Property Tax in Rock Island County
via TaxByCounty
Rock Island's taxes run well above national norm
At 2.33%, Rock Island County's effective tax rate significantly exceeds the national median of 2.05%, placing it in roughly the 75th percentile nationally. The median property tax here is $3,372 annually—25% higher than the national median of $2,690—reflecting both the county's tax structure and its median home values of $144,700.
Among Illinois' highest-taxing counties
Rock Island ranks in the upper tier statewide, with an effective rate of 2.33% compared to Illinois' state average of 1.83%. This 50-basis-point difference means Rock Island homeowners pay significantly more in property taxes than the typical Illinois resident.
Rock Island higher than most peers
Compared to neighboring Stark County (1.64% effective rate) and Scott County (1.38%), Rock Island's 2.33% rate stands out as notably higher. The $3,372 median tax bill here outpaces Stark County's $1,700 and Scott County's $1,406, reflecting the region's tax rate variance.
Expect roughly $3,372 annually
On the median home valued at $144,700, Rock Island County homeowners typically pay $3,372 per year in property taxes. For homes with mortgages, expect an additional escrow buffer: the median with mortgage is $3,525.
Many Rock Island owners are overassessed
Property tax appeals are a powerful but underused tool—assessments often exceed market value, especially during downturns. If you believe your home's assessment is inflated, requesting a reassessment review could significantly lower your annual tax bill.