ZIP code · Oak Park · California · United States
ZIP code 91377 — Oak Park
ZIP code 91377 serves Oak Park, California.
- Postal code
- 91377Single source Value from one source, not cross-checked.
- City
- Oak Park
- County
- Ventura FIPS 06111
- State
- California
- Country
- United States
- Coordinates
- 34.1850, -118.7669 — precision precise (locality)
View on OpenStreetMap - Population
- 13,656 (ZCTA, ACS 5-year)
- Population density
- 2,532 / sq mi
- Land area
- 5.4 sq mi (14 km²) (ZCTA, ACS 5-year)
- Median household income
- $160,484
- Per-capita income
- $80,193
- Median age
- 41.4
- Households
- 5,006
- Housing units
- 5,239
- Median home value
- $1,017,100
- Median gross rent
- $3,150 / month
- Congressional district
- CA-26 (119th Congress)
- USDA hardiness zone
- 10b (35 to 40 °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 91377 with another ZIP · ZIPs within 25 miles · distance from 91377
Map of ZIP code 91377
Climate — monthly normals
Warmest month Aug (avg high 97°F), coldest Dec (avg low 42°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 70 | 70 | 74 | 78 | 82 | 89 | 95 | 97 | 94 | 85 | 76 | 69 |
| Avg low °F | 43 | 44 | 46 | 48 | 53 | 57 | 61 | 61 | 59 | 53 | 46 | 42 |
| Precip in | 3.7 | 4.6 | 2.7 | 0.8 | 0.4 | 0.1 | 0.0 | 0.0 | 0.1 | 0.6 | 0.8 | 2.7 |
NOAA 1991–2020 climate normals from the nearest station: WOODLAND HILLS PIERCE COLLEGE (11.0 mi) · NOAA NCEI
Places in ZIP 91377
- 8 schools
- 3 hospitals & clinics
- 3 restaurants & cafés
- 10 parks
- 9 playgrounds
- 1 libraries
- 1 banks
- 1 EV charging stations
- 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