Property Taxes in West Mifflin, Pennsylvania
Median West Mifflin, Pennsylvania effective property tax rate: 4.09%, significantly higher than the national median of 1.02%, and higher than the Pennsylvania state median of 2.75%.
Median West Mifflin, Pennsylvania home value: $75,400
Median annual West Mifflin, Pennsylvania tax bill: $3,077, higher than the national median property tax bill of $2,400.
How are property taxes in Allegheny calculated?
Property taxes in West Mifflin, 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 West Mifflin's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in West Mifflin, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
How Does the West Mifflin Property Tax Calculator Work?
Use this West Mifflin property tax calculator to estimate your annual tax bill. Enter your property's assessed value and our calculator applies West Mifflin's median effective tax rate of 4.09% — based on actual property records in Allegheny 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 West Mifflin'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 West Mifflin: rates range from 3077.00 in 15122 to 3077.00 in 15122, primarily due to differences in school district levies and local assessment districts.
West Mifflin's property tax burden is higher than the Pennsylvania median tax rate of 2.75% and the national median property tax rate of 1.02%. The median property tax bill is 3077, which is $677 higher than the state median tax bill.
If your estimate is higher than expected, Ownwell can appeal your West Mifflin assessment — you only pay if we save you money.
About West Mifflin Property Taxes
About Property Taxes in West Mifflin, Allegheny, Pennsylvania
West Mifflin’s median effective property tax rate of 4.09% is higher than the Pennsylvania state median of 2.75% and higher than the national median of 1.02%. This rate reflects the Allegheny 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 West Mifflin. Homeowners in the 15122 ZIP code carry a median effective rate of 4.09%, while those in the lowest ZIP also pay 4.09%. This spread reflects how school district boundaries and local assessment districts are drawn across Allegheny County. Understanding which part of West Mifflin you live in can make a meaningful difference to your annual tax bill.
West Mifflin homeowners who believe their assessed value is too high can file a formal appeal with the 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 West Mifflin, Allegheny 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 West Mifflin'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 West Mifflin, Allegheny County, Pennsylvania
Source: Ownwell
1.92%
3.29%
4.66%
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 West Mifflin Tax Rate
4.09%
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 Allegheny County Tax Rate
2.77%
Median Effective Pennsylvania Tax Rate
2.75%
Median Effective United States Tax Rate
1.27%
Property Tax Rates Across West Mifflin, Allegheny County, Pennsylvania
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 15122 | 4.03% | 4.06% | 4.09% | 4.18% | 4.18% |
Source: Ownwell
Save on Your Property Taxes and More With Ownwell
$774
Average Annual Tax Savings
Property Tax Assessment Values Across West Mifflin, Allegheny County, Pennsylvania
When examining property taxes in West Mifflin, 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 Allegheny 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 Allegheny 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 West Mifflin.
For example, the median home price in West Mifflin is $75,400, with tax bills ranging significantly across the county. 15122 has the highest median home price at $75,400.
Property Tax Assessment Values Across West Mifflin, Allegheny County, Pennsylvania
Source: Ownwell
$23,400
$310,675
$597,950
Median West Mifflin Market Value
$75,400
Median Allegheny County Market Value
$109,400
Median Pennsylvania Market Value
$118,310
Median United States Market Value
$274,101
Property Tax Assessment Values Across West Mifflin, Allegheny County, Pennsylvania
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 15122 | $46,000 | $60,750 | $75,400 | $97,850 | $129,320 |
Source: Ownwell
Save on Your Property Taxes and More With Ownwell
$774
Average Annual Tax Savings
Property Tax Bills Across West Mifflin, Allegheny County, Pennsylvania
Property tax bills in West Mifflin are based on the assessed value of a home, not its market price. Local tax rates are applied to that assessed value to determine the annual bill, so homeowners with similar homes can still see different taxes depending on their assessment. In Allegheny County, the median home price is $75,400, and the median property tax bill is $3,077, which is higher than the national median property tax bill of $2,400.
For many homeowners, that means property taxes can take a meaningful bite out of housing costs. Bills in West Mifflin also vary widely, with the 25th percentile at $2,471 and the 75th percentile at $4,014.
Ownwell helps homeowners lower their property tax bills by reviewing assessments, identifying overvaluation, and filing appeals when a home is taxed too high. By challenging an unfair assessed value, Ownwell can help homeowners save money year after year.
Property Tax Bills Across West Mifflin, Allegheny County, Pennsylvania
Source: Ownwell
$569
$8,974
$17,379
Median West Mifflin Tax Bill
$3,077
Median Allegheny County Tax Bill
$3,120
Median Pennsylvania Tax Bill
$3,050
Median United States Tax Bill
$3,209
Property Tax Bills Across West Mifflin, Allegheny County, Pennsylvania
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 15122 | $1,847 | $2,471 | $3,077 | $4,014 | $5,330 |
Source: Ownwell
Save on Your Property Taxes and More With Ownwell
$774
Average Annual Tax Savings
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | September 1 |
Links | |
|---|---|
| Allegheny Tax Assessor | |
| Website | realestate.alleghenycounty.us |