HousingHandbookReference data

U.S. ZIP Code · CA94523

Contra Costa County · San Francisco-Oakland-Fremont, CA

Typical home value

$1,000,457[1]

Zillow Home Value Index, as of April 2026

Appreciation

1-year
-2.5%
5-year / yr
+2.1%
10-year / yr
+4.2%

Relative price

vs U.S.
+252.2%
vs metro
-20.0%
vs state
+42.8%
ZIP 94523 location in CA
Location of ZIP 94523 in CA

Price history

Zillow Home Value Index — monthly, smoothed and seasonally adjusted.

The typical home in 94523 is worth $1,000,457 — 20.0% below the San Francisco-Oakland-Fremont, CA median. Over the past year, values have fallen 2.5%. Homes here rent for a typical $2,791 a month — a 3.3% gross rental yield. The effective property tax rate is 0.7%.

#Rent & investment

Typical asking rent, and the returns it implies at the current home value.

Monthly rent
$2,791[2]
Gross yield
3.3%[2]
Cap rate
2.0%[2]

#Property tax

Effective rate — total real estate taxes paid relative to total home value.

Effective tax rate
0.7%[3]
Typical annual tax
$6,997[3]

#Climate risk

FEMA National Risk Index ratings for Contra Costa County. "Not Applicable" means the hazard does not threaten the county.

Overall risk
Very High[4]
Riverine flood
Very High
Coastal flood
Relatively Moderate
Wildfire
Relatively Moderate
Drought
Relatively High
Heat wave
Relatively High
Hurricane
Not Applicable
Tornado
Relatively Low
Earthquake
Relatively High
Winter weather
Very Low

#Who lives here

Population
34,592[3]
Median household income
$142,586[3]

#Migration

Household moves in and out of Contra Costa County over a year, from IRS tax-return data.

Net migration
-4,064[5]
Moved in
24,964
Moved out
29,028

Schools

Open public schools in this ZIP, from the NCES Common Core of Data.

Public schools
13
Elementary
6
Middle
2
High
3
  • College Park High

    High · Grades 9–12 · Mt. Diablo Unified

    1,997 students

  • Sequoia Middle

    Middle · Grades 6–8 · Mt. Diablo Unified

    835 students

  • Valley View Middle

    Middle · Grades 6–8 · Mt. Diablo Unified

    785 students

  • Valhalla Elementary

    Elementary · Grades K–5 · Mt. Diablo Unified

    686 students

  • Pleasant Hill Elementary

    Elementary · Grades K–5 · Mt. Diablo Unified

    646 students

Run the numbers

Interactive calculators pre-filled with this ZIP's typical home value, rent, and property-tax rate. Edit any field to recompute.

Gross yield3.3%
Net yield (after ~40% expenses)2.0%
Annual rent$33,491

Gross and net yield are estimates based on the inputs and the selected expense ratio. Actual income and expenses will vary by property and market. Not investment advice.

Monthly payment$5,059
Loan principal$800,365
Down payment$200,091
Total interest paid$1,020,822

Estimated monthly payments include principal and interest only. Actual costs will include property tax, insurance, possibly PMI, and HOA fees not modeled here. Loan terms shown are estimates; consult a licensed lender for current rates and qualification.

Own : rent ratio2.32
Monthly cost to own$6,476
Monthly rent$2,791

Renting is meaningfully cheaper month-to-month.

This calculator projects multi-year scenarios based on assumptions about appreciation, rent growth, and investment returns — none of which are guaranteed. Actual outcomes depend on variables this tool cannot know. Not financial or real estate advice.

#Metro ranking

Where this ZIP sits among others in its metro area.

Appreciation
64th percentile[1]
Rental yield
53rd percentile[2]
Property tax
38th percentile[3]

Frequently asked

How much is a home worth in ZIP code 94523?
The typical home in 94523 is worth $1,000,457, based on the Zillow Home Value Index.
Are home values rising in 94523?
Home values in 94523 are down 2.5% over the past year, and up 2.1% a year over five years.
What is the typical rent in 94523?
A typical home in 94523 rents for about $2,791 a month, a gross rental yield of 3.3%.
What is the property tax rate in 94523?
The effective property tax rate in 94523 is 0.7% — roughly $6,997 a year on a typical home.
Who lives in 94523?
ZIP code 94523 has a population of 34,592 and a median household income of $142,586.

#Comparable ZIPs

Same metro, nearest typical home value. Each card shows the comparable ZIP's headline numbers so you can scan at a glance.

  • La Honda CDP, CA

    Typical home
    $1,000,692
    Gross yield
  • Walnut Creek, CA

    Typical home
    $1,001,598
    Gross yield
    3.3%
  • Oakland, CA

    Typical home
    $999,150
    Gross yield
    2.8%
  • San Francisco, CA

    Typical home
    $1,002,907
    Gross yield
    5.2%
  • Berkeley, CA

    Typical home
    $1,003,007
    Gross yield
    3.5%
  • San Francisco, CA

    Typical home
    $1,007,904
    Gross yield
    3.6%

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