Property Tax 101

The median property tax (also known as real estate tax) in Contra Costa County is $3,883.00 per year, based on a median home value of $548,200.00 and a median effective property tax rate of 0.71% of property value.

Contra Costa County collects very high property taxes, and is among the top 25% of counties in the United States ranked by property tax collections. Of the fifty-eight counties in California, Contra Costa County is ranked 6th by median property taxes, and 4th by median tax as percentage of home value.

Compared to other counties in California, Contra Costa County collects a relatively high percentage of each property's value as tax. Combined with home values that are $164,000.00 greater than the California median of $384,200.00, this results in the relatively high property taxes in Contra Costa County.

• County Tax Comparison
• National Tax Comparison
• Other California Counties
• Property Lookup

6th out of 58 By median yearly property tax

4th out of 58 By percentage of median home value

9th out of 58 By percentage of median income

You can see how Contra Costa County (highlighted in green) compares to the fifty-eight other counties in California with the bar chart above, sorted by median property tax in dollars. For a visual map of county property tax rates in California, see our California county property tax map.

Remember: Real estate prices also play a large part in which California counties have the highest and lowest median property taxes. Higher-valued properties will generally have higher taxes, even if the median percentage of home value levied as property tax is different. For comparisons, you can also use Percentage Of Home Value.

Property tax assessments in Contra Costa County are the responsibility of the Contra Costa County Tax Assessor, whose office is located in Martinez, California.

If you need to pay your property tax bill, ask about a property tax assessment, look up the Contra Costa County property tax due date, or find property tax records, visit the Contra Costa County Tax Assessor's page. Applications for the Contra Costa County homestead exemption, any property tax appeals, and applications for a current use tax reduction must also be submitted to the Contra Costa County Assessor's Office.

For some properties, you can easily find the most recent tax assessment by looking up the property address with our property records search. You can also use our Contra Costa County Property Tax Calculator to estimate your property tax based on median tax values (results open in new page).