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Adelphi, Prince George's County, Maryland Property Taxes

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Property Taxes in Adelphi, Maryland

  • Median Adelphi, Maryland effective property tax rate: 1.56%, significantly higher than the national median of 1.02%, and higher than the Maryland state median of 1.21%.

  • Median Adelphi, Maryland home value: $341,300

  • Median annual Adelphi, Maryland tax bill: $4,791, $2,391 higher than the national median property tax bill of $2,400.

How are property taxes in Prince George's calculated?

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

Last Updated April 13, 2026

Adelphi, Prince George's County, Maryland Property Tax Bill Calculator

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

1.56%

Estimate Property Tax Bill

$5,324

$4,941

SAVE WITH OWNWELL

$774

Average Annual Tax Savings

How Does the Adelphi Property Tax Calculator Work?

Use this Adelphi property tax calculator to estimate your annual tax bill. Enter your property's assessed value and our calculator applies Adelphi's median effective tax rate of 1.56% — based on actual property records in Prince George's 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 Adelphi'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 Adelphi: rates range from 1.56% in 20783 to 1.56% in 20783, primarily due to differences in school district levies and local assessment districts.

Adelphi's median property tax bill of $4,791 is higher than the Maryland median tax bill, and it is also higher than the national median property tax bill of $2,400. If your estimate is higher than expected, Ownwell can appeal your Adelphi assessment — you only pay if we save you money.

About Adelphi Property Taxes

About Property Taxes in Adelphi, Prince George's, Maryland

Adelphi's median effective property tax rate of 1.56% is higher than the Maryland state median of 1.21% and higher than the national median of 1.02%. This rate reflects the Prince George's County base levy combined with local school district levies and special taxing districts that vary by subdivision throughout the city.

Property tax rates are not uniform across Adelphi. Homeowners in the 20783 ZIP code carry a median effective rate of 1.56%, while those in the same ZIP code also pay 1.56%. This spread reflects how school district boundaries and local assessment districts are drawn across Prince George's County. Understanding which part of Adelphi you live in can make a meaningful difference to your annual tax bill.

Adelphi homeowners who believe their assessed value is too high can file a formal appeal with the Tax Assessor before the February 13, 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 Adelphi, Prince George's County, Maryland

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 Adelphi's effective property tax rate to other cities in Maryland and the median property tax rates in Maryland and the U.S.

Property Tax Rates Across Adelphi, Prince George's County, Maryland

Source: Ownwell

1.28%

1.62%

1.97%

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 Adelphi Tax Rate

1.56%

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 Prince George's County Tax Rate

1.44%

Median Effective Maryland Tax Rate

1.21%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Adelphi, Prince George's County, Maryland

Zip10th Percentile25th PercentileMedian Tax Rate75th Percentile90th Percentile
207831.09%1.26%1.56%1.58%1.60%

Source: Ownwell

Property Tax Assessment Values Across Adelphi, Prince George's County, Maryland

When examining property taxes in Adelphi, Maryland, 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. The Prince George's County appraisal district 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 Prince George's County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of the month when notices are sent.

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. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Adelphi.

For example, the median home price in Adelphi is $341,300, with tax bills ranging significantly across the county. 20783 has the highest median home price at $341,300.

Property Tax Assessment Values Across Adelphi, Prince George's County, Maryland

Source: Ownwell

$225,100

$461,800

$698,500

Median Adelphi Market Value

$341,300

Median Prince George's County Market Value

$355,500

Median Maryland Market Value

$338,400

Median United States Market Value

$235,294

Property Tax Assessment Values Across Adelphi, Prince George's County, Maryland

Zip10th Percentile25th PercentileMedian Home Price75th Percentile90th Percentile
20783$105,000$115,000$341,300$416,425$500,410

Source: Ownwell

Property Tax Bills Across Adelphi, Prince George's County, Maryland

Property tax bills in Adelphi are calculated by applying the local tax rate to a home’s assessed market value. That assessment is based on the property itself, including its location, size, condition, and comparable home values in Prince George's County. For a home with a median price of $341,300, the tax bill can vary widely, with the 25th percentile at $1,799 and the 75th percentile at $6,047. The median tax bill in the area is $4,791, which is above the national median property tax bill of $2,400 and reflects a heavier burden for many homeowners.

Higher assessed values usually mean higher property tax bills, even when a homeowner’s income has not changed. That can make annual costs harder to predict and manage.

Ownwell helps homeowners save by reviewing assessments, identifying potential overvaluation, and filing property tax appeals and exemptions when available.

Property Tax Bills Across Adelphi, Prince George's County, Maryland

Source: Ownwell

$3,473

$6,429

$9,385

Median Adelphi Tax Bill

$4,791

Median Prince George's County Tax Bill

$4,985

Median Maryland Tax Bill

$4,092

Median United States Tax Bill

$2,400

Property Tax Bills Across Adelphi, Prince George's County, Maryland

Zip10th Percentile25th PercentileMedian Tax Bill75th Percentile90th Percentile
20783$1,309$1,799$4,791$6,047$6,992

Source: Ownwell

Don't miss the deadline to appeal!

Frequently Asked Property Tax Questions in Adelphi, Maryland

How are property taxes calculated in Adelphi, Maryland?
Property taxes in Adelphi, Maryland 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 Adelphi, Maryland?
To appeal your property taxes in Adelphi, Maryland, 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 Adelphi, Maryland?
Common property tax exemptions in Adelphi, Maryland 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 Adelphi, Maryland?
Property tax deadlines in Adelphi, Maryland 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 Adelphi, Maryland?
Ownwell provides professional property tax appeal services in Adelphi, Maryland. 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.