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Radon Levels in Winn Parish, Louisiana

EPA puts Winn Parish 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 156 tests reported to CDC (2020) 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

Winn Parish, At a glance

Winn Parish 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 parish as a whole.

USGS geologic potential: Low across 100% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Winn Parish, 2020

Tests reported
156
At or above 4 pCi/L
0.0%
Median result
0.2 pCi/L
Reported results by concentration band, Winn Parish, 2020
Under 2 pCi/L: 94%2 to 4 pCi/L: 6%4 pCi/L and above: 0%

Of 156 pre-mitigation tests reported to CDC, not homes in this area.

Reported results by concentration band, Winn Parish, 2020: data table
Result bandTests MeasuredShare Measured
Under 2 pCi/L14794.2%
2 to 4 pCi/L95.8%
4 pCi/L and above00.0%
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 2020: a percentage there is a share of radon tests reported to CDC for Winn Parish in 2020, 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 Winn Parish, 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 (156 for 2020). The median is the middle result of those tests, not of buildings. CDC also reports the number of buildings tested (3), a different count, so the two totals are not interchangeable.

Measured: CDC tracking data. Figure above: 2020. Measured data period: 2005 to 2020 (every CDC figure on file).

Radon Action Brief

National Radon Action MonthPre-sale

Winn Parish'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 Winn Parish BriefSee a free sample

Area data, not a test of the building.

Local help

Winn Parish, Local resources

Radon testing and mitigation in Winn Parish

Who tests and fixes radon in Winn Parish: listed businesses, Louisiana's radon program and test kits.

What it means

Winn Parish, Questions

Questions about radon in Winn Parish

Common questions

8 questions, answered from the figures above

Are radon levels high in Winn Parish?

In 2020, 0.0% of the radon tests reported to CDC for Winn Parish, Louisiana were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.2 pCi/L. That is a share of reported tests, not of homes. EPA places Winn Parish 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 Louisiana

How do I get a radon test in Winn Parish?

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 Winn Parish or names it as a service area yet. The Louisiana 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 checklistLouisiana radon program

Who does radon mitigation in Winn Parish?

Radon411 has no radon business listed for Louisiana yet. 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 Louisiana requires one.

Radon mitigation: how it worksRadon mitigation costRadon mitigation systemsLouisiana radon program

What EPA radon zone is Winn Parish in?

EPA places Winn Parish, Louisiana 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 Winn Parish?

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 Winn Parish?

Winn Parish borders 6 parishes, 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 Winn Parish, Louisiana in 2020. They describe tests other people carried out in other buildings, and none of them measures yours.

Winn Parish in figures

The figures above, said in words

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

    • Predicted

      Predicted

      EPA places Winn Parish in Zone 3, lower predicted potential, as it does 63 other parishes of Louisiana's 64.

      Of the 6 bordering parishes, EPA places Bienville Parish, Caldwell Parish, Grant Parish, Jackson Parish, LaSalle Parish and Natchitoches Parish in Zone 3.

  • Reported tests

    Measured

    CDC has one annual figure for Winn Parish on file here, for 2020: 0.0% of 156 reported tests were at or above 4 pCi/L.

  • Local record

    Louisiana's radon program and its page are under Local resources.

    The county's largest incorporated places are Winnfield, Dodson and Tullos; the figures here cover them as part of the county.

Products

Winn Parish, Products

Testing and mitigation products

Whatever the figures for Winn Parish 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 Winn Parish homes, compared

Testing

5

Mitigation

3

Explore

Winn Parish, Bordering parishes

Parishes bordering Winn Parish

Calculated by Radon411
Why bordering counties matter

6 parishes share a boundary with Winn Parish, 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.

Winn Parish, Cities and towns

Cities and towns in Winn Parish

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

  • Winnfield
  • Dodson
  • Tullos (part)
  • Calvin
  • Atlanta
  • Sikes

6 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files. “(part)” marks a place that extends into another county.

Winn Parish, 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.