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Property tax (Contra Costa County)
Nominal rate applied to assessed value. The 1% Prop 13 general levy is fixed statewide; local voter-approved debt varies by Tax Rate Area, so the countywide average (~1.10%) is used here. Proposition 8 allows a temporary reduction when market value falls below the factored assessed value.
| Home value | $500,000 |
| − Homeowners' Exemption | $7,000 |
| Taxable | $493,000 |
| Rate | 1.10% |
| Tax | $5,423 |
Rate = Proposition 13 general levy 1.00% + Voter-approved bonds & overrides (county average) 0.10%.