New Castle County, DE Property Tax Calculator
New Castle County homeowners pay a median $2,499 a year in property tax, 0.71% of a median $352,200 home: above Delaware's 0.50% but below the national 0.94%.
Property tax in New Castle County by home value, at 0.71%
| Home value | A year | A month |
|---|---|---|
| $200,000 | $1,420 | $118 |
| $300,000 | $2,130 | $178 |
| $400,000 | $2,840 | $237 |
| $500,000 | $3,550 | $296 |
| $750,000 | $5,325 | $444 |
| $1,000,000 | $7,100 | $592 |
New Castle County against Delaware and the US
| Effective rate | Median tax | Median home value | Median household income | |
|---|---|---|---|---|
| New Castle County | 0.71% | $2,499 | $352,200 | $91,166 |
| Delaware | 0.50% | $1,768 | $352,000 | $84,954 |
| United States | 0.94% | $3,119 | $332,700 | $80,734 |
How this calculator works
Median real estate taxes paid ÷ median home value in New Castle County, from the Census Bureau's American Community Survey 2020–2024 5-year estimates. The calculator starts at the county's median home value and rate.
What it assumes
- Cities, school districts and special districts within the county levy different rates, so bills vary within it.
- Survey figures cover 2020 to 2024 and lag recent reassessments.
Questions people ask
What is the property tax rate in New Castle County?
The effective rate is 0.71%: a median $2,499 a year on a median $352,200 home. That's the 1st highest of the 3 Delaware counties we cover.
How much is property tax on a $400,000 house in New Castle County?
About $2,840 a year, $237 a month, at the county's effective rate, before any exemption.
How does New Castle County compare with the rest of Delaware?
Its rate is above the state's 0.50%. Across Delaware, covered counties range from 0.32% to 0.71%.
How do I lower my New Castle County property tax?
Apply for every exemption you qualify for, such as a homestead exemption, and appeal your assessment if it is higher than comparable homes sold nearby; the county assessor explains the deadlines.
Other Delaware counties
Related calculators
Sources
Updated by the RateHerald team. The maths is tested against worked examples; report a problem.