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US ZIP Code Profile

ZIP Code 90404
Santa Monica, California

ZIP code 90404 is in Santa Monica, located in Los Angeles County, California, within the Los Angeles-Long Beach-Anaheim metro area. Its 2020 Census population was 21,995. The estimated median adjusted gross income per tax return is $65,964, and about 13% of filers report $200,000 or more.

2020 Population
21,995
Census ZCTA
County
Los Angeles
FIPS 06037
Median income (est.)
$65,964
IRS SOI 2022
Land Area
1.993 mi²
+ 0 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CitySanta Monica, CA
CountyLos Angeles County (FIPS 06037)
StateCalifornia (FIPS 06)
Metro Area (MSA)Los Angeles-Long Beach-Anaheim, CA Metro Area (31080)
Census Region / DivisionWest Region · Pacific Division
Coordinates34.026608, -118.47364
Land / Water Area1.993 mi² land · 0 mi² water

02Income & Economics

Distribution of the 10,980 individual tax returns filed in 90404 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
22.6%
$25K–$50K
17.8%
$50K–$75K
15.1%
$75K–$100K
11.0%
$100K–$200K
20.6%
$200K+
12.9%
The $200,000+ bracket accounts for 54% of 90404's total adjusted gross income, from 13% of returns — a concentration that drives the gap between the median ($65,964) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 90404's IRS income metrics, 2020–2022.

Median income (2021→2022)
$65,964
▲ 9.1%
Filers earning $200K+
12.9%
▲ 1.0 pt
Total filers
10,980
▲ 1.0%
GET /zipc/v2/zipcodes/90404/soi?year=… $53K 2020 $60K 2021 $66K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 90404 ZCTA.

2000
19,956
 
2010
21,360
▲ +7.0%
2020
21,995
▲ +3.0%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 90404. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 90404

Santa Monica and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 90404 to any ZIP

Enter a 5-digit ZIP to calculate the distance.

06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortB
USPS Finance Number056978
City AliasesSanta Monica

07Frequently Asked Questions

What county is ZIP code 90404 in?

ZIP code 90404 is in Los Angeles County, California (county FIPS code 06037).

What city is ZIP code 90404?

The primary USPS city for 90404 is Santa Monica, CA.

What metro area (MSA) is 90404 in?

90404 is part of the Los Angeles-Long Beach-Anaheim, CA Metro Area (MSA code 31080).

What is the population of ZIP code 90404?

The 2020 Census population of 90404 was 21,995 residents.

What is the median income in ZIP code 90404?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 90404 is about $65,964, with around 13% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.