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US ZIP Code Profile

ZIP Code 91306
Winnetka, California

ZIP code 91306 is in Winnetka, located in Los Angeles County, California, within the Los Angeles-Long Beach-Anaheim metro area. Its 2020 Census population was 46,669. The estimated median adjusted gross income per tax return is $43,750, and about 4% of filers report $200,000 or more.

2020 Population
46,669
Census ZCTA
County
Los Angeles
FIPS 06037
Median income (est.)
$43,750
IRS SOI 2022
Land Area
4.138 mi²
+ 0.024 mi² water

01Location & Geography

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

Primary CityWinnetka, 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
Coordinates34.209534, -118.57756
Land / Water Area4.138 mi² land · 0.024 mi² water

02Income & Economics

Distribution of the 22,060 individual tax returns filed in 91306 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
30.7%
$25K–$50K
25.8%
$50K–$75K
15.7%
$75K–$100K
9.3%
$100K–$200K
14.5%
$200K+
4.0%
The $200,000+ bracket accounts for 19% of 91306's total adjusted gross income, from 4% of returns — a concentration that drives the gap between the median ($43,750) 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 91306's IRS income metrics, 2020–2022.

Median income (2021→2022)
$43,750
▲ 4.8%
Filers earning $200K+
4.0%
▲ 0.5 pt
Total filers
22,060
▼ 2.3%
GET /zipc/v2/zipcodes/91306/soi?year=… $38K 2020 $42K 2021 $44K 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 91306 ZCTA.

2000
43,846
 
2010
45,061
▲ +2.8%
2020
46,669
▲ +3.6%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 91306. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 91306

Winnetka and its immediate neighbors, sorted by distance.

3 mi
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Distance from 91306 to any ZIP

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06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypeBranch
Carrier Route SortB
USPS Finance Number051242
City AliasesCanoga Park, Winnetka

07Frequently Asked Questions

What county is ZIP code 91306 in?

ZIP code 91306 is in Los Angeles County, California (county FIPS code 06037).

What city is ZIP code 91306?

The primary USPS city for 91306 is Winnetka, CA.

What metro area (MSA) is 91306 in?

91306 is part of the Los Angeles-Long Beach-Anaheim, CA Metro Area (MSA code 31080).

What is the population of ZIP code 91306?

The 2020 Census population of 91306 was 46,669 residents.

What is the median income in ZIP code 91306?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 91306 is about $43,750, with around 4% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.