Santa Clara County Property Tax Calculator
Santa Clara County sits at the center of Silicon Valley's home-price growth, which makes Proposition 13's purchase-price-based assessment especially consequential here: the county assessor pegs your figure to the price you paid when you buy, and state law caps its annual growth until the next sale. Longtime owners can end up with assessed values far below what a recent buyer down the street is carrying, even on comparable homes. Bring up Santa Clara County in the calculator above and enter a value for a rough estimate.
Annual Property Tax
$10,091Monthly (Escrow)
$841Effective Rate
0.68%Santa Clara County's effective rate (0.68%) is 3% lower than the California average (0.70%).
Edit inputs ↑Santa Clara County Effective Rate
0.68%
Vs. California Average
3% lower
California National Rank
#32 of 51
1 = highest statewide rate
County Median Home Value
$1,490,600
Estimated Annual Tax (Median Home)
$10,091
Monthly Equivalent
$841
Property tax in Santa Clara County, California
- The county assessor's office fixes assessed value at purchase, and Proposition 13 limits how much it can rise each year afterward.
- A sale or a significant remodel can trigger reassessment to current market value, which in a high-appreciation market like this one often produces a large one-time jump.
- A disputed number can be pushed back on informally through the assessor, or escalated to a formal hearing with the appeals board.
- Owner-occupants qualify for the homeowners' exemption, which reduces the taxable base a bit further than the Proposition 13 cap does on its own.
Other large California counties
Effective rate = aggregate real-estate taxes paid ÷ aggregate home value (ACS 2024 5-year).
| County | Effective Rate | Median Home Value |
|---|---|---|
| Los Angeles County | 0.67% | $834,200 |
| San Diego County | 0.67% | $854,700 |
| Orange County | 0.64% | $962,600 |
| Riverside County | 0.83% | $557,300 |
| San Bernardino County | 0.73% | $505,000 |
| Alameda County | 0.76% | $1,090,100 |
| Sacramento County | 0.76% | $534,200 |
| Contra Costa County | 0.78% | $866,800 |
| Kern County | 0.89% | $338,300 |
| Imperial County | 0.83% | $309,600 |
See property tax across every county in California at the California property tax calculator , or check your California income tax with the California income tax calculator .
Frequently asked questions
How is property tax calculated in Santa Clara County?
The county assessor's office ties an assessed value to your purchase price under Proposition 13, then applies capped annual growth until a sale resets it, and your local rate area levies against that base. In a fast-appreciating market, this purchase-price anchor is often the single biggest factor in what you owe relative to a neighbor.
How do I appeal my Santa Clara County assessment?
Bring the dispute to the county assessment appeals board during the annual window, or first try an informal request with the assessor's office, presenting comparable recent sales as support. Appeals are more common in years when the market has cooled and assessed values may exceed current worth.
Does Santa Clara County offer a homestead exemption?
In California, an owner-occupied primary residence qualifies for the homeowners' exemption, which trims assessed value before local rates are applied and rides on top of the Proposition 13 cap already limiting growth.
Why do Santa Clara County neighbors pay such different property tax?
Because assessed value resets to market price only at sale, a family that bought decades ago can be paying tax on a fraction of what a recent buyer's identical home is assessed at. Proposition 13's annual growth cap widens that gap every year prices keep climbing without a sale.
Sources
Related insights
Use these guides for rule explanations, planning context, and follow-up questions beyond the calculator result.