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Radon Levels in Rockland County, New York

EPA puts Rockland County in Zone 3, its lowest radon zone. Homes with elevated levels occur in all three zones, so only a test measures yours.

Data checked By Radon411Methodology

Predicted
Zone 3Lower predicted potential
Measured
0.0%of 15 tests reported to CDC (2023) were at or above 4 pCi/L
Your home
Test to knowNo area figure here is a reading of your home.
How to test this homeFind a certified tester

The data

Rockland County, At a glance

Rockland County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

This is a county-level geologic prediction. It is not a measurement of any address, and houses with elevated radon are found in all three zones.

What EPA predicts hereScreening level, geology

EPA predicts an average indoor of less than 2 pCi/L (less than 75 Bq/m³) across the county as a whole.

USGS geologic potential: Low across 56% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Rockland County, 2023

Tests reported
15
At or above 4 pCi/L
0.0%
Median result
1.0 pCi/L
Reported results by concentration band, Rockland County, 2023
Under 2 pCi/L: 67%2 to 4 pCi/L: 33%4 pCi/L and above: 0%

Of 15 pre-mitigation tests reported to CDC, not homes in this area.

Reported results by concentration band, Rockland County, 2023: data table
Result bandTests MeasuredShare Measured
Under 2 pCi/L1066.7%
2 to 4 pCi/L533.3%
4 pCi/L and above00.0%

CDC publishes this figure only for counties here, so there is no state or national number to compare Rockland County, New York with.

What these figures count

Distribution of radon tests reported to CDC, not this house. People testing before a sale, or because they suspect a problem, are over-represented in any reported testing data.

The figures at the top are for 2023: a percentage there is a share of radon tests reported to CDC for Rockland County in 2023, and a percentage in a view below is a share of the tests reported for the year or period it names. It is not a share of homes in Rockland County, and it is not a random sample: it counts only the tests people chose to run and that were reported.

CDC works out the shares and the median over pre-mitigation tests, counting a test not marked as before or after mitigation as one of them (15 for 2023). The median is the middle result of those tests, not of buildings.

Rockland County's own published CDC figures beside those of the counties that border it, for the same period.

Each figure is that county’s own published CDC figure for 2023, counting radon tests reported to CDC, not homes. Rockland County is this page. Nothing is averaged or combined across counties. The test count beside each county is CDC’s published number of pre-mitigation tests behind its figures. Figures from few tests can swing widely from year to year. No published CDC figure for 2023: Bergen County, NJ; Passaic County, NJ. Every New York county’s own figure is in the New York county table.

Measured: CDC tracking data. Figure above: 2023. Measured data period: 2005 to 2023 (every CDC figure on file).

Rockland County, State data

New York's own radon test data

Measured

What New York's own agencies publish about radon tests in Rockland County, with their period. These are not CDC's figures and are never added to them.

MeasuredState figures, not CDC's

What the New York State Department of Health reports for Rockland County

Indoor air radon testing data (Environmental Public Health Tracker): short-term charcoal canister tests requested through the NYSDOH Radon Program, presented as five-year rolling averages. Period: 2015-2019. The publisher also lists 15 earlier periods.

Share at or above 4 pCi/L

9%

Average result

2.0 pCi/L

Tests behind these figures

73.6 tests a year on average

  • Every figure is a five-year rolling average: the average result is the rolling average of each year's mean, and the test count is an average per year.
  • The data only include tests requested through the NYSDOH Radon Program, and therefore may not capture all radon tests performed in a county.
  • The data include both screening tests and post-mitigation tests, as it is not always possible to tell them apart.
  • Radon testing by homeowners is optional in New York, so the values may not be representative of every home in the county.
  • These figures describe tests reported to the New York State Department of Health in this area. They count a different set of tests than CDC's figures and are not a reading of any one home.

Measured: New York State Department of Health data, 2015-2019.

Radon Action Brief

National Radon Action MonthPre-sale

Rockland County's radon brief, 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 Rockland County BriefSee a free sample

Area data, not a test of the building.

Local help

Rockland County, Local resources

Radon testing and mitigation in Rockland County

Who tests and fixes radon in Rockland County: listed businesses, New York's radon program and test kits.

What New York's program says
Phone
518-402-7556
Email
radon@health.ny.gov
Licensing of radon professionals
NYS does not certify or license radon testers.

