PropertyTaxPeek

Contra Costa County, CA vs King County, WA

Property Tax Rate Comparison 2025

Quick Answer

Contra Costa County, CA: 0.72% effective rate · $5,433/yr median tax · median home $754,593

King County, WA: 1.01% effective rate · $5,651/yr median tax · median home $559,559

Side-by-Side Comparison

MetricContra Costa County, CAKing County, WANational Avg
Effective Tax Rate0.72%1.01%1.06%
Median Annual Tax$5,433$5,651$2,778
Median Home Value$754,593$559,559$268,728
Population1,165,9272,269,675

Contra Costa County, CA

Effective Rate
0.72%
Median Annual Tax
$5,433
Median Home Value
$754,593
Population
1,165,927
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King County, WA

Effective Rate
1.01%
Median Annual Tax
$5,651
Median Home Value
$559,559
Population
2,269,675
Full profile →

Frequently Asked Questions

What is the property tax difference between Contra Costa County and King County?
Contra Costa County, CA has an effective property tax rate of 0.72% with a median annual tax of $5,433. King County, WA has a rate of 1.01% with a median annual tax of $5,651. The difference is 0.29 percentage points.
Which county has higher property taxes, Contra Costa County or King County?
King County, WA has the higher effective property tax rate at 1.01% compared to 0.72%.
How do Contra Costa County and King County compare to the national average?
The national average effective property tax rate is 1.06%. Contra Costa County is below average at 0.72%, and King County is below average at 1.01%.