🇺🇸 United States ZIP Code

STANDARD

91381

Stevenson Ranch

ZIP Code 91381 is a standard zip code serving Stevenson Ranch, Stevenson Ranch, California (CA), in Los Angeles County, United States. It has an estimated population of 20,158 with a median household income of $116,420. The area falls within the America/Los_Angeles timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: California (CA)
County: Los Angeles
City: Stevenson Ranch
Timezone: America/Los_Angeles

Coordinates

Latitude: 34.377500
Longitude: -118.613100

Geographic Details

Land Area: 37.63 mi²
Water Area: 0.04 mi²
Population Density: 536.0 people per mi² (70th percentile)
Bounding Box: 34.432835°N, 34.319351°S, -118.539755°E, -118.692900°W

With 20,158 residents spread across 37.63 square miles, this area has a population density of 536.0 people per square mile.

Demographics

20,158

Population

80th percentile

$116,420

Median Income

95th percentile

$585,900

Median Home Value

95th percentile

37.63 mi²

Land Area

The median household income in 91381 is $116,420, and the median home value is $585,900. This places the area in the top 25% nationally for household income.

Housing

6,848

Total Units

6,636

Occupied Units

96.9%

Occupancy Rate

Similar ZIP Codes in California

ZIP codes with similar median household income in California.

94904

Greenbrae

$102,538

94019

Half Moon Bay

$100,394

94107

San Francisco

$114,439

92694

Ladera Ranch

$127,906

90210

Beverly Hills

$132,254

94020

La Honda

$99,716

94304

Palo Alto

$103,971

91302

Calabasas

$129,708

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.