Ecosense Radon Map: Are You Living in a High Radon Area?
Radon is the leading cause of lung cancer among non-smokers in the United States, yet many homeowners don’t know if they live in a high radon area or if there is any health risk for them.
Is high radon mainly a regional problem? Are there certain states or provinces where radon is more common? And if you live outside those high radon areas, does that mean your home is safe?
To help answer these questions, we created the Ecosense Radon Map - a simple, interactive, data-driven tool that helps you understand radon trends in your area and see how your region compares to others.
But before you zoom in on your location, there’s one important thing to understand: Even in areas classified as “Low Risk”, homes testing at or above the EPA Radon Action Level have been found. Radon risk varies not only by region but also from one home to another. The only way to know your level is to test.
What Is the Ecosense Radon Map?
The Ecosense Radon Map brings together publicly available radon data. The map integrates data from the CDC Environmental Public Health Tracking Network, participating state health departments, and anonymized real-world measurement insights from Ecosense, enabling you to:
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Explore the color-coded interactive radon map by county
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Compare your county to national averages
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Check radon levels nearby
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Understand the meaning of the average radon levels
It’s designed to make radon risk easier to understand. You can explore your neighborhood, check areas where friends or family live, and learn about how radon levels vary across the USA. But the map is not a diagnostic tool; it’s an awareness tool.
Elevated Levels Aren’t Limited to High Radon Areas
Here’s where many homeowners get surprised. Even in areas traditionally considered “low risk,” individual homes can still have dangerously high radon levels. Why does this happen?
Because your indoor radon levels are influenced by local conditions, including:
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Soil pressure and permeability
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Foundation cracks or openings
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Construction materials
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Ventilation patterns
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Weather and seasonal changes
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How the home is used
Two homes on the same street can have completely different radon levels. That’s why regional averages can’t predict what’s happening inside your home.
How the Ecosense Radon Map Helps You Take Action
The Ecosense Radon Map helps answer important awareness questions:
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Is radon common in my region?
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Are nearby homes reporting elevated radon levels?
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Should I be more proactive about radon testing?
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Do my friends or family live in high radon areas?
It’s a powerful way to start the conversation about indoor air safety and to share information that many people have never seen before. You can send your local map view to neighbors, family members, or community groups to help spread awareness and encourage each household to Check their radon risk by ZIP code.
The Most Important Truth About Radon Risk
While maps show common patterns, they cannot tell you what’s happening inside your home. Testing is the only way to know your actual radon level.
Radon is an invisible, odorless, and naturally occurring radioactive gas. When it accumulates indoors over time, exposure can increase the risk of lung cancer, especially for children, pets, and families spending long hours at home. With the amount of time we spend indoors, especially now in the work-from-home era, knowing your radon levels has never been more critical.
Radon levels fluctuate with the seasons, weather changes, ventilation changes, after home renovations, daily living patterns, and simply how you “use” the home. Radon levels can change hourly, which means a single test may not capture your true long-term exposure. One-time testing does not show radon fluctuations and doesn’t always reflect long-term exposure.
Because radon levels change over time, many homeowners choose Continuous Home Radon Monitors to track trends, detect spikes early, and confirm their mitigation systems continue working effectively.
From Awareness To Action: Test Your Home For Radon
The Ecosense Radon Map helps you understand the bigger picture by showing where elevated radon is common.
But your home’s safety is your responsibility. After checking your radon risk by ZIP code, make sure to test your home, because every home is unique.
Explore the Ecosense Radon Map and see how radon levels compare where you live. If you haven’t tested your home yet, today is the best time to start.
FAQ:c
1. Is radon only a problem in certain states or regions?
No. While some regions historically report higher average radon levels, radon can be found in any home, in any state or province. Even areas classified as “low risk” can still have homes with elevated radon levels above the EPA Action Level. Regional patterns can show trends, but they cannot predict what’s happening inside an individual home. Testing is the only way to know your actual exposure.
2. Can the Ecosense Radon Map tell me if my home is safe?
No. The Ecosense Radon Map is an awareness and educational tool, not a substitute for the test. It shows regional averages and trends based on available data, but it cannot measure the radon in your specific home. Because radon varies from house to house, even on the same street, home testing is always necessary to determine your personal risk.
3. Why can homes in the same neighborhood have different radon levels?
Radon levels depend on many local and structural factors that vary from one home to another. These include soil conditions, foundation cracks, building materials, ventilation patterns, weather changes, and how the home is used. Even small differences in construction or airflow can significantly impact how radon enters and accumulates indoors.
4. How accurate are regional average radon levels?
Regional averages are useful for understanding trends and raising awareness, but they don’t reflect individual exposure. An average level represents many homes combined, which means some homes may have much higher levels than the reported average. That’s why averages should be used as a guide, never a substitute for testing.
5. What should I do if I live in a high radon area?
If you live in a high radon area, the most important step is to test your home. Since the regional average level doesn’t guarantee your home’s result will be the same, you need to test in your own home. If results are elevated (4.0 pCi/L or higher), install a radon mitigation system to reduce exposure. Because radon levels can change daily and seasonally, ongoing or continuous monitoring helps ensure your home stays safe year-round, even with a mitigation system being installed.