Irwin, Westmoreland County, Pennsylvania Property Taxes

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Property Taxes in Irwin, Pennsylvania

Median Irwin, Pennsylvania effective property tax rate: 13.17%, significantly higher than the national median of 1.02%, and higher than the Pennsylvania state median of 2.75%.
Median Irwin, Pennsylvania home value: $22,990
Median annual Irwin, Pennsylvania tax bill: $3,017, higher than the national median property tax bill of $2,400.

How are property taxes in Westmoreland calculated?

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

Last Updated April 13, 2026

Irwin, Westmoreland County, Pennsylvania Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

13.17%

Estimate Property Tax Bill

$3,028

$2,810

How Does the Irwin Property Tax Calculator Work?

Use this Irwin property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Irwin's median effective tax rate of 13.17% — based on actual property records in Westmoreland 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 Irwin'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 Irwin: rates range from 13.17% in 15642 to 13.17% in 15642, 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 Irwin.

About Irwin Property Taxes

About Property Taxes in Irwin, Westmoreland, Pennsylvania

Irwin’s median effective property tax rate of 13.17% is higher than the Pennsylvania state median of 2.75% and higher than the national median of 1.02%. This rate reflects the Westmoreland 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 Irwin. Homeowners in the 15642 ZIP code carry a median effective rate of 13.17%, while those in the lowest ZIP code also pay 13.17%. This spread reflects how school district boundaries and local assessment districts are drawn across Westmoreland County. Understanding which part of Irwin you live in can make a meaningful difference to your annual tax bill.

Irwin homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before the August 1, 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 Irwin, Westmoreland County, Pennsylvania

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

Property Tax Rates Across Irwin, Westmoreland County, Pennsylvania

Source: Ownwell

11.95%

13.38%

14.82%

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 Irwin Tax Rate

13.17%

Median Effective Westmoreland County Tax Rate

13.69%

Median Effective Pennsylvania Tax Rate

2.75%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Irwin, Westmoreland County, Pennsylvania

Zip	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
15642	12.22%	13.17%	13.17%	13.17%	13.69%

Source: Ownwell

Property Tax Assessment Values Across Irwin, Westmoreland County, Pennsylvania

When examining property taxes in Irwin, Pennsylvania, 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 Westmoreland 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 Westmoreland 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 Irwin.

For example, the median home price in Irwin is $22,990, with tax bills ranging significantly across the county. 15642 has the highest median home price at $22,990.

Property Tax Assessment Values Across Irwin, Westmoreland County, Pennsylvania

Source: Ownwell

$4,555

$21,878

$39,200

Median Irwin Market Value

$22,990

Median Westmoreland County Market Value

$17,380

Median Pennsylvania Market Value

$118,310

Median United States Market Value

$235,294

Property Tax Assessment Values Across Irwin, Westmoreland County, Pennsylvania

Zip	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
15642	$10,880	$16,550	$22,990	$36,560	$50,300

Source: Ownwell

Property Tax Bills Across Irwin, Westmoreland County, Pennsylvania

Property tax bills in Irwin are based on the assessed value of a home, not the market value alone. Local taxing authorities apply their tax rates to that assessed value to determine the bill, so changes in assessment can directly affect what a homeowner owes.

Several factors shape the final amount, including the home’s assessed value, the local tax rate, and any exemptions or appeals that may apply. In Westmoreland County, property tax bills can vary widely from home to home, which means two similar properties may still receive different bills depending on their assessments.

For homeowners, this can make property taxes a significant part of annual housing costs. In Irwin, the median property tax bill is $3,017, which is above the national median property tax bill of $2,400. Bills at the 25th percentile are $2,187, while the 75th percentile reaches $4,876 and the 90th percentile rises to $6,615.

Property Tax Bills Across Irwin, Westmoreland County, Pennsylvania

Source: Ownwell

$569

$2,966

$5,362

Median Irwin Tax Bill

$3,017

Median Westmoreland County Tax Bill

$2,390

Median Pennsylvania Tax Bill

$3,050

Median United States Tax Bill

$2,400

Property Tax Bills Across Irwin, Westmoreland County, Pennsylvania

Zip	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
15642	$1,472	$2,187	$3,017	$4,876	$6,615

Source: Ownwell

Don't miss the deadline to appeal!

Dates
Appeal Deadline	August 1

Links
Westmoreland Tax Assessor
Website	realproperty.co.westmoreland.pa.us

Frequently Asked Property Tax Questions in Irwin, Pennsylvania

How are property taxes calculated in Irwin, Pennsylvania?

Property taxes in Irwin, Pennsylvania 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 Irwin, Pennsylvania?

To appeal your property taxes in Irwin, Pennsylvania, 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 Irwin, Pennsylvania?

Common property tax exemptions in Irwin, Pennsylvania 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 Irwin, Pennsylvania?

Property tax deadlines in Irwin, Pennsylvania 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 Irwin, Pennsylvania?

Ownwell provides professional property tax appeal services in Irwin, Pennsylvania. 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.