New Castle County Property Tax Rate — Delaware 2026
In New Castle County, Delaware, homeowners pay a median annual property tax of $2,444 on a median home value of $329,800, resulting in an effective property tax rate of 0.74%. This rate is 0.21% higher than the Delaware state average (0.53%) and 0.17% lower than the national average (0.91%).
How New Castle County Compares
Property taxes in New Castle County are below the national average, suggesting a more affordable tax environment for homeowners in this area.
Property Tax Calculator for New Castle County
Enter your home’s estimated market value to calculate your approximate annual property tax in New Castle County, Delaware.
This estimate uses the effective tax rate of 0.74% based on ACS data. Actual taxes may differ based on local assessments, exemptions, and levies.
Housing Breakdown
Property Tax Details for New Castle County, Delaware
The median property tax paid by homeowners in New Castle County is $2,444 per year. Based on a median home value of $329,800, this translates to an effective property tax rate of 0.74%.
For context, the statewide median property tax in Delaware is $1,731 with an effective rate of 0.53%, while the national average effective rate stands at 0.91%. New Castle County’s effective rate is 0.21% higher than the Delaware state average (0.53%).
Of the 222,943 housing units in New Castle County, approximately 68.51% are owner-occupied and 31.49% are renter-occupied. Homeownership rates can influence local tax policy, as communities with higher ownership rates often see more voter engagement on property tax issues.
Important: The data on this page is for informational purposes only and should not be used as tax advice. Actual property taxes depend on your property’s assessed value, local millage rates, and any applicable exemptions. Contact your county assessor’s office for precise tax information.