Castro Valley, CA Property Tax Rates
Compare property tax rates across 2 ZIP codes in Castro Valley, California.
Avg Tax Rate
0.72%
Avg Annual Tax
$8,154
Avg Home Value
$1,131,300
ZIP Codes
2
Property Tax Overview: Castro Valley, CA
Castro Valley has 2 ZIP codes with property tax data. The average effective tax rate across these ZIPs is 0.72%, which is 4% above the California average of 0.69%. Annual property taxes range from $6,954 (ZIP 94546) to $9,353 (ZIP 94552).
For a home at Castro Valley's median value of $1,131,300, property taxes add approximately $678/month to housing costs. Castro Valley home values are above the California median of $744,838, meaning the monthly tax impact is correspondingly higher.
Property tax rates within Castro Valley vary by 0.01 percentage points across its ZIP codes. This variation typically reflects different school district boundaries, special assessment zones, and municipal service areas within the city.
Castro Valley vs California Average
Effective Tax Rate
4% above state average
Annual Property Tax
Median Home Value
Frequently Asked Questions
What is the average property tax rate in Castro Valley, CA?
The average effective property tax rate in Castro Valley, California is 0.72%, based on 2 ZIP codes.
How much is property tax in Castro Valley, CA?
The average median annual property tax in Castro Valley is $8,154 per year, with a median home value of $1,131,300.
Which ZIP code in Castro Valley has the lowest property tax rate?
ZIP code 94546 has the lowest effective tax rate in Castro Valley at 0.71%, with a median annual tax of $6,954.
How many ZIP codes are in Castro Valley, CA?
Castro Valley, California has 2 ZIP codes with property tax data available.
Which ZIP code in Castro Valley has the highest property tax rate?
ZIP code 94552 has the highest effective tax rate in Castro Valley at 0.73%, with a median annual tax of $9,353.
How do Castro Valley property taxes compare to the California average?
Castro Valley's average effective rate of 0.72% is 4% above the California state average of 0.69%.
What factors affect property tax rates between ZIP codes in Castro Valley?
Property tax rate differences within Castro Valley are typically driven by school district boundaries (which can account for 40–60% of a tax bill), special assessment zones for fire, water, or transit services, and whether a ZIP falls within city limits or an unincorporated area. Each taxing jurisdiction sets its own rate, which is why adjacent ZIP codes can have noticeably different effective rates.
Tips for Castro Valley Homeowners
- •Appeal your assessment: If your home is assessed higher than its market value, you can file a property tax appeal. Studies suggest 30–60% of properties are over-assessed. Most counties offer a free informal review process.
- •Check your exemptions: Homestead exemptions can reduce your taxable value and are available to primary residents in most states. Senior, veteran, and disability exemptions may also apply. Exemptions must typically be applied for — they are not automatic.
- •Know your assessment cycle: California reassesses properties periodically. After buying a home, your next tax bill may reflect a new assessment based on your purchase price. Budget accordingly, especially if you bought above prior assessed values.
- •Compare ZIP codes before buying: Even within Castro Valley, effective tax rates can vary significantly across ZIP codes due to different school district overlays. Use PropertyTaxByZip to compare specific ZIPs before choosing a neighborhood.
Looking for county-level property tax data? View Alameda County on TaxByCounty.com
Data from U.S. Census Bureau, American Community Survey 2019-2023 5-Year Estimates (ZCTA level). ZIP Code Tabulation Areas (ZCTAs) are Census approximations of USPS ZIP codes.
Estimates are informational only and should not be used as financial or legal advice.