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Radon Levels in Chicot County, Arkansas

EPA puts Chicot 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, 119 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

    Chicot
    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 Chicot 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

Chicot County, At a glance

Chicot County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Chicot 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 Chicot County. Pulaski County, 119 miles away, is the nearest county with a figure over the 2007 to 2016 laboratory totals.

How to read these figures

Chicot County, Compared

Chicot County radon figures, compared

Calculated by Radon411

Chicot County has no radon test figure of its own from CDC, whose counts over the 2007 to 2016 laboratory totals name 60 other Arkansas counties and leave it out. 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 (119 miles away) at 6.8%, Saline County (124 miles away) at 31.9% and Garland County (140 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 Chicot 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 Chicot 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
Drew County, ARborders it10.0%0.1 pCi/L
Ashley County, ARborders it10.0%1.3 pCi/L
The nearest Arkansas counties to Chicot County with 30 or more tests, 2007 to 2016, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Pulaski County119 mi1036.8%0.9 pCi/L
Saline County124 mi4731.9%2.2 pCi/L
Garland County140 mi4845.8%2.9 pCi/L
Washington County250 mi5614.3%2.2 pCi/L
Benton County271 mi14531.0%1.8 pCi/L

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

Chicot County, Geology

The ground under Chicot County

Predicted

USGS's geologic map puts all of Chicot 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 Chicot 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.

Chicot County beside the ground around it

Across Arkansas 21.3% of the land is rated moderate; none of Chicot County's is. None of the 9 counties that border it has any moderate-potential ground either.

Share of land by USGS radon potential: Chicot County, the 9 counties bordering it and Arkansas
AreaEPA zoneLow potentialModerate potentialHigh potential
Chicot CountyZone 3100%NoneNone
Washington County, MSZone 3100%NoneNone
Ashley CountyZone 3100%NoneNone
West Carroll Parish, LAZone 3100%NoneNone
East Carroll Parish, LAZone 3100%NoneNone
Drew CountyZone 3100%NoneNone
Desha CountyZone 3100%NoneNone
Issaquena County, MSZone 3100%NoneNone
Bolivar County, MSZone 3100%NoneNone
Morehouse Parish, LAZone 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

Chicot County, Questions

Questions about radon in Chicot County

Are radon levels high in Chicot County?

No CDC testing statistics are published here for Chicot County, Arkansas yet. Of the 5 nearest counties with a figure, within 271 miles, the share of tests at or above 4 pCi/L runs from 6.8% to 45.8%.

Which counties border Chicot County?

Chicot County borders 9 counties: Washington County, MS, Ashley County, AR, West Carroll Parish, LA, East Carroll Parish, LA, Drew County, AR, Desha County, AR, Issaquena County, MS, Bolivar County, MS and Morehouse Parish, LA.

Products

Chicot County, Products

Testing a home in Chicot County

No CDC figure names Chicot County; the nearest county with one, Pulaski County (119 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 Chicot County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Chicot County homes, compared

Explore

Chicot County, Bordering counties

Counties bordering Chicot County

Calculated by Radon411

Chicot County, Cities and towns

Cities and towns in Chicot County

Chicot County has been losing residents: from 10,154 in 2020 to 9,107 on July 1, 2025, a fall of 10.3% by the Census Bureau's estimates. That works out to 14 people per square mile of land. Its largest town, Dermott, has 2,412 residents, 26.5% of the total. Together its 3 incorporated places hold 63.2% of those residents; the other 36.8% live outside any of them. CDC publishes no radon test count for Chicot County; across Arkansas its counts for 2007 to 2016 come to 0.2 tests for every 1,000 residents (2025 estimate).

From Dermott to Eudora, CDC publishes no figure by town: each reads Chicot County's.

The cities and towns in Chicot County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Dermott2,412−8.2%26.5%
Lake Village1,833−10.7%20.1%
Eudora1,511−11.7%16.6%

3 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).

Chicot County, Homes

Homes in Chicot County

Of Chicot County's 5,114 homes, 75% are detached houses, against 70% across Arkansas; 17% are mobile homes. The homes are older than Arkansas' as a whole: half were built before 1978 (1987 for Arkansas), and 13% date from before 1960. 67% 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 Chicot County, Arkansas, 2019 to 2023
HomesChicot CountyArkansas
Housing units5,1141,382,664
Detached houses75%70%
In buildings of 5 or more5%10%
Mobile homes17%11%
Built before 196013%14%
Built since 200017%28%
Middle year built19781987
Owner-occupied67%66%

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