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Locations and reports

Radon in Allentown, Pennsylvania

EPA puts Lehigh County, where Allentown 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
39.8%of 3,103 tests reported to CDC for Lehigh 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

Allentown, What is published

What is published for Allentown

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 Allentown, so every radon figure on this page belongs to a county and is labelled with it. Only a test tells you about one home.

Lehigh County has an EPA zone and its own CDC test figures, shown below. About 126,044 people live in Allentown.

Allentown, Counties

The county Allentown 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.

Lehigh CountyZone 1Highest predicted potential

39.8%
Reported tests at or above 4 pCi/L, 2020
2.7 pCi/L
Median reported result
3,103 tests
Tests reported to CDC
7
Annual years on file

The median reported pre-mitigation result for 2020 was 2.7 pCi/L in Lehigh 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 Allentown, 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 Allentown BriefSee a free sample

Area data, not a test of the building.

Local help

Allentown, Professionals

Radon professionals listed in Allentown

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

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

Allentown, Local resources

Local resources for Allentown

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

What it means

Allentown, Questions

Questions about radon in Allentown

What radon zone is Allentown in?

EPA's Map of Radon Zones classifies counties, not cities. Lehigh 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 Allentown's counties?

For 2020, the share of radon tests reported to CDC that were at or above 4 pCi/L was 39.8% in Lehigh County (3,103 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 Allentown?

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 Lehigh County, the county Allentown lies in.