Home and mortgage
Contra Costa County, CA Property Tax Calculator
Contra Costa County homeowners pay a median $7,156 a year in property tax, 0.83% of a median $866,800 home: above California's 0.70% but below the national 0.94%.
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Property tax in Contra Costa County by home value, at 0.83%
| Home value | A year | A month |
|---|---|---|
| $430,000 | $3,552 | $296 |
| $650,000 | $5,369 | $447 |
| $870,000 | $7,186 | $599 |
| $1,300,000 | $10,738 | $895 |
| $1,730,000 | $14,290 | $1,191 |
Contra Costa County against California and the US
| Effective rate | Median tax | Median home value | Median household income | |
|---|---|---|---|---|
| Contra Costa County | 0.83% | $7,156 | $866,800 | $127,229 |
| California | 0.70% | $5,124 | $734,700 | $99,122 |
| United States | 0.94% | $3,119 | $332,700 | $80,734 |
How this calculator works
Median real estate taxes paid ÷ median home value in Contra Costa County, from the Census Bureau's American Community Survey 2020–2024 5-year estimates. The calculator starts at the county's median home value and rate.
Questions people ask
What is the property tax rate in Contra Costa County?
The effective rate is 0.83%: a median $7,156 a year on a median $866,800 home. That's the 3rd highest of the 41 California counties we cover.
How much is property tax on a $400,000 house in Contra Costa County?
About $3,304 a year, $275 a month, at the county's effective rate, before any exemption.
How does Contra Costa County compare with the rest of California?
Its rate is above the state's 0.70%. Across California, covered counties range from 0.61% to 0.88%.
How do I lower my Contra Costa County property tax?
Apply for every exemption you qualify for, such as a homestead exemption, and appeal your assessment if it is higher than comparable homes sold nearby; the county assessor explains the deadlines.
Other California counties
- Kern County
- Placer County
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- Merced County
- Tuolumne County
- Orange County
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- Monterey County
- Tehama County
- San Mateo County
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Sources
Updated by the RateHerald team. The maths is tested against worked examples; report a problem.