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US ZIP Code Profile

ZIP Code 91104
Pasadena, California

ZIP code 91104 is in Pasadena, located in Los Angeles County, California, within the Los Angeles-Long Beach-Anaheim metro area. Its 2020 Census population was 34,707. The estimated median adjusted gross income per tax return is $60,262, and about 13% of filers report $200,000 or more.

2020 Population
34,707
Census ZCTA
County
Los Angeles
FIPS 06037
Median income (est.)
$60,262
IRS SOI 2022
Land Area
3.806 mi²
+ 0.005 mi² water

01Location & Geography

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

Primary CityPasadena, 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
Coordinates34.165356, -118.12375
Land / Water Area3.806 mi² land · 0.005 mi² water

02Income & Economics

Distribution of the 16,240 individual tax returns filed in 91104 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
23.9%
$25K–$50K
20.3%
$50K–$75K
14.1%
$75K–$100K
9.8%
$100K–$200K
18.6%
$200K+
13.2%
The $200,000+ bracket accounts for 48% of 91104's total adjusted gross income, from 13% of returns — a concentration that drives the gap between the median ($60,262) 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 91104's IRS income metrics, 2020–2022.

Median income (2021→2022)
$60,262
▲ 8.6%
Filers earning $200K+
13.2%
▲ 0.9 pt
Total filers
16,240
▼ 1.7%
GET /zipc/v2/zipcodes/91104/soi?year=… $49K 2020 $55K 2021 $60K 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 91104 ZCTA.

2000
38,449
 
2010
36,751
▼ -4.4%
2020
34,707
▼ -5.6%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 91104. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 91104

Pasadena and its immediate neighbors, sorted by distance.

3 mi
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Distance from 91104 to any ZIP

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06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortB
USPS Finance Number055862
City AliasesPasadena

07Frequently Asked Questions

What county is ZIP code 91104 in?

ZIP code 91104 is in Los Angeles County, California (county FIPS code 06037).

What city is ZIP code 91104?

The primary USPS city for 91104 is Pasadena, CA.

What metro area (MSA) is 91104 in?

91104 is part of the Los Angeles-Long Beach-Anaheim, CA Metro Area (MSA code 31080).

What is the population of ZIP code 91104?

The 2020 Census population of 91104 was 34,707 residents.

What is the median income in ZIP code 91104?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 91104 is about $60,262, 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.