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Radon Levels in Woodruff County, Arkansas

EPA puts Woodruff 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

  • Nearest county

    6.8%

    Pulaski County, 67 miles

    Pulaski
    6.8%
    Arkansas
    22.7%

    Share at 4+ pCi/L, 103 tests, 2007 to 2016

  • Ground above low

    None

    21.3 pts below Arkansas

    Woodruff
    0.0%
    Arkansas
    21.3%

    Share of land USGS rates moderate or high potential

  • Tests reported

    0

    None published

    A home here needs its own test

  • EPA radon zone

    Zone 3

    Lower potential

    1. 1
    2. 2
    3. Zone 3

    1 highest, 3 lowest

    EPA predicts under 2 pCi/L indoors

Read a result for Woodruff County

Starts at EPA's action level

4.0pCi/L

EPA’s own thresholds; the figures are the area’s, never this home’s.

EPA’s reading of 4.0 pCi/L

At or above 4 pCi/L

  1. Under 20 to 1.9 pCi/L
  2. 2 to 4consider a fix
  3. 4 and aboveEPA says fix it

This result is at or above 4 pCi/L. EPA recommends fixing a home when the radon level is 4 pCi/L or higher.

The data

Woodruff County, At a glance

Woodruff County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Woodruff County as a whole is an average indoor of less than 2 pCi/L (less than 75 Bq/m³). A low zone clears no address in it: homes above EPA's turn up in all three zones.

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

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

No CDC test figures here

CDC has published no radon test figures for Woodruff County. Pulaski County, 67 miles away, is the nearest county with a figure over the 2007 to 2016 laboratory totals.

How to read these figures

Woodruff County, Compared

Woodruff County radon figures, compared

Calculated by Radon411

CDC's county radon counts over the 2007 to 2016 laboratory totals cover 60 Arkansas counties, and Woodruff County is not among them: no year's figure and no ten-year laboratory total names it. Pooled across 60 Arkansas counties, 22.7% of reported tests reached that level; across every county in the country with a figure, 35.8%.

The nearest counties with a figure are Pulaski County (67 miles away) at 6.8%, Saline County (89 miles away) at 31.9% and Garland County (116 miles away) at 45.8%. Statewide for the same period, Garland County reported the highest share (45.8%) and Pulaski County the lowest (6.8%).

EPA's 1993 map puts Woodruff County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 100% of the county's land low radon potential.

Arkansas, the United States and the counties around Woodruff County, 2007 to 2016, laboratory
AreaTestsAt or above 4 pCi/LMedian
Arkansas, pooled60 counties, pooled68722.7%Not pooled
United States, pooled2,666 counties, pooled1,939,02535.8%Not pooled
Garland Countyhighest in the state4845.8%2.9 pCi/L
Pulaski Countylowest in the state1036.8%0.9 pCi/L
Prairie County, ARborders it1100.0%4.5 pCi/L
Monroe County, ARborders it250.0%3.9 pCi/L
Jackson County, ARborders it30.0%0.1 pCi/L
White County, ARborders it60.0%1.1 pCi/L
The nearest Arkansas counties to Woodruff County with 30 or more tests, 2007 to 2016, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Pulaski County67 mi1036.8%0.9 pCi/L
Saline County89 mi4731.9%2.2 pCi/L
Garland County116 mi4845.8%2.9 pCi/L
Washington County176 mi5614.3%2.2 pCi/L
Benton County187 mi14531.0%1.8 pCi/L

Pooled shares: Radon411's sum of CDC's county counts for one period.

Woodruff County, Geology

The ground under Woodruff County

Predicted

USGS's geologic map puts all of Woodruff County's mapped land in one class: low radon potential. All of it lies in the area the map calls Mississippi Alluvial Plain, to which USGS gives a radon index of 8, in the low band (5 to 8).

USGS's geologic areas under Woodruff County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Mississippi Alluvial PlainAlluvial sand, silt, gravel, and clay.Low8100%

Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.

Woodruff County beside the ground around it

Across Arkansas 21.3% of the land is rated moderate; none of Woodruff County's is. Of the 6 counties that border it, 2 have more moderate-potential ground, Cross County the most at 17.7%.

Share of land by USGS radon potential: Woodruff County, the 6 counties bordering it and Arkansas
AreaEPA zoneLow potentialModerate potentialHigh potential
Woodruff CountyZone 3100%NoneNone
Cross CountyZone 382.3%17.7%None
Jackson CountyZone 3100%NoneNone
St. Francis CountyZone 389.7%10.3%None
White CountyZone 3100%NoneNone
Monroe CountyZone 3100%NoneNone
Prairie CountyZone 3100%NoneNone
Arkansas75 counties, pooled by land areaVaries78.7%21.3%None

The map rates the ground, not the air in any home.

What it means

Woodruff County, Questions

Questions about radon in Woodruff County

Are radon levels high in Woodruff County?

No CDC testing statistics are published here for Woodruff County, Arkansas yet. Of the 5 nearest counties with a figure, within 187 miles, the share of tests at or above 4 pCi/L runs from 6.8% to 45.8%.

Which counties border Woodruff County?

Woodruff County borders 6 counties: Cross County, Jackson County, St. Francis County, White County, Monroe County and Prairie County.

Products

Woodruff County, Products

Testing a home in Woodruff County

No CDC figure names Woodruff County; the nearest county with one, Pulaski County (67 miles away), reported 6.8% of its tests at or above 4 pCi/L over the 2007 to 2016 laboratory totals, the only reading nearby until a test of this home. Zone 3 is the lowest label, yet homes at or above 4 pCi/L occur in every zone: a short-term kit (2 to 90 days) is the quick first check in Woodruff County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Woodruff County homes, compared

Explore

Woodruff County, Bordering counties

Counties bordering Woodruff County

Calculated by Radon411

Woodruff County, Cities and towns

Cities and towns in Woodruff County

Woodruff County has been losing residents: from 6,222 in 2020 to 5,710 on July 1, 2025, a fall of 8.2% by the Census Bureau's estimates. Spread over its land, that is 9.7 people to the square mile. Its largest town, Augusta, has 1,813 residents, 31.8% of the total. Together its 5 incorporated places hold 72.1% of those residents; the other 27.9% live outside any of them. CDC publishes no radon test count for Woodruff County; across Arkansas its counts for 2007 to 2016 come to 0.2 tests for every 1,000 residents (2025 estimate).

From Augusta to Hunter, CDC publishes no figure by town: each reads Woodruff County's.

The cities and towns in Woodruff County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Augusta1,813−8.8%31.8%
McCrory1,440−8.7%25.2%
Cotton Plant482−8.0%8.4%
Patterson282−8.1%4.9%
Hunter99−6.6%1.7%

5 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files. Residents: U.S. Census Bureau population estimates for July 1, 2025 (Vintage 2025).

Woodruff County, Homes

Homes in Woodruff County

Of Woodruff County's 3,272 homes, 69% are detached houses, against 70% across Arkansas; 14% are mobile homes. The homes are older than Arkansas' as a whole: half were built before 1978 (1987 for Arkansas), and 11% date from before 1960. 66% of occupied homes are lived in by their owner (Arkansas: 66%); in the rest a tenant can run a test, but a fix is the landlord's to make.

Homes in Woodruff County, Arkansas, 2019 to 2023
HomesWoodruff CountyArkansas
Housing units3,2721,382,664
Detached houses69%70%
In buildings of 5 or more6%10%
Mobile homes14%11%
Built before 196011%14%
Built since 200018%28%
Middle year built19781987
Owner-occupied66%66%

Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.