZIP code 94561 — Oakley
ZIP code 94561 serves Oakley, California.
- Postal code
- 94561Single source Value from one source, not cross-checked.
- City
- Oakley
- County
- Contra Costa FIPS 06013
- State
- California
- Country
- United States
- Coordinates
- 37.9940, -121.7036 — precision precise (locality)
View on OpenStreetMap - Population
- 45,386 (ZCTA, ACS 5-year)
- Population density
- 2,617 / sq mi
- Land area
- 17.3 sq mi (44.9 km²) (ZCTA, ACS 5-year)
- Median household income
- $130,859
- Per-capita income
- $43,728
- Median age
- 36.2
- Households
- 13,903
- Housing units
- 14,251
- Median home value
- $632,100
- Median gross rent
- $1,982 / month
- Congressional district
- CA-10 (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
- 925 (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 94561 with another ZIP · ZIPs within 25 miles · distance from 94561
Map of ZIP code 94561
Climate — monthly normals
Warmest month Jul (avg high 91°F), coldest Jan (avg low 40°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 56 | 61 | 67 | 72 | 79 | 86 | 91 | 90 | 87 | 78 | 65 | 56 |
| Avg low °F | 40 | 44 | 47 | 50 | 54 | 59 | 61 | 60 | 59 | 54 | 46 | 40 |
| Precip in | 2.7 | 2.4 | 1.9 | 0.9 | 0.4 | 0.1 | 0.0 | 0.0 | 0.1 | 0.4 | 1.2 | 2.5 |
NOAA 1991–2020 climate normals from the nearest station: ANTIOCH PUMPING PLT #3 (2.7 mi) · NOAA NCEI
Places in ZIP 94561
- 14 schools
- 2 doctors & dentists
- 1 supermarkets
- 18 restaurants & cafés
- 1 bars & pubs
- 42 parks
- 43 playgrounds
- 3 gyms & sports centres
- 2 libraries
- 1 post offices
- 10 places of worship
- 3 banks
- 11 gas stations
- 3 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