PropertyTaxPeek

Contra Costa County, CA vs Mercer County, NJ

Property Tax Rate Comparison 2025

Quick Answer

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

Mercer County, NJ: 1.93% effective rate · $4,244/yr median tax · median home $219,907

Side-by-Side Comparison

MetricContra Costa County, CAMercer County, NJNational Avg
Effective Tax Rate0.72%1.93%1.06%
Median Annual Tax$5,433$4,244$2,778
Median Home Value$754,593$219,907$268,728
Population1,165,927387,340

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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Mercer County, NJ

Effective Rate
1.93%
Median Annual Tax
$4,244
Median Home Value
$219,907
Population
387,340
Full profile →

Frequently Asked Questions

What is the property tax difference between Contra Costa County and Mercer County?
Contra Costa County, CA has an effective property tax rate of 0.72% with a median annual tax of $5,433. Mercer County, NJ has a rate of 1.93% with a median annual tax of $4,244. The difference is 1.21 percentage points.
Which county has higher property taxes, Contra Costa County or Mercer County?
Mercer County, NJ has the higher effective property tax rate at 1.93% compared to 0.72%.
How do Contra Costa County and Mercer 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 Mercer County is above average at 1.93%.