Historic New Castle, New Castle County, Delaware Property Taxes
Median Historic New Castle, DE effective property tax rate: 0.60%, significantly lower than the national median of 1.02%. Median Historic New Castle, DE home value: $194,580. Median annual Historic New Castle, DE tax bill: $1,136, $1,264 lower than the national median property tax bill of $2,400.
How are property taxes in New Castle calculated?
Property taxes in Historic New Castle, DE are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.
Understanding Historic New Castle’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Historic New Castle, knowing local tax details benefits homeowners and investors.
Last Updated March 1, 2025
Historic New Castle, New Castle County, Delaware Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
0.6%
Estimate Property Tax Bill
$1,167
$1,083
Property Tax Rates Across Historic New Castle, New Castle County, Delaware
Property Tax Rates Across Historic New Castle, New Castle County, Delaware
Source: Ownwell

0.44%
1.44%
2.43%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Historic New Castle Tax Rate
0.60%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective New Castle County Tax Rate
0.84%
Median Effective Delaware Tax Rate
1.41%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Historic New Castle, New Castle County, Delaware
Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
19720 | 0.30% | 0.45% | 0.60% | 1.21% | 2.59% |
Source: Ownwell
Property Tax Assessment Values Across Historic New Castle, New Castle County, Delaware
Property Tax Assessment Values Across Historic New Castle, New Castle County, Delaware
Source: Ownwell

$71,775
$387,113
$702,450
Median Historic New Castle Market Value
$194,580
Median New Castle County Market Value
$248,490
Median Delaware Market Value
$64,200
Median United States Market Value
$235,294
Property Tax Assessment Values Across Historic New Castle, New Castle County, Delaware
Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
19720 | $40,300 | $85,500 | $194,580 | $250,920 | $321,300 |
Source: Ownwell
Property Tax Bills Across Historic New Castle, New Castle County, Delaware
Property Tax Bills Across Historic New Castle, New Castle County, Delaware
Source: Ownwell

$702
$6,369
$12,036
Median Historic New Castle Tax Bill
$1,136
Median New Castle County Tax Bill
$2,154
Median Delaware Tax Bill
$1,362
Median United States Tax Bill
$2,400
Property Tax Bills Across Historic New Castle, New Castle County, Delaware
Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
19720 | $526 | $862 | $1,136 | $1,500 | $2,026 |
Source: Ownwell