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Radon Levels in Westmoreland County, Pennsylvania

EPA puts Westmoreland County in Zone 1, its highest radon zone. Homes with elevated levels occur in all three zones, so only a test measures yours.

Data checked By Radon411Methodology

Predicted
Zone 1Highest predicted potential
Measured
34.9%of 1,588 tests reported to CDC (2020) were at or above 4 pCi/L
Your home
Test to knowNo area figure here is a reading of your home.
How to test this homeFind a certified tester

The data

Westmoreland County, At a glance

Westmoreland County at a glance

Predicted: EPA radon zone

EPA Zone 1: highest predicted potential

This is a county-level geologic prediction. It is not a measurement of any address, and houses with elevated radon are found in all three zones.

What EPA predicts hereScreening level, geology

EPA predicts an average indoor of greater than 4 pCi/L (greater than 150 Bq/m³) across the county as a whole.

USGS geologic potential: High across 65% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Westmoreland County, 2020

Tests reported
1,588
At or above 4 pCi/L
34.9%
Median result
2.6 pCi/L
Reported results by concentration band, Westmoreland County, 2020
Under 2 pCi/L: 38%2 to 4 pCi/L: 27%4 pCi/L and above: 35%

Of 1,588 pre-mitigation tests reported to CDC, not homes in this area.

Reported results by concentration band, Westmoreland County, 2020: data table
Result bandTests MeasuredShare Measured
Under 2 pCi/L59737.6%
2 to 4 pCi/L43727.5%
4 pCi/L and above55434.9%

CDC publishes this figure only for counties here, so there is no state or national number to compare Westmoreland County, Pennsylvania with.

What these figures count

Distribution of radon tests reported to CDC, not this house. People testing before a sale, or because they suspect a problem, are over-represented in any reported testing data.

The figures at the top are for 2020: a percentage there is a share of radon tests reported to CDC for Westmoreland County in 2020, and a percentage in a view below is a share of the tests reported for the year or period it names. It is not a share of homes in Westmoreland County, and it is not a random sample: it counts only the tests people chose to run and that were reported.

CDC works out the shares and the median over pre-mitigation tests, counting a test not marked as before or after mitigation as one of them (1,588 for 2020). The median is the middle result of those tests, not of buildings. CDC also reports the number of buildings tested (1,099), a different count, so the two totals are not interchangeable.

Westmoreland County's own published CDC figures beside those of the counties that border it, for the same period.

Each figure is that county’s own published CDC figure for 2020, counting radon tests reported to CDC, not homes. Westmoreland County is this page. Nothing is averaged or combined across counties. The test count beside each county is CDC’s published number of pre-mitigation tests behind its figures. Figures from few tests can swing widely from year to year. Every Pennsylvania county’s own figure is in the Pennsylvania county table.

Measured: CDC tracking data. Figure above: 2020. Measured data period: 2005 to 2020 (every CDC figure on file).

Westmoreland County, State data

Pennsylvania's own radon test data

Measured

What Pennsylvania's own agencies publish about radon tests in Westmoreland County, with their period. These are not CDC's figures and are never added to them.

MeasuredState figures, not CDC's

What Pennsylvania DEP reports for the ZIP codes in Westmoreland County

Pennsylvania DEP publishes its figures by ZIP code, not by county. These are the 88 ZIP codes that lie wholly or partly in Westmoreland County, each with the state's own figures for it. Period: Period not stated by DEP.

