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US ZIP Code Profile

ZIP Code 91331
Pacoima, California

ZIP code 91331 is in Pacoima, located in Los Angeles County, California, within the Los Angeles-Long Beach-Anaheim metro area. Its 2020 Census population was 100,720. The estimated median adjusted gross income per tax return is $38,346, and about 1% of filers report $200,000 or more.

2020 Population
100,720
Census ZCTA
County
Los Angeles
FIPS 06037
Median income (est.)
$38,346
IRS SOI 2022
Land Area
8.853 mi²
+ 0.046 mi² water

01Location & Geography

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

Primary CityPacoima, 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
Coordinates34.255444, -118.42131
Land / Water Area8.853 mi² land · 0.046 mi² water

02Income & Economics

Distribution of the 44,100 individual tax returns filed in 91331 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
32.3%
$25K–$50K
33.2%
$50K–$75K
17.3%
$75K–$100K
8.2%
$100K–$200K
8.2%
$200K+
0.8%
The $200,000+ bracket accounts for 5% of 91331's total adjusted gross income, from 1% of returns — a concentration that drives the gap between the median ($38,346) 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 91331's IRS income metrics, 2020–2022.

Median income (2021→2022)
$38,346
▲ 5.0%
Filers earning $200K+
0.8%
▲ 0.1 pt
Total filers
44,100
▼ 1.6%
GET /zipc/v2/zipcodes/91331/soi?year=… $34K 2020 $37K 2021 $38K 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 91331 ZCTA.

2000
97,300
 
2010
103,689
▲ +6.6%
2020
100,720
▼ -2.9%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 91331. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 91331

Pacoima and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 91331 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 Number055754
City AliasesArleta, Hansen Hills, Lakeview Terrace, Pacoima

07Frequently Asked Questions

What county is ZIP code 91331 in?

ZIP code 91331 is in Los Angeles County, California (county FIPS code 06037).

What city is ZIP code 91331?

The primary USPS city for 91331 is Pacoima, CA.

What metro area (MSA) is 91331 in?

91331 is part of the Los Angeles-Long Beach-Anaheim, CA Metro Area (MSA code 31080).

What is the population of ZIP code 91331?

The 2020 Census population of 91331 was 100,720 residents.

What is the median income in ZIP code 91331?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 91331 is about $38,346, with around 1% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.