New Castle County Property Tax Rate
Delaware
New Castle County, Delaware has an effective property tax rate of 0.71%, which is 23% lower than the national average of 0.92%. On a home valued at $352,200, homeowners pay approximately $2,499 per year in property taxes. New Castle County ranks #1 out of 3 counties in Delaware for property tax rates.
$2,499
Per year
$352,200
2024 estimate
2.74%
Median income: $91,166
#1
of 3 counties in DE
Tax Breakdown
With Mortgage
$2,517
median annual tax
Without Mortgage
$2,446
median annual tax
Homeowners with a mortgage in New Castle County pay on average $71 more per year than those without. This difference often reflects how property tax escrow accounts in mortgaged homes capture the full tax obligation.
How New Castle County Compares
Top Counties in Delaware
Historical Property Tax Trends
| Year | Median Tax | Median Home Value | Effective Rate |
|---|---|---|---|
| 2020 | $2,058 | $266,500 | 0.77% |
| 2021 | $2,196 | $275,600 | 0.80% |
| 2022 | $2,369 | $312,000 | 0.76% |
| 2023 | $2,444 | $329,800 | 0.74% |
| 2024 | $2,499 | $352,200 | 0.71% |
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates
Delaware Property Tax Exemptions
Available to New Castle County homeowners
Senior School Tax Credit
50% of school property taxes up to $400
Homeowners age 65+
Disabled Veteran
Exemption on real property based on disability percentage
Veterans with service-connected disability; paraplegic veterans receive full exemption
Property Tax Calculator
Estimate your annual property tax in New Castle County
Estimated Annual Property Tax
$2,130
$178/month · Rate: 0.71%
Quick Facts
Think your property tax is too high?
Homeowners save an average of $1,148/year by appealing their assessment.
Learn How to Appeal →Cities in New Castle County
Explore property tax data for 2 cities in New Castle County, Delaware.
| City | Annual Tax | Rate |
|---|---|---|
| Wilmington | $1,905 | 0.85% |
| Newark | $2,903 | 0.81% |
Frequently Asked Questions
Data Source: U.S. Census Bureau, 2024 American Community Survey 5-Year Estimates. Effective tax rates are calculated by dividing median real estate taxes paid by median home value. Actual property tax rates may vary based on local taxing jurisdictions, exemptions, and assessment practices. This information is for general reference only and should not be used as a substitute for professional tax advice.