Is Radon a Problem Where I Live in Deleware?


Radon is a lesser problem in the state of Deleware. The average level for radon in Deleware is 3.9 pCi/L which is much higher than the national average of 1.3 pCi/L. Radon is a problem in Deleware, just like it is in every US state. There aren’t any counties in Deleware that have been flagged by the EPA for having higher levels of radon than what is common. That being said, radon is still problem in this state.

While there aren’t any counties the EPA noted for being a major risk for radon, it’s still an issue. If you choose to run your own radon test, please visit this article to read about and pick up either the radon test kit that we recommend or our favorite radon detectors.

There is just one county that is in the EPA’s Zone Two (radon levels between 2-4 pCi/L) range, which is an area where radon is still a problem, but is not quite as bad as it is in the Zone One areas. It’s recommended that you test your home’s air for radon if you’re in a Zone Two area.

Finally, there are 2 counties that the EPA classified as Zone Three (radon levels between 0-1.9 pCi/L) range. Radon is more of a minor issue in these counties, but that does not necessarily mean that you’re out of the woods. There are plenty of counties that the EPA said are in Zone Three that tested out and have some really high average radon levels. There are plenty of homes that have really high levels of radon sprinkled throughout the whole nation. The only way to find out if your home has a radon issue is to test for it.

At the end of the day, counties that are marked as Zone One by the EPA have an increased risk of having a radon problem that’s really high, areas that are Zone Two have a higher risk of having a mid-level radon threat, and Zone Three counties have the lowest risk. Whatever zoning you’re in, it’s wisest to test for radon in your home. The zone designations serve as more of an idea on what you might be able to expect from your radon test results.

Here’s a county by county breakdown of Deleware’s radon levels, as per the EPA and radon.com. If you’d like to see the nationwide data that we collected presented on tables, then you can do so on our article here.

Is Radon a Problem in Kent County?

Radon is a minor problem in Kent County, Deleware according to its average radon level. Radon levels below 2 pCi/L are hard to mitigate and is less dangerous to one’s health than higher levels. However, it is still advisable to test for your home’s radon levels as radon can be a major issue in one home and not in another, even in areas where the average radon level is low.

The EPA labeled it as a “Zone Three” County. This means that they found radon levels to be below 2 pCi/L. At these levels, it is still advisable to test for radon levels in your home. Radon levels below 2 pCi/L are hard to reduce, but radon is a toxic gas, so it’s worth doing what you can to limit your exposure to it. At 2 pCi/L and less, radon is a low-level threat to your health, but is not one you should ignore.

Tests from Radon.com find that the average radon level in this county is under 2 pCi/l. While this level of radon can be difficult to mitigate and poses a lower health risk than heightened levels of radon, it is still worth testing your own home’s air for radon. There can be homes with high radon levels even in a region with an overall lower radon average. 

Is Radon a Problem in New Castle County?

Radon is a problem in New Castle County, Deleware according to its average radon level. Radon levels between 2 and 4 pCi/L are known to cause lung cancer. If you live in a region with this average level of radon, you should test your home’s air immediately. If your results come back and are above 2 pCi/L, you should invest in a radon mitigation system to protect your health. 

The EPA labeled it as a “Zone Two” County. This means that they found radon levels to be between 2 and 4 pCi/L. At these levels, it’s advisable to seek ways to mitigate radon levels in your home. At 2-4 pCi/L, radon is a mid-level threat to your health and is one you shouldn’t ignore. 

Tests from Radon.com find the average radon level is between 2 and 4 pCi/L. Radon levels between 2 and 4 pCi/L are known to cause cancer and can be lessened with a radon mitigation system. If you live in a region with this average radon level, then you should test for radon in your home. If your radon level is above 2, then a radon mitigation system can help you protect your health. 

Is Radon a Problem in Sussex County?

Radon is a minor problem in Sussex County, Deleware according to its average radon level. Radon levels below 2 pCi/L are hard to mitigate and is less dangerous to one’s health than higher levels. However, it is still advisable to test for your home’s radon levels as radon can be a major issue in one home and not in another, even in areas where the average radon level is low.

The EPA labeled it as a “Zone Three” County. This means that they found radon levels to be below 2 pCi/L. At these levels, it is still advisable to test for radon levels in your home. Radon levels below 2 pCi/L are hard to reduce, but radon is a toxic gas, so it’s worth doing what you can to limit your exposure to it. At 2 pCi/L and less, radon is a low-level threat to your health, but is not one you should ignore.

Tests from Radon.com find that the average radon level in this county is under 2 pCi/l. While this level of radon can be difficult to mitigate and poses a lower health risk than heightened levels of radon, it is still worth testing your own home’s air for radon. There can be homes with high radon levels even in a region with an overall lower radon average. 

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Jonathon Silva

Jonathan Silva is our longtime Air Purifier Essentials author. He has been writing on air purification technologies for his entire professional career.

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