Middletown, New Castle County, Delaware Property Taxes

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Property Taxes in Middletown, Delaware

Median Middletown, Delaware effective property tax rate: 0.81%, significantly lower than the national median of 1.02%, and lower than the Delaware state median of null%.
Median Middletown, Delaware home value: $438,660
Median annual Middletown, Delaware tax bill: $3,621, $1,221 higher than the national median property tax bill of $2,400.

How are property taxes in New Castle calculated?

Property taxes in Middletown, Delaware 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 Middletown's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Middletown, knowing local tax details benefits homeowners and investors.

Last Updated April 13, 2026

Middletown, New Castle County, Delaware Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

0.81%

Estimate Property Tax Bill

$3,553

$3,297

How Does the Middletown Property Tax Calculator Work?

Use this Middletown property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Middletown's median effective tax rate of 0.81% — based on actual property records in New Castle County — to generate your estimate.

Enter your property's estimated assessed value — the figure the local assessment office uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Middletown's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.

Your bill may vary by ZIP code within Middletown: rates range from 0.81% in 19709 to 0.81% in 19709, primarily due to differences in school district levies and local assessment districts.

For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Middletown.

About Middletown Property Taxes

About Property Taxes in Middletown, New Castle, Delaware

Middletown’s median effective property tax rate of 0.81% is lower than the Delaware state median and lower than the national median of 1.02%. This rate reflects the New Castle County base levy combined with local school district levies and special assessment districts that vary by subdivision throughout the city.

Property tax rates are not uniform across Middletown. Homeowners in the 19709 ZIP code carry a median effective rate of 0.81%, while those in the lowest ZIP also pay 0.81%. This spread — 0.00 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across New Castle County. Understanding which part of Middletown you live in can make a meaningful difference to your annual tax bill.

Middletown homeowners who believe their assessed value is too high can file a formal appeal with the Tax Assessor before the March 14, 2026 deadline each year.

If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.

Property Tax Rates Across Middletown, New Castle County, Delaware

As noted earlier, local government entities set tax rates, which can vary widely within a state.

Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.

While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.

Below, you can compare Middletown's effective property tax rate to other cities in Delaware and the median property tax rates in Delaware and the U.S.

Property Tax Rates Across Middletown, New Castle County, Delaware

Source: Ownwell

0.35%

1.20%

2.05%

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 Middletown Tax Rate

0.81%

Median Effective New Castle County Tax Rate

0.80%

Median Effective Delaware Tax Rate

1.33%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Middletown, New Castle County, Delaware

Zip	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
19709	0.58%	0.71%	0.81%	0.92%	1.06%

Source: Ownwell

Property Tax Assessment Values Across Middletown, New Castle County, Delaware

When examining property taxes in Middletown, Delaware, understanding the distinction between market value and assessed value is crucial.

The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. New Castle County estimates the market value for tax purposes.

The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.

Assessment notices:

In New Castle County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of the month.

Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. For example, the median home price in Middletown is $438,660, with tax bills ranging significantly across the county. ZIP code 19709 has the highest median home price at $438,660.

Property Tax Assessment Values Across Middletown, New Castle County, Delaware

Source: Ownwell

$99,090

$472,410

$845,730

Median Middletown Market Value

$438,660

Median New Castle County Market Value

$290,430

Median Delaware Market Value

$66,000

Median United States Market Value

$235,294

Property Tax Assessment Values Across Middletown, New Castle County, Delaware

Zip	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
19709	$129,699	$313,830	$438,660	$535,680	$612,891

Source: Ownwell

Property Tax Bills Across Middletown, New Castle County, Delaware

Property tax bills in Middletown are based on the assessed value of a home and the local tax rate set by New Castle County and other taxing authorities. When a property’s market value changes, the assessed value can be updated, which may raise or lower the tax bill. Homeowners in Middletown should also know that exemptions or appeals can affect what they owe.

The typical tax bill in this area is $3,621, which is higher than the $2,400 national median property tax bill and above the 1.02% national median property tax rate. With a median home price of $438,660, property taxes can be a meaningful part of monthly housing costs. Bills in the area also vary, with the 25th percentile at $2,587 and the 75th percentile at $4,440, showing how different assessments and property characteristics can affect what homeowners pay.

Property Tax Bills Across Middletown, New Castle County, Delaware

Source: Ownwell

$783

$6,865

$12,947

Median Middletown Tax Bill

$3,621

Median New Castle County Tax Bill

$2,329

Median Delaware Tax Bill

$1,454

Median United States Tax Bill

$2,400

Property Tax Bills Across Middletown, New Castle County, Delaware

Zip	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
19709	$1,573	$2,587	$3,621	$4,440	$5,248

Source: Ownwell

Don't miss the deadline to appeal!

Dates
Appeal Deadline	March 14

Links
New Castle Tax Assessor
Website	www3.newcastlede.gov

Frequently Asked Property Tax Questions in Middletown, Delaware

How are property taxes calculated in Middletown, Delaware?

Property taxes in Middletown, Delaware are calculated by multiplying your property's assessed value by the applicable tax rate set by local taxing authorities. The assessed value is determined by the county assessor and may differ from your property's market value depending on local assessment ratios and exemptions.

How do I appeal my property taxes in Middletown, Delaware?

To appeal your property taxes in Middletown, Delaware, you typically need to file a formal protest or appeal with your local appraisal district or assessor's office by the stated deadline. You'll need evidence such as comparable sales, a recent independent appraisal, or documentation of property condition issues. Ownwell can handle this entire process for you.

What property tax exemptions are available in Middletown, Delaware?

Common property tax exemptions in Middletown, Delaware include homestead exemptions for primary residences, senior citizen exemptions, veteran exemptions, and disability exemptions. Exemption amounts and eligibility requirements vary by county. Contact your local appraisal district or check Ownwell for details specific to your property.

When are property taxes due in Middletown, Delaware?

Property tax deadlines in Middletown, Delaware vary by county but typically include an assessment notice period in spring or early summer, followed by an appeal deadline, and a tax payment due date in the fall or winter. Check with your county assessor's office for specific dates in your area.

How can Ownwell help reduce my property taxes in Middletown, Delaware?

Ownwell provides professional property tax appeal services in Middletown, Delaware. Our team analyzes your assessment, gathers evidence, files all paperwork, and represents you at hearings — all with no upfront cost. You only pay a percentage of your savings if we successfully lower your tax bill.