ZIP codes in Westmoreland County
ZIP codeWhat the state reports
15012Basement: average 4.6 pCi/L, 1,117 tests; First floor: average 3.7 pCi/L, 75 tests
15062Basement: average 4.8 pCi/L, 403 tests; First floor: figures not shown
15068Basement: average 5.7 pCi/L, 3,496 tests; First floor: average 5.0 pCi/L, 187 tests
15083Basement: average 4.7 pCi/L, 50 tests; First floor: figures not shown
15085Basement: average 4.6 pCi/L, 1,310 tests; First floor: average 3.2 pCi/L, 60 tests
15087Basement: figures not shown
15089Basement: average 5.9 pCi/L, 372 tests; First floor: average 4.5 pCi/L, 57 tests
15131Basement: average 4.4 pCi/L, 1,075 tests; First floor: figures not shown
15137Basement: average 4.6 pCi/L, 782 tests; First floor: average 1.8 pCi/L, 55 tests
15146Basement: average 5.5 pCi/L, 5,878 tests; First floor: average 3.7 pCi/L, 290 tests
15448Basement: figures not shown; First floor: figures not shown
15479Basement: average 5.8 pCi/L, 68 tests; First floor: figures not shown
15501Basement: average 8.6 pCi/L, 914 tests; First floor: average 3.2 pCi/L, 92 tests
15531Basement: average 5.0 pCi/L, 136 tests; First floor: figures not shown
15601Basement: average 5.9 pCi/L, 9,788 tests; First floor: average 4.1 pCi/L, 576 tests
15610Basement: average 7.7 pCi/L, 190 tests; First floor: figures not shown
15611Basement: figures not shown; First floor: figures not shown
15612Basement: figures not shown; First floor: figures not shown
15613Basement: average 10.2 pCi/L, 1,442 tests; First floor: average 6.1 pCi/L, 99 tests
15615Basement: figures not shown; First floor: figures not shown
15616Basement: figures not shown; First floor: figures not shown
15617Basement: figures not shown; First floor: figures not shown
15618Basement: average 4.7 pCi/L, 99 tests; First floor: figures not shown
15619Basement: figures not shown; First floor: figures not shown
15620Basement: figures not shown; First floor: figures not shown
15622Basement: average 11.6 pCi/L, 191 tests; First floor: average 8.9 pCi/L, 89 tests
15623Basement: average 7.9 pCi/L, 67 tests; First floor: figures not shown
15624Basement: figures not shown
15625Basement: figures not shown
15626Basement: average 11.4 pCi/L, 944 tests; First floor: figures not shown
15627Basement: average 5.1 pCi/L, 410 tests; First floor: average 5.1 pCi/L, 60 tests
15628Basement: figures not shown; First floor: figures not shown
15629Basement: figures not shown
15632Basement: average 6.6 pCi/L, 1,839 tests; First floor: average 3.1 pCi/L, 95 tests
15633Basement: figures not shown
15634Basement: average 4.8 pCi/L, 31 tests; First floor: figures not shown
15635Basement: figures not shown
15636Basement: average 6.0 pCi/L, 855 tests; First floor: average 4.1 pCi/L, 31 tests
15637Basement: average 7.6 pCi/L, 134 tests; First floor: figures not shown
15638Basement: figures not shown; First floor: figures not shown
15639Basement: average 5.9 pCi/L, 152 tests; First floor: figures not shown
15640Basement: figures not shown
15641Basement: figures not shown; First floor: figures not shown
15642Basement: average 5.1 pCi/L, 4,782 tests; First floor: average 4.1 pCi/L, 170 tests
15644Basement: average 6.2 pCi/L, 2,198 tests; First floor: average 5.2 pCi/L, 90 tests
15646Basement: figures not shown
15647Basement: figures not shown; First floor: figures not shown
15650Basement: average 5.4 pCi/L, 2,600 tests; First floor: average 3.8 pCi/L, 210 tests
15655Basement: average 3.8 pCi/L, 56 tests; First floor: figures not shown
15656Basement: average 6.1 pCi/L, 847 tests; First floor: average 9.2 pCi/L, 60 tests
15658Basement: average 8.2 pCi/L, 1,194 tests; First floor: average 5.4 pCi/L, 104 tests
15660Basement: figures not shown; First floor: figures not shown
15661Basement: average 4.1 pCi/L, 49 tests; First floor: figures not shown
15662Basement: figures not shown
15663Basement: figures not shown; First floor: figures not shown
15665Basement: average 5.4 pCi/L, 231 tests; First floor: figures not shown
15666Basement: average 4.4 pCi/L, 677 tests; First floor: average 2.1 pCi/L, 149 tests
15668Basement: average 6.8 pCi/L, 4,314 tests; First floor: average 5.0 pCi/L, 215 tests
15670Basement: average 8.1 pCi/L, 189 tests; First floor: figures not shown
15671Basement: average 7.7 pCi/L, 35 tests; First floor: figures not shown
15672Basement: average 5.4 pCi/L, 283 tests; First floor: average 3.0 pCi/L, 43 tests
15674Basement: figures not shown; First floor: figures not shown
15675Basement: average 3.7 pCi/L, 67 tests; First floor: figures not shown
15676Basement: average 6.6 pCi/L, 36 tests; First floor: figures not shown
15677Basement: average 6.0 pCi/L, 60 tests; First floor: figures not shown
15678Basement: average 10.5 pCi/L, 35 tests; First floor: figures not shown
15679Basement: average 6.2 pCi/L, 86 tests; First floor: figures not shown
15680Basement: figures not shown
15681Basement: average 9.0 pCi/L, 241 tests; First floor: figures not shown
15683Basement: average 4.2 pCi/L, 384 tests; First floor: average 4.5 pCi/L, 43 tests
15684Basement: figures not shown; First floor: figures not shown
15687Basement: average 12.4 pCi/L, 97 tests; First floor: figures not shown
15688Basement: figures not shown
15689Basement: figures not shown; First floor: figures not shown
15690Basement: average 5.0 pCi/L, 410 tests; First floor: figures not shown
15691Basement: figures not shown; First floor: figures not shown
15692Basement: average 4.3 pCi/L, 100 tests; First floor: figures not shown
15693Basement: figures not shown; First floor: figures not shown
15695Basement: figures not shown; First floor: figures not shown
15696Basement: figures not shown; First floor: figures not shown
15697Basement: average 4.0 pCi/L, 279 tests; First floor: figures not shown
15698Basement: figures not shown; First floor: figures not shown
15717Basement: average 5.5 pCi/L, 731 tests; First floor: average 6.1 pCi/L, 57 tests
15779Basement: figures not shown; First floor: figures not shown
15923Basement: average 7.1 pCi/L, 48 tests; First floor: figures not shown
15944Basement: average 7.3 pCi/L, 136 tests; First floor: figures not shown
15954Basement: average 10.4 pCi/L, 85 tests; First floor: figures not shown
16229Basement: average 10.9 pCi/L, 458 tests; First floor: average 10.5 pCi/L, 36 tests
  • DEP's report gives the number of tests, the highest result and the average result for each floor tested; it states no period.
  • DEP says the smartest thing to do is to test your home for radon, no matter where you live.
  • A ZIP code that crosses the county line is listed whole; its figures cover all of it.

