Residential delivery area · California
ZIP Code 92821: Brea, CA
ZIP code 92821 is in Brea, California, entirely in Orange County (Census 2020 ZIP-county file). About 42,000 people live there (Census Bureau, ACS 2020-2024), the more populous of Brea's 2 residential ZIP codes. Median household income is $123,629 (Census Bureau, ACS 2020-2024). By Census place, 63% of its land lies in Brea; 36% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Brea · 2 residential ZIPs
- County
- Orange County
- Census places
- Brea
- Metro area
- Los Angeles-Long Beach-Anaheim, CA
- House districts
- CA-45 (55%), CA-40 (45%) 119th Congress, by share of land
- State
- California
- Time zone
- Pacific
- Land area
- 14.1 sq mi · 2,945 people per sq mi
- PO Box ZIPs
- 92822 also use the name Brea
Where is ZIP code 92821?
92821 centers on 33.932°, -117.855° and covers 14.1 square miles of land plus 0.0 of water. It borders 7 ZIP codes: 92823, 92870, 92835, 91748, 91765, 90631, 91709.
The map draws ZIP code areas only. For the streets inside 92821, 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 92821 compare with the rest of Brea?
| Measure | 92821 | In Brea | In Orange County | In CA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 41,623 | 1st of 2 | 36th of 90 | 357th of 1,802 |
| Median household income | $124k | 2nd of 2 | 45th of 82 | 320th of 1,189 |
| Median home value | $903k | 2nd of 2 | 54th of 85 | 431st of 1,317 |
Its median household income is higher than in 92% of U.S. residential ZIP codes, and it is denser than 88% 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 92821?
The 2020 Census counted 41,335 people in 92821; the ACS, which samples households over 2020-2024, estimates 41,623. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 41,623
- 2020 Census count
- 41,335
- Households
- 14,705
- Median age
- 39.8
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 92821?
Of the 41,623 people the ACS estimates in 92821, 22.9% are under 18 and 17.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (35.9%), then Hispanic or Latino (31.5%).
- Under 1822.9%
- 18 to 6459.6%
- 65 and older17.5%
- White, not Hispanic35.9%
- Hispanic or Latino31.5%
- Asian, not Hispanic25.7%
- Other or two or more5.4%
- Black, not Hispanic1.5%
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 92821 earn?
Median household income is $123,629 (ACS 2020-2024), the 45th highest of the 82 ranked ZIP codes in Orange County.
- Median household income
- $123,629
- Income per person
- $55,860
- Below the poverty line
- 6.2%
- Unemployed (of the labor force)
- 5.4%
- Adults 25+ with a bachelor's degree
- 50.5%
- Adjusted gross income per tax return, 2022
- $109,06119,900 returns; wages 69% 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 92821?
FHFA's house price index for 92821, built from repeat sales and appraisals of the same homes, rose 77% from 2015 to 2025 and rose 46% from 2020 to 2025, and moved −2.4% in 2025.
- Median home value (owners' estimate)
- $903,200
- Median gross rent
- $2,348
- Homes owned by their occupants
- 57.5%
- Housing units
- 15,134
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 92821?
2,393 business establishments had a location in this ZIP code in 2023, 113 more than in 2018; the most are in wholesale trade (ZIP Code Business Patterns).
- Wholesale trade309
- Retail trade306
- Professional, scientific, and technical services305
- Health care and social assistance223
- Accommodation and food services186
- Finance and insurance178
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 92821?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 92823 | Brea | 5,846 | $170k | 3.4 mi |
| 92870 | Placentia | 52,826 | $116k | 3.5 mi |
| 92835 | Fullerton | 26,005 | $144k | 4.1 mi |
| 91748 | Rowland Heights | 42,463 | $83k | 4.2 mi |
| 91765 | Diamond Bar | 44,502 | $106k | 4.4 mi |
| 90631 | La Habra | 68,309 | $104k | 5.6 mi |
| 91709 | Chino Hills | 78,006 | $126k | 7.5 mi |
| 92886 | Yorba Linda | 49,704 | $153k | 4.0 mi (near) |
| 92831 | Fullerton | 35,618 | $89k | 4.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.