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ZIP Code91340

San Fernando, CA

Los Angeles County · California · United States
Home to 33,750 people across 3.431 square miles.

PacificTop 5% density508 ZIPs in county

At a glance

91340 by the numbers

Every figure below comes from the 2019–2023 American Community Survey 5-Year Estimates, the Census Gazetteer, or is computed from those. Margins of error are shown where they matter.

Population
34k
±1,128 · top 10% nationally
Median household income
$79,124
US median $70,109 · 64th pctile
Median home value
$624,900
US median $207,500 · top 10%
Median age
36.4
US median 42 years
Population density
9,837/mi²
top 5% most dense
Land area
3.431 mi²
negligible water area

Location

Where 91340 is

34.28667, -118.434817 · Census ZCTA internal pointOpen larger map →
Coordinates34.28667, -118.434817
Time zoneAmerica/Los_Angeles
CountyLos Angeles County
StateCalifornia (CA)
Land area3.431 mi²
Coordinate sourceCensus ZCTA internal point

Local time

America/Los_Angeles

—:—:—

Current weather

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Distance to major cities

Straight-line, computed from coordinates

Los Angeles, CA19.5 mi
San Diego, CA131.0 mi
San Francisco, CA328.0 mi
Phoenix, AZ369.4 mi

People

Who lives in 91340

33,750 residents in 8,542 households, averaging 3.95 people per household. The largest age group is under 18 at 23.4% of residents, and 84.3% of households are families.

Age distribution

Share of residents by age band

Under 1823.4%
18-248.9%
25-3415.6%
35-4415.4%
45-5412.6%
55-6411.7%
65+12.5%

Households

Composition and size

Total households8,542
Average household size3.95
Family households84.3%
Living alone11.4%
Median age36.4 years
Households with internet91.6%

Race & ethnicity

Census race categories. Hispanic or Latino origin is asked separately and overlaps these groups.

White27.4%
Black1.9%
Asian2.2%
Native American1.8%
Other40.5%
Two or more26.2%
Hispanic / Latino91.1%

Income & work

What people earn in 91340

The median household here earns $79,124 a year, above the US median of $70,109, which puts 91340 ahead of 64% of American ZIP codes. 12.6% of residents live below the poverty line.

Compared to the US

This ZIP against the national median

Median household income$79,124
LowestHighest
Higher than 64% of all US ZIP codes.
Median household income$79,124 ±$7,559
Per capita income$28,597
Poverty rate12.6%
Unemployment rate7.2%
Labor force participation67.0%

Household income distribution

Share of households in each bracket

<$25k12.5%
$25-50k17.3%
$50-75k17.6%
$75-100k12.6%
$100-150k15.1%
$150-200k11.7%
$200k+13.3%

Educational attainment among residents 25 and older: 14.1% hold a bachelor's degree or higher, 64.4% finished high school.

Housing

Homes and rent in 91340

A typical home is valued at $624,900, and median rent runs $1,740 a month. This is an owner-majority area — 64.7% of occupied homes are owned, and the typical building went up in 1957.

Costs

Typical values

Median home value$624,900
Median gross rent$1,740/mo
Median year built1957
Housing units9,011
Vacancy rate5.2%

Own vs. rent

Of 8,542 occupied units

Owner-occupied64.7%
Renter-occupied35.3%
Owner households5,530
Renter households3,012

Building types

Units by structure size

Single family83.0%
2-4 units5.0%
5-19 units9.4%
20+ units2.6%

Getting to work

How 91340 commutes

74.9% of workers drove alone, and the average one-way trip takes 32.5 minutes.

