Get API Key →
US ZIP Code Profile

ZIP Code 91010
Duarte, California

ZIP code 91010 is in Duarte, located in Los Angeles County, California, within the Los Angeles-Long Beach-Anaheim metro area. Its 2020 Census population was 26,730. The estimated median adjusted gross income per tax return is $49,096, and about 5% of filers report $200,000 or more.

2020 Population
26,730
Census ZCTA
County
Los Angeles
FIPS 06037
Median income (est.)
$49,096
IRS SOI 2022
Land Area
7.04 mi²
+ 0.044 mi² water

01Location & Geography

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

Primary CityDuarte, 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
Coordinates34.141586, -117.95763
Land / Water Area7.04 mi² land · 0.044 mi² water

02Income & Economics

Distribution of the 12,590 individual tax returns filed in 91010 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
25.7%
$25K–$50K
25.3%
$50K–$75K
16.4%
$75K–$100K
10.7%
$100K–$200K
16.8%
$200K+
5.2%
The $200,000+ bracket accounts for 23% of 91010's total adjusted gross income, from 5% of returns — a concentration that drives the gap between the median ($49,096) 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 91010's IRS income metrics, 2020–2022.

Median income (2021→2022)
$49,096
▲ 5.5%
Filers earning $200K+
5.2%
▲ 0.7 pt
Total filers
12,590
▲ 0.2%
GET /zipc/v2/zipcodes/91010/soi?year=… $42K 2020 $47K 2021 $49K 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 91010 ZCTA.

2000
27,400
 
2010
26,074
▼ -4.8%
2020
26,730
▲ +2.5%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 91010. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 91010

Duarte and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 91010 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 Number052274
City AliasesDuarte

07Frequently Asked Questions

What county is ZIP code 91010 in?

ZIP code 91010 is in Los Angeles County, California (county FIPS code 06037).

What city is ZIP code 91010?

The primary USPS city for 91010 is Duarte, CA.

What metro area (MSA) is 91010 in?

91010 is part of the Los Angeles-Long Beach-Anaheim, CA Metro Area (MSA code 31080).

What is the population of ZIP code 91010?

The 2020 Census population of 91010 was 26,730 residents.

What is the median income in ZIP code 91010?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 91010 is about $49,096, with around 5% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.