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California's Geography of Wealth
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California’s
Geography
of Wealth
Legislat ive An al yst’s Office
LEGISLATIVE ANALYST’S OFFICE
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CALIFORNIA’S GEOGRAPHY OF WEALTH
California is the wealthiest state in the nation. Despite this
overall prosperity, wealth varies considerably across the
state and its residents. The concentration of wealth among
a small number of very wealthy individuals and households
has been the topic of much research and commentary
in recent years. Perhaps less discussed is the similarly
uneven geographical distribution of wealth. This publication
provides a short introduction to the geography of wealth in
California based on data from the period 2014 to 2016.
Income and wealth are similar but distinct concepts.
Income is money an individual earns or receives over a set
period of time. Wealth is all of the valuable assets—such
as stocks, bonds, and real estate—an individual owns. Net
worth, relatedly, is an individual’s wealth minus debts.
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LEGISLATIVE ANALYST’S OFFICE
CALIFORNIA IS THE
WEALTHIEST STATE IN THE COUNTRY
Californians’ net worth totals over $6 trillion or about
$160,000 per resident. The state holds 17 percent of
national net worth, while making up only 12 percent of the
U.S. population.
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CALIFORNIA’S GEOGRAPHY OF WEALTH
Total Net Worth
California $6.3 trillion
New York
Florida
Texas
Illinois
Pennsylvania
New Jersey
Massachusetts
Washington
Virginia
Ohio
Michigan
North Carolina
Connecticut
Colorado
Georgia
Maryland
Minnesota
Wisconsin
Arizona
Tennessee
Missouri
Indiana
Oregon
South Carolina
Louisiana
Nevada
Alabama
Kentucky
Oklahoma
Utah
Kansas
Iowa
Arkansas
Hawaii
Nebraska
New Hampshire
Mississippi
New Mexico
Idaho
Maine
Montana
Wyoming
Rhode Island
West Virginia
South Dakota
Delaware
North Dakota
Vermont
Alaska
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LEGISLATIVE ANALYST’S OFFICE
LARGE AMOUNTS OF WEALTH ARE
CONCENTRATED IN A FEW COMMUNITIES
California has about 1,650 zip codes. A minority of these
1,650 zip codes (300 wealthy zip codes) make up more
than two-thirds of the state’s net worth. Even among
wealthy zip codes, there is significant concentration of
wealth within a small number of extremely wealthy areas.
The state’s 30 wealthiest zip codes hold 20 percent of the
state’s net worth, while making up only 2 percent of state
population. The net worth of these wealthiest 30 zip codes
is equal to the total net worth of the state’s 1,200 least
wealthy zip codes.
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CALIFORNIA’S GEOGRAPHY OF WEALTH
Share of Statewide Net Worth
Top 30 Next 70 Next 200 Remaining 1,350
wealthiest wealthiest wealthiest zip codes
zip codes zip codes zip codes
Share of Statewide Population
Two percent of the
state's population live
in the top 30 zip codes,
but they hold 20 percent
of the state's wealth.
Three-quarters of the state's
population lives outside the
wealthiest 300 zip codes.
They collectively hold less than
one-third of the state's wealth.
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LEGISLATIVE ANALYST’S OFFICE
COASTAL COMMUNITIES HAVE THE
MOST WEALTH
All of the state’s wealthiest communities are found in
coastal areas. The San Francisco Bay Area, where the
average zip code has a net worth over $450,000 per
resident, is the state’s wealthiest region. Sections of Los
Angeles, Orange, and San Diego counties also have
considerable wealth. On the flipside, the average zip code
in the San Joaquin Valley has a net worth of only $60,000
per resident. The net worth of the San Joaquin Valley’s
wealthiest zip code ($320,000 per resident) falls well below
the average Bay Area zip code. While the high value of
homes in coastal areas is a key driver of high wealth in
these areas, home wealth is only part of the story. In most
high-wealth coastal communities, the majority of wealth is
held as income producing assets, such as stocks, bonds,
and rental real estate.
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CALIFORNIA’S GEOGRAPHY OF WEALTH
Wealth Across Regions of the State
Each dot represents a zip code. The placement of the dot shows the net worth per person in
that zip code. Counties with more wealth have more dots to the right.
San Francisco Bay Area
Alameda
Contra Costa
Marin
Napa
San Francisco
San Mateo
Santa Clara
Solano
Sonoma
Southern California
Los Angeles
Orange
Riverside
San Bernardino
Ventura
San Diego
Greater Sacramento
El Dorado
Placer
Sacramento
Yolo
San Joaquin Valley
Fresno
Kern
Kings
Madera
Merced
San Joaquin
Stanislaus
Tulare
Central Coast
Monterey
San Luis Obispo
Santa Barbara
Santa Cruz
Rest of the State
1,000,000 3,000,000 5,000,000 $7,000,000
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LEGISLATIVE ANALYST’S OFFICE
WEALTH VARIES CONSIDERABLY EVEN
WITHIN HIGH-WEALTH REGIONS
While the Bay Area is, overall, the wealthiest region of
California, there is considerable variation of wealth across
communities within the Bay Area. On one end of the
spectrum, 11 zip codes in the Bay Area have net worth in
excess of $1.5 million per resident. On the other end, the
net worth in about 15 percent of Bay Area zip codes falls
below $50,000 per resident.
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CALIFORNIA’S GEOGRAPHY OF WEALTH
Wealth Across Bay Area Communities
(Alameda, Contra Costa, San Francisco, San Mateo, and Santa Clara Counties.)
Least Wealthy Most Wealthy
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LEGISLATIVE ANALYST’S OFFICE
COMMUNITIES TEND TO NEIGHBOR
OTHER COMMUNITIES WITH SIMILAR
LEVELS OF WEALTH
Within California’s regions, high-wealth areas tend to be
grouped together and set apart from low-wealth areas,
which also tend to be grouped together. This can be seen
in the maps of zip codes in the Bay Area (previous page)
and Southern California. The darker purple zip codes (high-
wealth areas) generally are clustered, as are the darker blue
zip codes (low-wealth areas).
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CALIFORNIA’S GEOGRAPHY OF WEALTH
Wealth Across Southern California Communities
(Los Angeles, Orange and Ventura Counties.)
Least Wealthy Most Wealthy
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LEGISLATIVE ANALYST’S OFFICE
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CALIFORNIA’S GEOGRAPHY OF WEALTH
SOURCES AND METHODOLOGY
Our calculation of net worth relies on data and assumptions
from several different sources. First, we infer wealth in
the form of income producing assets (such as stocks,
bonds, rental properties, bank deposits, and business
interests) based on income from these sources reported
to the IRS. To do so, we follow a methodology developed
and improved by prior researchers. Second, we add
wealth held in primary residences, based on home values
reported on the American Community Survey. Finally, we
subtract household debt, based on data reported by the
Federal Reserve. This household debt data is available
at the county level. We distribute household debt within
each county to its constituent zip codes based on each zip
code’s housing costs, incomes, demographics, and levels
vehicle ownership.
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LEGISLATIVE ANALYST’S OFFICE
LAO PUBLICATIONS
This report was prepared by Brian Uhler and reviewed by Carolyn Chu. The Legislative
Analyst’s Office (LAO) is a nonpartisan office that provides fiscal and policy information
and advice to the Legislature.
To request publications call (916) 445-4656. This report and others, as well as an e-mail
subscription service, are available on the LAO’s website at www.lao.ca.gov. The LAO is
located at 925 L Street, Suite 1000, Sacramento, CA 95814.
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