Mode of transport

Workers 16 and older

Drove alone74.9%
Carpooled14.3%
Public transit2.5%
Walked1.2%
Bike0.1%
Worked from home5.4%

Travel time

Mean commute 32.5 minutes

<10 min8.2%
10-1924.1%
20-2917.8%
30-4426.7%
45-5911.4%
60+11.8%

Overview

Understanding ZIP code 91340

ZIP code 91340 is assigned to San Fernando, CA, and falls within Los Angeles County. Like every US postal code, it began as a mail-routing device rather than a geographic boundary — the US Postal Service groups delivery routes under a single code so carriers and sorting equipment can process mail efficiently. Today it also serves as a practical shorthand for the area itself: roughly 33,750 people live inside it.

At 9,837 residents per square mile spread over 3.431 square miles, 91340 reads as a densely built-up area. It is a populous postal code, and density shapes almost everything else on this page — how people get to work, whether they own or rent, and what housing costs.

Household earnings track close to the national picture. The median of $79,124 puts 91340 near the middle of the pack, ahead of 64% of them. The US median for comparison is $70,109. Bear in mind that median income describes the midpoint household, not the average — it is not pulled upward by a handful of very high earners the way a mean would be.

Living here

What life in San Fernando looks like

Housing in 91340 costs far above the national median. A typical home is valued at $624,900 against a US median of $207,500, and median gross rent runs $1,740 a month. The split between owning and renting is fairly even at 64.7% owner-occupied, which tends to indicate a mix of housing types rather than one dominant form.

The building stock is dominated by detached single-family houses, which account for 83.0% of housing units here. The median construction year is 1957, making the housing here mid-century.

The population skews broadly in line with the national age profile, with a median age of 36.4 against 42 nationally. Households are relatively large at 3.95 people on average, with 84.3% classified as family households.

Getting to work takes 32.5 minutes on average one way. The dominant mode is drove alone at 74.9% of workers.

Where to stay

Where to stay in San Fernando, CA

San Fernando is a built-up area, so you will generally find a mix of chain hotels near the main approach roads and a smaller number of independent properties closer to the centre. Staying in 91340 itself often costs less than an equivalent room in the nearest downtown while keeping you close to it.

Median rent in 91340 is $1,740 a month, which sits in the middle of the national range; accommodation pricing locally tends to be similarly mid-market. For reference, Los Angeles, CA is about 19.5 miles away in a straight line, which is worth factoring in if you are comparing a stay here against one closer to the city centre.

Availability and pricing change constantly, so the live search below will give you a more accurate picture than any figure we could publish here. It opens results for this area on Booking.com.

Book a Hotel →

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Practical uses

What ZIP code 91340 is used for

Beyond addressing mail, 91340 does a lot of quiet administrative work. Retailers use it to calculate shipping and sales tax at checkout. Insurers use it to set premiums, since risk profiles vary geographically. Employers and marketers use it to define service areas. Government agencies use it to route benefits and organise reporting. If you have ever been asked for a postal code by a form that clearly does not intend to send you anything, this is why.

For anyone weighing a move, 91340 offers a compact profile of San Fernando: 33,750 residents, a median household income of $79,124, 14.1% of adults holding a bachelor's degree or higher, and an unemployment rate of 7.2%. A handful of figures like these answer more relocation questions than most neighbourhood guides do.

One caution worth repeating: a postal code is not a neighbourhood. 91340 may cover parts of several distinct areas, and a single neighbourhood in San Fernando may be split across more than one code. Boundaries also shift as USPS adjusts delivery routes. Treat the figures here as describing a delivery area, which is what they actually measure.

Nearby

ZIP codes near 91340

The eight closest postal codes by centroid distance, each with its own full profile. You can also browse every California ZIP code or use the ZIP Express Lookup to search by city, county or time zone.

Other ZIP codes in San Fernando

San Fernando is served by 2 postal codes.

