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Radon in Harrisburg, Pennsylvania

EPA puts Dauphin County, where Harrisburg is, 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
36.9%of 2,986 tests reported to CDC for Dauphin County (2020) were at or above 4 pCi/L
Your home
Test to knowNo area figure here is a reading of your home.

The data

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.

Radon Action Brief

National Radon Action MonthPre-sale

The radon brief for Harrisburg, 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 Harrisburg BriefSee a free sample

Area data, not a test of the building.

Local help

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.

5 listings with Harrisburg as the city. See radon mitigation and testing in Harrisburg, or all radon professionals in Pennsylvania.

Harrisburg, Local resources

Local resources for Harrisburg

Who to ask in Pennsylvania: its radon program, test kits and professionals.

What it means

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.