PropertyTaxPeek

King County, WA vs Rock Island County, IL

Property Tax Rate Comparison 2025

Quick Answer

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

Rock Island County, IL: 1.66% effective rate · $4,811/yr median tax · median home $289,874

Side-by-Side Comparison

MetricKing County, WARock Island County, ILNational Avg
Effective Tax Rate1.01%1.66%1.06%
Median Annual Tax$5,651$4,811$2,778
Median Home Value$559,559$289,874$268,728
Population2,269,675147,546

King County, WA

Effective Rate
1.01%
Median Annual Tax
$5,651
Median Home Value
$559,559
Population
2,269,675
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Rock Island County, IL

Effective Rate
1.66%
Median Annual Tax
$4,811
Median Home Value
$289,874
Population
147,546
Full profile →

Frequently Asked Questions

What is the property tax difference between King County and Rock Island County?
King County, WA has an effective property tax rate of 1.01% with a median annual tax of $5,651. Rock Island County, IL has a rate of 1.66% with a median annual tax of $4,811. The difference is 0.65 percentage points.
Which county has higher property taxes, King County or Rock Island County?
Rock Island County, IL has the higher effective property tax rate at 1.66% compared to 1.01%.
How do King County and Rock Island County compare to the national average?
The national average effective property tax rate is 1.06%. King County is below average at 1.01%, and Rock Island County is above average at 1.66%.