Residential delivery area · California
ZIP Code 90403: Santa Monica, CA
ZIP code 90403 is in Santa Monica, California, entirely in Los Angeles County (Census 2020 ZIP-county file). About 24,000 people live there (Census Bureau, ACS 2020-2024), the 2nd most populous of Santa Monica's 5 residential ZIP codes. Median household income is $121,925 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2021
- ZBP2023
- IRS2022
- Town
- Santa Monica · 5 residential ZIPs
- County
- Los Angeles County
- Census places
- Santa Monica
- Metro area
- Los Angeles-Long Beach-Anaheim, CA
- House district
- CA-36 119th Congress
- State
- California
- Time zone
- Pacific
- Land area
- 1.4 sq mi · 16,903 people per sq mi
Where is ZIP code 90403?
90403 centers on 34.031°, -118.492° and covers 1.4 square miles of land plus 0.1 of water. It borders 5 ZIP codes: 90402, 90401, 90404, 90025, 90049.
The map draws ZIP code areas only. For the streets inside 90403, 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 90403 compare with the rest of Santa Monica?
| Measure | 90403 | In Santa Monica | In Los Angeles County | In CA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 23,867 | 2nd of 5 | 204th of 301 | 745th of 1,802 |
| Median household income | $122k | 1st of 4 | 55th of 265 | 340th of 1,189 |
| Median home value | $1.55M | 3rd of 5 | 34th of 273 | 130th of 1,317 |
Its median household income is higher than in 91% of U.S. residential ZIP codes, and it is denser than 99% 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 90403?
The 2020 Census counted 25,278 people in 90403; the ACS, which samples households over 2020-2024, estimates 23,867. Between the 2010 and 2020 censuses its population grew 3.1% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 23,867
- 2020 Census count
- 25,278+3.1% since 2010 (24,525)
- Households
- 13,165
- Median age
- 44.2
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 90403?
Of the 23,867 people the ACS estimates in 90403, 12.1% are under 18 and 20.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (66.3%), then Hispanic or Latino (11.5%).
- Under 1812.1%
- 18 to 6467.6%
- 65 and older20.3%
- White, not Hispanic66.3%
- Hispanic or Latino11.5%
- Asian, not Hispanic11.2%
- Other or two or more8.2%
- Black, not Hispanic2.7%
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 90403 earn?
Median household income is $121,925 (ACS 2020-2024), the 55th highest of the 265 ranked ZIP codes in Los Angeles County. It is not measurably different from 2015-2019 ($131,803 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $121,925±$15,573
- Income per person
- $96,523
- Below the poverty line
- 11.3%
- Unemployed (of the labor force)
- 7.2%
- Adults 25+ with a bachelor's degree
- 75.7%
- Adjusted gross income per tax return, 2022
- $196,36313,490 returns; wages 64% 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 90403?
- Median home value (owners' estimate)
- $1,548,900
- Median gross rent
- $2,463
- Homes owned by their occupants
- 26.2%
- Housing units
- 14,977
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 90403?
1,583 business establishments had a location in this ZIP code in 2023, 109 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services305
- Health care and social assistance291
- Arts, entertainment, and recreation181
- Real estate and rental and leasing139
- Other services (except public administration)130
- Retail trade127
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 90403?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 90402 | Santa Monica | 11,337 | $159k | 0.7 mi |
| 90401 | Santa Monica | 8,101 | $110k | 1.0 mi |
| 90404 | Santa Monica | 22,978 | $95k | 1.1 mi |
| 90025 | Los Angeles | 46,508 | $104k | 2.8 mi |
| 90049 | Los Angeles | 37,122 | $171k | 4.3 mi |
| 90405 | Santa Monica | 27,298 | $121k | 1.8 mi (near) |
| 90073 | Los Angeles | 1,079 | – | 2.6 mi (near) |
| 90291 | Venice | 26,324 | $123k | 3.0 mi (near) |
| 90064 | Los Angeles | 26,642 | $135k | 3.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.