New Castle County Property Taxes
New Castle County, Delaware
Effective Tax Rate
0.00%
48.2% above state avgMedian Annual Tax
$0
$204/mo escrow
Estimate Your Tax
Annual Tax
$0
Monthly
$0
Eff. Rate
0.74%
At a Glance
Median Home Value
$329,800
State avg ▲ $324,567
Tax w/ Mortgage/yr
$2,481
$207/mo escrow
Tax w/o Mortgage/yr
$2,334
$195/mo
State Tax Rate Rank
#3
of 3 counties (1 = lowest)
Similar tax rates
Data Story
About Property Taxes in New Castle County, Delaware
New Castle taxes rank slightly above average
New Castle County's effective tax rate of 0.741% sits slightly above the national median of 0.95%, though homeowners still pay less than the national median property tax of $2,690. The median tax bill here is $2,444 on a median home valued at $329,800.
New Castle has Delaware's highest rate
New Castle County ranks first among Delaware's three counties for property tax burden, with an effective rate of 0.741% compared to the state average of 0.510%. Residents pay a median of $2,444 in annual taxes—nearly $800 more than the state median of $1,649.
New Castle stands out for higher taxes
New Castle County's 0.741% rate is significantly higher than Sussex County's 0.331% and Kent County's 0.458%. With median taxes of $2,444, New Castle homeowners pay roughly double what Sussex residents pay, despite comparable home values.
Budget around $2,444 per year
On New Castle County's median home value of $329,800, homeowners pay approximately $2,444 in annual property taxes. With a mortgage, that rises to $2,481; without one, it's $2,334.
Challenge assessments to lower bills
New Castle County homeowners should scrutinize their assessments closely, as overvaluations are common in higher-tax counties. Filing an appeal costs nothing and could result in significant annual savings if your assessed value is inflated.
How New Castle County Compares
Median Annual Property Tax
New Castle County
0.74%
Effective rate
Delaware Avg
0.51%
Effective rate
National Avg
0.91%
Effective rate
Frequently Asked Questions
What is the property tax rate in New Castle County, Delaware?
How much are property taxes in New Castle County?
How does New Castle County compare to the Delaware average?
What is the median home value in New Castle County, Delaware?
Why is New Castle County property tax rate higher than the Delaware average?
How does New Castle County rank for property taxes in Delaware?
Counties with Similar Tax Rates
Nearby Counties
Other Counties in Delaware
Data updated: March 2026
Data from U.S. Census Bureau, American Community Survey 2019-2023 5-Year Estimates. Effective tax rate is calculated as median property tax divided by median home value.