Radon levels in Rhode Island

Verified county-level radon indicators are available for 5 Rhode Island counties. Select a county for its source period and sample details.

High results are most common in Washington County (39%) and least common in Bristol County (15%)Share of tests at or above 4 pCi/L by county · Radon test results from laboratories, 2008–2017 · 5 of 5 counties have data
Bristol County: 15% of tests at or above 4 pCi/L · 1,867 testsKent County: 26% of tests at or above 4 pCi/L · 7,657 testsNewport County: 24% of tests at or above 4 pCi/L · 2,792 testsProvidence County: 17% of tests at or above 4 pCi/L · 17,655 testsWashington County: 39% of tests at or above 4 pCi/L · 7,903 tests
  • Under 10%
  • 10–20%
  • 20–30%
  • 30–40%
  • 40% or more
  • No data

Counties

CountyTests% ≥ 4 pCi/LMedian (pCi/L)EPA zone (1993)Source
Bristol County1,86715%1.6Zone 3Radon test results from laboratories through 2017
Kent County7,65726%2.1Zone 1Radon test results from laboratories through 2017
Newport County2,79224%1.9Zone 2Radon test results from laboratories through 2017
Providence County17,65517%1.6Zone 2Radon test results from laboratories through 2017
Washington County7,90339%3.0Zone 1Radon test results from laboratories through 2017

Test your home

County figures show how often tests come back high, not the level in your home. Only a test tells you that: see how to test for radon.

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