Measured: Pennsylvania DEP data, Period not stated by DEP.

Radon Action Brief

National Radon Action MonthPre-sale

Westmoreland County's radon brief, in one dated file.

  • Your area's radon record, explained.
  • Your plan to test this week.
  • Fix costs and pros near you.

Save 64%Sale price: $8.99Price after the sale: $25Ends Jan 31Then $25

Get the Westmoreland County BriefSee a free sample

Area data, not a test of the building.

Local help

Westmoreland County, Local resources

Radon testing and mitigation in Westmoreland County

Who tests and fixes radon in Westmoreland County: listed businesses, Pennsylvania's radon program and test kits.

Listed radon businesses with an address in Westmoreland County:

Listed radon professionals by town: New Kensington, Irwin, Derry

What Pennsylvania's program says
Phone
800-237-2366
Licensing of radon professionals
The Radon Certification Act requires DEP to establish by regulation, a certification program for persons conducting radon gas and radon progeny testing, laboratory analysis and mitigation...

What it means

Westmoreland County, Questions

Questions about radon in Westmoreland County

Common questions

8 questions, answered from the figures above

How do I get a radon test in Westmoreland County?

EPA says you can test your home yourself or hire a qualified radon test company, and that either approach takes only a small amount of time and effort. No radon testing business listed on Radon411 has an address in Westmoreland County or names it as a service area yet. The Pennsylvania radon program is the place to ask about certified testers and any test kit offer it runs.

Radon testing: how to test a homeRadon test kits comparedFree and low-cost kits by stateRadon Action Month checklistPennsylvania radon program

Are radon levels high in Westmoreland County?

In 2020, 34.9% of the radon tests reported to CDC for Westmoreland County, Pennsylvania were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.6 pCi/L. That is a share of reported tests, not of homes. EPA places Westmoreland County in Zone 1, highest predicted potential, a predicted average indoor screening level greater than 4 pCi/L. Homes with elevated levels occur in all three zones, so the figures describe the area, not your house. Testing is the only way to know the radon level in a specific building.

Radon levels: what a result meansWhat is radon?Radon levels in Pennsylvania

Who does radon mitigation in Westmoreland County?

No listed mitigator names Westmoreland County as a service area yet; the Pennsylvania directory lists 153 companies. EPA recommends having a qualified contractor fix a home with a radon problem, because lowering high radon levels takes technical knowledge and special skills, and some states require the work to be done by a licensed or certified professional. Your state radon program is the place to check whether Pennsylvania requires one.

Radon mitigation: how it worksRadon mitigation costRadon mitigation systemsMitigators in Pennsylvania

What EPA radon zone is Westmoreland County in?

EPA places Westmoreland County, Pennsylvania in Zone 1, which EPA describes as highest predicted potential for the area. A zone is a prediction for the whole county and never determines whether a particular home should be tested. EPA recommends testing every home regardless of zone.