More in Los Angeles County

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Questions

Common questions about 91340

What city is ZIP code 91340 in?
91340 serves San Fernando, California, in Los Angeles County, United States.
What is the population of 91340?
About 33,750 people live in ZIP code 91340, according to the US Census Bureau's 2019–2023 American Community Survey 5-Year Estimates. The margin of error on that figure is ±1,128. That works out to roughly 9,837 people per square mile.
What is the average income in 91340?
The median household income in 91340 is $79,124 per year, compared with a US median of $70,109. Per capita income is $28,597. Median income is more representative than an average because it isn't skewed by a small number of very high earners.
How expensive is housing in 91340?
The median home value is $624,900 and median gross rent is $1,740 a month. 64.7% of occupied homes are owner-occupied.
Is 91340 a good place to live?
That depends on what you're looking for, but here are the facts: 14.1% of adults hold a bachelor's degree or higher, the unemployment rate is 7.2%, and the median age is 36.4. The average commute is 32.5 minutes. We publish the numbers and let you weigh them.
What time zone is 91340 in?
91340 observes Pacific Time (America/Los_Angeles). This zone observes daylight saving time.
How big is ZIP code 91340?
ZIP code 91340 covers 3.431 square miles of land, per the US Census Bureau's 2023 Gazetteer files.
Is 91340 urban, suburban or rural?
By population density, 91340 reads as a densely built-up area. It holds 9,837 people per square mile across 3.431 square miles of land. For reference, densities above 10,000 per square mile generally indicate an urban core, 1,000–3,000 is typically suburban, and under 200 is rural. These are rules of thumb rather than official designations — the Census Bureau classifies urban and rural areas by census block, not by ZIP code.
How much is rent in 91340?
Median gross rent in 91340 is $1,740 a month, according to the American Community Survey. Gross rent includes contract rent plus the estimated cost of utilities and fuels, so it is closer to what a tenant actually pays than a headline rent figure. Of 8,542 occupied homes here, 3,012 are rented.
What is the commute like from 91340?
The average one-way commute from 91340 takes about 32.5 minutes. The most common way to travel is drove alone, used by 74.9% of workers aged 16 and over. Commute figures cover people who were employed and working outside the home during the survey period.
How many people work in 91340?
About 16,497 residents of 91340 are employed. Labor force participation stands at 67.0% and the unemployment rate is 7.2%. Note this counts residents by where they live, not by where they work — a ZIP with many offices can have far more jobs than employed residents.
Where should I stay when visiting 91340?
Accommodation in and around San Fernando, CA ranges with the character of the area. See the 'Where to stay' section on this page for local context, and use the live search there for current availability and pricing.
Does 91340 cover more than one city or county?
This page lists San Fernando as the primary place and Los Angeles County as the county. ZIP codes follow mail delivery routes rather than municipal or county lines, so a single code can straddle boundaries, and USPS also recognises alternate acceptable city names for many codes. If you need the definitive answer for a specific street address, the USPS ZIP Code Lookup is the authority.
Can ZIP code 91340 change?
Yes. USPS adjusts ZIP codes as delivery volumes shift — codes are occasionally split, merged, retired or newly created, and boundaries move more often than most people assume. The Census Bureau's ZCTA definitions, which underpin the demographic figures on this page, are redrawn only once a decade, so the two can drift apart between censuses.

Methodology

Where this data comes from

  • Postal geography — GeoNames open postal code database (CC BY 4.0), cross-checked against the US Census Gazetteer.
  • Demographics, income, housing, commute — US Census Bureau, American Community Survey 2019–2023 5-Year Estimates, ZIP Code Tabulation Area 91340. Tables B01001, B01002, B01003, B02001, B03003, B08301, B08303, B11001, B15003, B17001, B19001, B19013, B19301, B23025, B25002, B25003, B25024, B25035, B25064, B25077, B28002.
  • Land and water area — US Census Bureau 2023 Gazetteer Files.
  • Weather — NOAA National Weather Service, fetched live in your browser.
  • Map — OpenStreetMap contributors (ODbL).
On accuracy. ACS figures are survey estimates, not counts. The margin of error shown alongside the population figure means the true value has a 90% chance of falling in that range. For small ZIP codes the error can be large relative to the estimate — treat the direction as more reliable than the exact number. This page reports data for ZCTA 91340, the Census approximation of the USPS delivery area.