Residential delivery area · California
ZIP Code 91377: Oak Park, CA
ZIP code 91377 is in Oak Park, California, entirely in Ventura County (Census 2020 ZIP-county file). About 14,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $163,085 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Oak Park · its only residential ZIP
- County
- Ventura County
- Census places
- Oak Park census-designated place
- Metro area
- Oxnard-Thousand Oaks-Ventura, CA
- House district
- CA-26 119th Congress
- State
- California
- Time zone
- Pacific
- Land area
- 5.4 sq mi · 2,550 people per sq mi
Where is ZIP code 91377?
91377 centers on 34.185°, -118.767° and covers 5.4 square miles of land. It borders 2 ZIP codes: 91362, 91301.
The map draws ZIP code areas only. For the streets inside 91377, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 91377 compare with the rest of Ventura County?
| Measure | 91377 | In Ventura County | In CA |
|---|---|---|---|
| People (ACS 2020-2024) | 13,757 | 26th of 34 | 931st of 1,802 |
| Median household income | $163k | 2nd of 29 | 119th of 1,189 |
| Median home value | $1.04M | 5th of 30 | 336th of 1,317 |
Its median household income is higher than in 97% of U.S. residential ZIP codes, and it is denser than 87% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 91377?
The 2020 Census counted 13,898 people in 91377; the ACS, which samples households over 2020-2024, estimates 13,757. Between the 2010 and 2020 censuses its population grew 0.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 13,757
- 2020 Census count
- 13,898+0.6% since 2010 (13,811)
- Households
- 5,099
- Median age
- 43.0
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 91377?
Of the 13,757 people the ACS estimates in 91377, 25.1% are under 18 and 15.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (69.1%), then Asian (not Hispanic) (17.4%).
- Under 1825.1%
- 18 to 6459.0%
- 65 and older15.9%
- White, not Hispanic69.1%
- Asian, not Hispanic17.4%
- Hispanic or Latino7.9%
- Other or two or more5.2%
- Black, not Hispanic0.3%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 91377 earn?
Median household income is $163,085 (ACS 2020-2024), the 2nd highest of the 29 ranked ZIP codes in Ventura County. It is not measurably different from 2015-2019 ($162,672 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $163,085
- Income per person
- $77,528
- Below the poverty line
- 4.2%
- Unemployed (of the labor force)
- 7.0%
- Adults 25+ with a bachelor's degree
- 63.0%
- Adjusted gross income per tax return, 2022
- $169,9966,620 returns; wages 68% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 91377?
FHFA's house price index for 91377, built from repeat sales and appraisals of the same homes, rose 66% from 2015 to 2025 and rose 39% from 2020 to 2025, and moved −0.2% in 2025.
- Median home value (owners' estimate)
- $1,036,900
- Median gross rent
- $3,149
- Homes owned by their occupants
- 71.9%
- Housing units
- 5,354
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 91377?
306 business establishments had a location in this ZIP code in 2023, 76 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services90
- Arts, entertainment, and recreation31
- Real estate and rental and leasing30
- Construction28
- Health care and social assistance23
- Finance and insurance20
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 91377?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 91362 | Thousand Oaks | 35,996 | $140k | 3.1 mi |
| 91301 | Agoura Hills | 23,879 | $163k | 4.3 mi |
| 93065 | Simi Valley | 73,534 | $121k | 5.4 mi (near) |
| 93064 | Brandeis | 0 | – | 5.7 mi (near) |
| 91307 | West Hills | 26,580 | $151k | 5.9 mi (near) |
| 91360 | Thousand Oaks | 42,236 | $119k | 6.5 mi (near) |
| 91302 | Calabasas | 25,569 | $186k | 7.0 mi (near) |
| 91361 | Westlake Village | 18,802 | $145k | 7.4 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.