Should I test my home in Westmoreland County?

Yes. Testing is the only way to know the radon level in a specific building. EPA recommends fixing a home when the radon level is 4 pCi/L or higher. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. How to test a home.

When is the best time of year to test?

EPA says short-term tests stay in the home from 2 to 90 days and that all radon tests should run a minimum of 48 hours; long-term tests stay more than 90 days. EPA's guides do not name a best season: they say radon levels tend to vary from day to day and season to season, so a long-term test is more likely than a short-term test to tell you the year-round average.

What does it cost to test?

EPA's Citizen's Guide calls testing easy and inexpensive, and EPA's Home Buyer's and Seller's Guide says passive short-term and long-term devices are generally inexpensive, while active devices may cost more. No national average price is published for this, so Radon411 does not give one. What testing costs.

Which counties border Westmoreland County?

Westmoreland County borders 8 counties, derived from Census county geometry. Radon potential follows geology rather than county lines, so a bordering county's report can be relevant.

If you own, buy, sell or rent

What these figures mean for each reader, with the guide that covers it

The reported-test figures on this page describe Westmoreland County, Pennsylvania in 2020. They describe tests other people carried out in other buildings, and none of them measures yours.

Westmoreland County in figures

The figures above, said in words

What the published data says about Westmoreland County, in words. A zone and a share of tests describe an area, never the level in any one home.

    • Predicted

      Predicted

      EPA places Westmoreland County in Zone 1, highest predicted potential, as it does 48 other counties of Pennsylvania's 67.

      Of the 8 bordering counties, EPA places Allegheny County, Armstrong County, Butler County and Indiana County in Zone 1 and Cambria County, Fayette County, Somerset County and Washington County in Zone 2.

  • Reported tests

    Measured

    CDC has annual figures for Westmoreland County for 7 years, 2014 to 2020. In 2020, 34.9% of 1,588 reported tests were at or above 4 pCi/L.

    Across those years the share ranged from 30.4% (2018) to 41.6% (2015). Few tests in a year can move it a long way.

  • Local record

    Pennsylvania's radon program is the Radon Division, run by Department of Environmental Protection; its contacts are under Local resources.

    The county's largest incorporated places are Murrysville, Greensburg and New Kensington; the figures here cover them as part of the county.

Products

Westmoreland County, Products

Testing and mitigation products

Whatever the figures for Westmoreland County show, only a test tells you about one home.

Test kits and monitors42

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Westmoreland County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Westmoreland County

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5

Mitigation

3

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Westmoreland County, Bordering counties

Counties bordering Westmoreland County

Calculated by Radon411
Why bordering counties matter

8 counties share a boundary with Westmoreland County, computed from Census county geometry. Radon potential follows geology rather than county lines, so a bordering county’s report can be worth reading alongside this one.

Westmoreland County, Cities and towns

Cities and towns in Westmoreland County

The radon figures on this page are for Westmoreland County as a whole. They do not differ by city or town.

  • Murrysville
  • New Kensington
  • Lower Burrell
  • Jeannette
  • Latrobe
  • Monessen
  • Vandergrift
  • Arnold
  • Scottdale
  • Mount Pleasant
  • Irwin
  • Manor
  • Trafford (part)
  • Youngwood
  • Delmont
  • West Newton
  • Derry
  • New Stanton
  • Southwest Greensburg
  • South Greensburg
  • North Belle Vernon
  • Ligonier
  • West Leechburg
  • Avonmore
The other 19 places in Westmoreland County
  • Export
  • North Irwin
  • Oklahoma
  • New Florence
  • Penn
  • East Vandergrift
  • Sutersville
  • Hyde Park
  • New Alexandria
  • Bolivar
  • Seward
  • Madison
  • Smithton
  • Hunker
  • Arona
  • Youngstown
  • Laurel Mountain
  • Adamsburg
  • Donegal

44 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files. “(part)” marks a place that extends into another county.

Westmoreland County, Next steps

What to do next

  1. LearnKnow what radon isWhat radon is, how it gets indoors, and why a county zone is not a reading for your home.Learn about radon
  2. TestTest the building you live inShort-term or long-term, where the device goes, and closed-house conditions.How to test
  3. FixBring a high level downHow a mitigation system works, and the retest that confirms it.How mitigation works
  4. Find a proHire a certified professionalMeasurement and mitigation professionals by state, with their certifications.Find a professional

Informational. Follow EPA guidance. EPA says all radon tests should be taken for a minimum of 48 hours, with windows and doors closed from 12 hours before a short-term test.