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Radon in Harrisburg, Pennsylvania

Harrisburg, Pennsylvania lies in Dauphin County, which EPA places in Zone 1, highest predicted potential. Radon data is published by county, so this page reads Dauphin County's figures.

PennsylvaniaAbout 50,522 people

What this means for you

  • Your area: EPA rates Dauphin County, where Harrisburg is, Zone 1, the highest of its three radon zones. That is a prediction for the whole county, and homes with elevated levels occur in all three zones.
  • Local tests: Of 2,986 radon tests reported to CDC for Dauphin County (2020), 36.9% were at or above 4 pCi/L, EPA's action level.
  • Your home: The only way to know your home’s level is to test it.
How to testFind a certified tester

pCi/L (picocuries per liter) is the unit radon is measured in. EPA recommends fixing a home at 4 pCi/L or above, its action level.

Harrisburg, What is published

What is published for Harrisburg

Information:

Radon data is published by county, not by city

Radon data is published by county, not by city. EPA assigns radon zones to counties, and CDC publishes radon test figures by county. Neither publishes a figure for Harrisburg, so every radon figure on this page belongs to a county and is labelled with it. Only a test tells you about one home.

Dauphin County has an EPA zone and its own CDC test figures, shown below. About 50,522 people live in Harrisburg.

Harrisburg, Counties

The county Harrisburg lies in

Measured

Each county's own EPA zone and its own published CDC figures for 2020, the newest period any of them has. A county without a figure for that period is shown without one, never with a figure from another year.

Dauphin CountyZone 1Highest predicted potential

36.9%
Reported tests at or above 4 pCi/L, 2020
2.0 pCi/L
Median reported result
2,986 tests
Tests reported to CDC
7
Annual years on file

The median reported pre-mitigation result for 2020 was 2.0 pCi/L in Dauphin County.

CDC counts radon tests that were reported to it, not homes, and figures from few tests can swing widely from year to year. Each county’s report has its full history.

Predicted: EPA Map of Radon Zones, by county. Measured: CDC tracking data, by county, 2020.

Harrisburg, Professionals

Radon professionals listed in Harrisburg

Businesses whose listed city is Harrisburg, from the state registries and listings in the Radon411 directory, with the same business and certification status the directory shows.

9 listings with Harrisburg as the city. See every listing in Harrisburg, or all radon professionals in Pennsylvania.

Harrisburg, Local resources

Local resources for Harrisburg

Who to ask in Pennsylvania: the state's radon program, test kits and professionals.

Radon Division

Department of Environmental Protection

Pennsylvania’s radon program answers questions about testing, mitigation and the rules where you live.

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...
Visit the program's page(opens in a new tab)

Test kits

The program says: Through an EPA-funded program, hospitals give parents of newborn children a packet of information which includes a coupon for a free radon test kit from the DEP.

Free and low-cost kitsCompare kits

Radon professionals

9 listings cover Harrisburg.

Professionals in Pennsylvania

Harrisburg, Questions

Questions about radon in Harrisburg

What radon zone is Harrisburg in?

EPA's Map of Radon Zones classifies counties, not cities. Dauphin County is in Zone 1 (highest predicted potential). A zone is a prediction for a whole county and never tells you the level in one home.

How many radon tests come back high in Harrisburg's counties?

For 2020, the share of radon tests reported to CDC that were at or above 4 pCi/L was 36.9% in Dauphin County (2,986 tests). Each is that county's own figure, counting tests reported to CDC, not homes. Radon411 does not average or combine them into a figure for the city.

Should I test my home in Harrisburg?

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.

The answers use the published figures of Dauphin County, the county Harrisburg lies in.

Harrisburg, Keep reading

Keep reading

Harrisburg / Next steps

What to do next