Market Overview
Home Prices in Port Costa, CA
The median home value in Port Costa, CA is $673,721 as of mid-2026, according to Zillow's Home Value Index (ZHVI).That's down 1.1% compared to a year ago and down 6.1% from two years prior.
Compared to the U.S. national median of $410,000, homes in Port Costa are priced64% above average. Port Costa is part of the San Francisco-Oakland-Berkeley, CA metro area.
Over the past five years, Port Costa home values have fallen by approximately9.5%, reflecting softening conditions in this market.
Price History
Port Costa Home Price Trend
City Comparison
Port Costa vs. National Median
At $673,721, homes in Port Costa cost 64% above the national median of $410,000. Buyers in Port Costa should expect to pay a premium compared to most U.S. markets.
Affordability
What Does It Cost to Buy in Port Costa?
20% Down Payment
$134,744
on $673,721
Monthly P&I
$3,514/mo
30-yr @ 6.8%
Total Monthly Est.
~$4,463/mo
incl. taxes & insurance
Income Needed
$178,520
gross annual (30% rule)
10% Down Option
$67,372
+ PMI applies
Loan Amount (20% dn)
$538,977
at current rates
Estimates assume a 30-year fixed mortgage at 6.8%. Monthly total includes estimated property taxes and homeowner's insurance. Actual costs vary.
FAQ
Frequently Asked Questions
What is the average home price in Port Costa, CA?
The median home value in Port Costa is $673,721 as of mid-2026, according to Zillow's Home Value Index (ZHVI). That's down 1.1% year-over-year.
How much have home prices changed in Port Costa?
Over the past year, home values in Port Costa have decreased by 1.1%. Over five years, prices have fallen approximately 9.5%.
How much do I need to earn to buy a home in Port Costa?
To comfortably afford the median home price of $673,721 with a 20% down payment ($134,744) at today's rates (6.8%), you'd need a gross annual income of approximately $178,520. This assumes keeping total housing costs at or below 30% of gross income.
How does Port Costa compare to the national average home price?
The national median home value is approximately $410,000. At $673,721, homes in Port Costa are 64% above the national average.
What metro area is Port Costa part of?
Port Costa is part of the San Francisco-Oakland-Berkeley, CA metropolitan area. Home prices and market conditions can vary across the broader metro region.