Delaware Property Tax Rates 2025

County
Median Property Taxes
With Mortgage
Without Mortgage
New Castle County$2,444$2,481$2,334
Kent County$1,331$1,416$1,098
Sussex County$1,171$1,241$1,041
Note: "With Mortgage" above means the taxed property is under a mortgage, and "Without Mortgage" means it is owned outright.

Tax Rates by County

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)