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Southwest, Westmoreland County, Pennsylvania Property Taxes

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Property Taxes in Southwest, Pennsylvania

  • Median Southwest, Pennsylvania effective property tax rate: 12.57%, significantly higher than the national median of 1.02%, and higher than the Pennsylvania state median of 2.75%.

  • Median Southwest, Pennsylvania home value: $8,620

  • Median annual Southwest, Pennsylvania tax bill: $1,084, $1,316 lower than the national median property tax bill of $2,400.

How are property taxes in Westmoreland calculated?

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

Last Updated April 13, 2026

Southwest, Westmoreland County, Pennsylvania Property Tax Bill Calculator

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

12.57%

Estimate Property Tax Bill

$1,084

$1,005

How Does the Southwest Property Tax Calculator Work?

Use this Southwest property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Southwest's median effective tax rate of 12.57% — based on actual property records in Westmoreland County — to generate your estimate.

Enter your property's estimated assessed value — the figure the local appraisal district uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Southwest'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 Southwest: rates range from 12.57% in 15685 to 12.57% in 15685, 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 Southwest.

About Southwest Property Taxes

About Property Taxes in Southwest, Westmoreland, Pennsylvania

Southwest's median effective property tax rate of 12.57% 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 Southwest. Homeowners in the 15685 ZIP code carry a median effective rate of 12.57%, while those in 15685 pay 12.57%. This spread — 0 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Westmoreland County. Understanding which part of Southwest you live in can make a meaningful difference to your annual tax bill.

Southwest homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before August 1, 2026.

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 Southwest, 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 Southwest'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 Southwest, 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 Southwest Tax Rate

12.57%

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 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 Southwest, Westmoreland County, Pennsylvania

Zip10th Percentile25th PercentileMedian Tax Rate75th Percentile90th Percentile
1568512.57%12.57%12.57%12.57%12.57%

Source: Ownwell

Property Tax Assessment Values Across Southwest, Westmoreland County, Pennsylvania

When examining property taxes in Southwest, 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. Westmoreland 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 Westmoreland County are sent in the spring each year and typically reach your mailbox by the middle of the month. Each property owner receives a notice with both the market value and assessed value, along with an estimate of the property tax bill.

For example, the median home price in Southwest is $8,620, with a median tax bill of $1,084. Tax bills range from $815 at the 25th percentile to $2,121 at the 90th percentile, and ZIP code 15685 has the highest median home price at $8,620.

Property Tax Assessment Values Across Southwest, Westmoreland County, Pennsylvania

Source: Ownwell

$4,555

$21,878

$39,200

Median Southwest Market Value

$8,620

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 Southwest, Westmoreland County, Pennsylvania

Zip10th Percentile25th PercentileMedian Home Price75th Percentile90th Percentile
15685$4,976$6,485$8,620$11,155$16,874

Source: Ownwell

Property Tax Bills Across Southwest, Westmoreland County, Pennsylvania

Property tax bills in Southwest are based on the assessed value of a home, not its market value. Local taxing authorities apply their tax rates to that assessed amount to determine what a homeowner owes each year. Factors such as the property’s characteristics, location, and any applicable exemptions can influence the final bill.

In Southwest, the median home price is $8,620, and the median property tax bill is $1,084 in ZIP code 15685. For many homeowners, the bill can vary widely, with the 25th percentile at $815, the 75th percentile at $1,402, and the 90th percentile at $2,121. Because property taxes are a recurring expense, even small changes in assessed value or tax rates can affect household budgets.

Property Tax Bills Across Southwest, Westmoreland County, Pennsylvania

Source: Ownwell

$569

$2,966

$5,362

Median Southwest Tax Bill

$1,084

Median Westmoreland County Tax Bill

$2,390

Median Pennsylvania Tax Bill

$3,050

Median United States Tax Bill

$2,400

Property Tax Bills Across Southwest, Westmoreland County, Pennsylvania

Zip10th Percentile25th PercentileMedian Tax Bill75th Percentile90th Percentile
15685$626$815$1,084$1,402$2,121

Source: Ownwell

Don't miss the deadline to appeal!

Frequently Asked Property Tax Questions in Southwest, Pennsylvania

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