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Rhode Island Radon Map and Levels by County

Rhode Island's counties span all three EPA radon zones. Homes with elevated levels occur in all three zones, so only a test measures yours.

Data checked By Radon411Methodology

Predicted
2 of 5counties in Zone 1, EPA's highest radon zone
Measured
By countyCDC publishes Rhode Island's test figures by county: 5 of 5 counties have one.
Your home
Test to knowNo area figure here is a reading of your home.
How to test this homeFind a certified tester

The data

Rhode Island, At a glance

Rhode Island at a glance

Predicted: EPA radon zone

5 of 5 counties classified

EPA classifies counties, not states. Of the 5 counties in Rhode Island with a zone, 2 are in Zone 1, 2 in Zone 2 and 1 in Zone 3.

  • Zone 1: Highest predicted potentialgreater than 4 pCi/L2 of 5 counties · 40.0%
  • Zone 2: Moderate predicted potential2 to 4 pCi/L2 of 5 counties · 40.0%
  • Zone 3: Lower predicted potentialless than 2 pCi/L1 of 5 counties · 20.0%

An EPA radon zone describes predicted potential across a whole county. It is not intended to determine whether any individual home should be tested, and homes with elevated levels occur in all three zones. EPA recommends testing every home regardless of zone, and testing is the only way to know the radon level in a specific building.

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

CDC test figures, county by county

CDC publishes Rhode Island's radon test figures by county: 5 of its 5 counties have one. Each one's share is in the county list.

Rhode Island, Counties

Rhode Island counties by EPA zone

Predicted

Rhode Island's radon map, then all 5 counties by the zone EPA predicts for each, highest reported share of tests at or above 4 pCi/L first. Each has its own report.

Rhode Island radon map by county: EPA radon zones. Map of Rhode Island's 5 counties shaded by EPA radon zone: Zone 1 in red-orange, Zone 2 in amber, Zone 3 in pale sand. 2 in Zone 1, 2 in Zone 2, 1 in Zone 3.
Rhode Island radon map by countyEPA radon zones for Rhode Island's counties: 2 counties in Zone 1, 2 counties in Zone 2, 1 county in Zone 3.Predicted potential for each county, not a reading of any home. Homes with elevated levels of radon have been found in all three zones.

Local help

Rhode Island, Local resources

Local resources in Rhode Island

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

What Rhode Island's program says
Email
doh.radon@health.ri.gov
Licensing of radon professionals
This page lists Radon Testing businesses that are licensed by the Rhode Island Department of Health.

Radon Action Brief

National Radon Action MonthPre-sale

The radon brief for your Rhode Island county, 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 your Rhode Island county's BriefSee a free sample

Area data, not a test of the building.

What it means

Rhode Island, Questions

Questions about radon in Rhode Island

Common questions

9 questions, answered from the figures above

Is radon a problem in Rhode Island?

EPA's Map of Radon Zones places 2 of the 5 Rhode Island counties it classifies in Zone 1, the highest predicted potential, 2 in Zone 2 and 1 in Zone 3. An EPA radon zone describes predicted potential across a whole county. It is not intended to determine whether any individual home should be tested, and homes with elevated levels occur in all three zones. EPA recommends testing every home regardless of zone, and testing is the only way to know the radon level in a specific building.

Rhode Island on the radon mapRadon levels by state

Who does radon mitigation in Rhode Island?

Radon411's Rhode Island directory lists 35 radon businesses for testing, mitigation or both, each with the licensing list it was read from. EPA recommends having a qualified contractor fix a home with a radon problem, because lowering high radon levels takes technical knowledge and special skills, and some states require the work to be done by a licensed or certified professional.

How radon mitigation worksWhat mitigation costsRadon professionals in Rhode Island

How do I get a radon test in Rhode Island?

EPA says you can test your home yourself or hire a qualified radon test company, and that either approach takes only a small amount of time and effort. The Rhode Island radon program is the place to ask about certified testers and any test kit offer it runs.

How to test a homeFree and low-cost kits by stateRhode Island radon program

Which Rhode Island counties are in EPA radon Zone 1?

2 counties are in Zone 1: Kent County, Washington County. Zone 1 is EPA's class for highest predicted potential, a predicted average indoor screening level greater than 4 pCi/L. A zone is a prediction for a county, not a measurement of any home.

Radon in Kent CountyRadon in Washington County

Which Rhode Island counties have the highest radon?

5 of Rhode Island's 5 counties have an EPA radon zone published here. Radon411 will not rank counties on data it does not hold, and a zone is a prediction for an area rather than a measurement of any building.

What share of radon tests in Rhode Island are high?

CDC has published no statewide radon testing statistics for Rhode Island, so we cannot give a figure. Where CDC does publish one, the percentage describes radon tests reported to CDC, not homes.

Which EPA region is Rhode Island in?

Rhode Island is in EPA Region 1: New England.

Do I need to test my home in Rhode Island?

Yes, wherever you live in the state. 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.

Why does this page show coverage rather than one radon level for Rhode Island?

A statewide figure averages counties with very different geology and very different numbers of reported tests, so it hides more than it shows. The county report is the level at which the EPA zone, the geologic potential and the reported testing statistics are actually published, which is why the county table above links to every one of them.

If you own, buy, sell or rent

What these figures mean for each reader, with the guide that covers it

The zone counts on this page describe counties across Rhode Island. They are predictions for areas, and none of them measures your building.

Rhode Island in figures

The figures above, said in words

What the published data says about Rhode Island, in words. A zone and a share of tests describe an area, never the level in any one home.

    • Predicted

      Predicted

      EPA places 2 of Rhode Island's 5 counties in Zone 1, 2 in Zone 2 and 1 in Zone 3.

      The Zone 1 counties: Kent County and Washington County.

    • Compared

      Calculated by Radon411

      40% of Rhode Island's counties with a zone on file are in Zone 1, a larger share than across all U.S. counties (34%). It is a share of counties, not of land, people or homes.

  • Reported tests

    Measured

    CDC has no statewide testing figure for Rhode Island on file here.

    5 of the 5 counties have a published county figure; the most tests in each one's latest year were reported for Providence County (108 tests in 2018), Washington County (90 tests in 2018) and Kent County (10 tests in 2018).

Rhode Island's radon program is the Radon Control Program, run by Rhode Island Department of Health; its contacts are under Local resources.

Products

Rhode Island, Products

Testing and mitigation products

Whatever the figures for Rhode Island show, only a test tells you about one home.

Test kits and monitors42

See all products

As an Amazon Associate, Radon411 earns from qualifying purchases.

Best radon monitors for Rhode Island homes, compared

Testing

5

Mitigation

3

Explore

Rhode Island, Next steps

What to do next

  1. LearnKnow what radon isWhat radon is, how it gets indoors, and why a county zone is not a reading for your home.Learn about radon
  2. TestTest the building you live inShort-term or long-term, where the device goes, and closed-house conditions.How to test
  3. FixBring a high level downHow a mitigation system works, and the retest that confirms it.How mitigation works
  4. Find a proHire a certified professionalMeasurement and mitigation professionals by state, with their certifications.Find a professional

Informational. Follow EPA guidance. EPA says all radon tests should be taken for a minimum of 48 hours, with windows and doors closed from 12 hours before a short-term test.