94509 Property Tax Rate

Property owners in ZIP code 94509 (Antioch, California) pay a median of $3,692/year in property taxes on homes valued at $565,300. This translates to an effective tax rate of 0.65%, which is 6% below the California state average of 0.69%.

The monthly property tax burden for a median-valued home in 94509 is approximately $308, which factors into escrow payments on mortgages. This ZIP code is located within Contra Costa County. This is $1,208 less than the California average of $4,900/year.

Compared to similar ZIP codes in California, 94509 has higher property taxes. ZIP codes with similar effective rates include 92372 (0.65%) and 93207 (0.65%).

In Antioch, property taxes represent approximately 4.5% of the median household income of $81,512, providing context for the relative tax burden on homeowners in this area.

Under California's Proposition 13, your home reassesses to purchase price at sale with taxes capped at 1% and limited to 2% annual increases until the next sale. Contra Costa County offers a Homeowners' Exemption reducing assessed value by $7,000—file your claim with the Contra Costa County Assessor within 30 days of taking title. After closing, obtain your Preliminary Assessment Notice from the Contra Costa County Assessor, verify the base year value, and file any protest within 60 days if the assessed value is incorrect.