What it means

Rockland County, Questions

Questions about radon in Rockland County

Common questions

8 questions, answered from the figures above

Are radon levels high in Rockland County?

In 2023, 0.0% of the radon tests reported to CDC for Rockland County, New York were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.0 pCi/L. That is a share of reported tests, not of homes. EPA places Rockland County in Zone 3, lower predicted potential, a predicted average indoor screening level less than 2 pCi/L. Homes with elevated levels occur in all three zones, so the figures describe the area, not your house. Testing is the only way to know the radon level in a specific building.

Radon levels: what a result meansWhat is radon?Radon levels in New York

How do I get a radon test in Rockland County?

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. No radon testing business listed on Radon411 has an address in Rockland County or names it as a service area yet. The New York radon program is the place to ask about certified testers and any test kit offer it runs.

Radon testing: how to test a homeRadon test kits comparedFree and low-cost kits by stateRadon Action Month checklistNew York radon program

Who does radon mitigation in Rockland County?

No listed mitigator names Rockland County as a service area yet; the New York directory lists 88 companies. 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. Your state radon program is the place to check whether New York requires one.

Radon mitigation: how it worksRadon mitigation costRadon mitigation systemsMitigators in New York

What EPA radon zone is Rockland County in?

EPA places Rockland County, New York in Zone 3, which EPA describes as lower predicted potential for the area. A zone is a prediction for the whole county and never determines whether a particular home should be tested. EPA recommends testing every home regardless of zone.

Should I test my home in Rockland County?

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.

When is the best time of year to test?

EPA says short-term tests stay in the home from 2 to 90 days and that all radon tests should run a minimum of 48 hours; long-term tests stay more than 90 days. EPA's guides do not name a best season: they say radon levels tend to vary from day to day and season to season, so a long-term test is more likely than a short-term test to tell you the year-round average.

What does it cost to test?

EPA's Citizen's Guide calls testing easy and inexpensive, and EPA's Home Buyer's and Seller's Guide says passive short-term and long-term devices are generally inexpensive, while active devices may cost more. No national average price is published for this, so Radon411 does not give one. What testing costs.

Which counties border Rockland County?

Rockland County borders 5 counties, derived from Census county geometry. Radon potential follows geology rather than county lines, so a bordering county's report can be relevant.

If you own, buy, sell or rent

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

The reported-test figures on this page describe Rockland County, New York in 2023. They describe tests other people carried out in other buildings, and none of them measures yours.

Rockland County in figures

The figures above, said in words

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

    • Predicted

      Predicted

      EPA places Rockland County in Zone 3, lower predicted potential, as it does 14 other counties of New York's 62.

      Of the 5 bordering counties, EPA places Orange County and Putnam County in Zone 1, Bergen County, NJ and Passaic County, NJ in Zone 2 and Westchester County in Zone 3.

  • Reported tests

    Measured

    CDC has annual figures for Rockland County for 10 years, 2014 to 2023. In 2023, 0.0% of 15 reported tests were at or above 4 pCi/L.

    Across those years the share ranged from 0.0% (2023) to 16.3% (2017). Few tests in a year can move it a long way.

  • Local record

    New York's radon program is the Radon Program, run by New York State Department of Health; its contacts are under Local resources.

    The county's largest incorporated places are Spring Valley, Haverstraw and Suffern; the figures here cover them as part of the county.

Products

Rockland County, Products

Testing and mitigation products

Whatever the figures for Rockland County 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 Rockland County homes, compared

Testing

5

Mitigation

3

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Rockland County, Bordering counties

Counties bordering Rockland County

Calculated by Radon411
Why bordering counties matter

5 counties share a boundary with Rockland County, computed from Census county geometry. Radon potential follows geology rather than county lines, so a bordering county’s report can be worth reading alongside this one.

Rockland County, Cities and towns

Cities and towns in Rockland County

The radon figures on this page are for Rockland County as a whole. They do not differ by city or town.

  • Spring Valley
  • Haverstraw
  • Suffern
  • West Haverstraw
  • Chestnut Ridge
  • Airmont
  • New Square
  • Nyack
  • Wesley Hills
  • Kaser
  • New Hempstead
  • Montebello
  • Pomona
  • Sloatsburg
  • Piermont
  • Upper Nyack
  • Hillburn
  • Grand View-on-Hudson
  • South Nyack

19 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files.

Rockland County, 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.