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US ZIP Code Profile

ZIP Code 90401
Santa Monica, California

ZIP code 90401 is in Santa Monica, located in Los Angeles County, California, within the Los Angeles-Long Beach-Anaheim metro area. Its 2020 Census population was 8,167. The estimated median adjusted gross income per tax return is $82,778, and about 20% of filers report $200,000 or more.

2020 Population
8,167
Census ZCTA
County
Los Angeles
FIPS 06037
Median income (est.)
$82,778
IRS SOI 2022
Land Area
0.849 mi²
+ 0.17 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
Coordinates34.013664, -118.49375
Land / Water Area0.849 mi² land · 0.17 mi² water

02Income & Economics

Distribution of the 4,540 individual tax returns filed in 90401 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
20.9%
$25K–$50K
13.9%
$50K–$75K
12.1%
$75K–$100K
9.9%
$100K–$200K
23.4%
$200K+
19.8%
The $200,000+ bracket accounts for 79% of 90401's total adjusted gross income, from 20% of returns — a concentration that drives the gap between the median ($82,778) 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 90401's IRS income metrics, 2020–2022.

Median income (2021→2022)
$82,778
▲ 11.6%
Filers earning $200K+
19.8%
▲ 1.6 pt
Total filers
4,540
▼ 1.3%
GET /zipc/v2/zipcodes/90401/soi?year=… $65K 2020 $74K 2021 $83K 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 90401 ZCTA.

2000
5,201
 
2010
6,722
▲ +29.2%
2020
8,167
▲ +21.5%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 90401. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 90401

Santa Monica and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 90401 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 90401 in?

ZIP code 90401 is in Los Angeles County, California (county FIPS code 06037).

What city is ZIP code 90401?

The primary USPS city for 90401 is Santa Monica, CA.

What metro area (MSA) is 90401 in?

90401 is part of the Los Angeles-Long Beach-Anaheim, CA Metro Area (MSA code 31080).

What is the population of ZIP code 90401?

The 2020 Census population of 90401 was 8,167 residents.

What is the median income in ZIP code 90401?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 90401 is about $82,778, with around 20% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.