Short-term kitFirst Alert
RD1 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 2 to 4 days
Locations and reports
Radon Levels in Izard County, Arkansas
EPA puts Izard County in Zone 2, its middle radon zone, and only 4 radon tests from it are on file with CDC (2008 to 2017, laboratory totals). 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, 94 miles
- Pulaski
- 6.8%
- Arkansas
- 22.7%
Share at 4+ pCi/L, 103 tests, 2007 to 2016
Ground above low
100.0%
78.7 pts above Arkansas
- Izard
- 100.0%
- Arkansas
- 21.3%
Share of land USGS rates moderate or high potential
Tests reported
4
Too few for a share
- Izard
- 4
- Needed
- 30
2008 to 2017, laboratory
EPA radon zone
Zone 2
Moderate potential
- 1
- Zone 2
- 3
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Read a result for Izard County
Starts at EPA's action level
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
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 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
Izard County, At a glance
Izard County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Izard County is a
USGS geologic potential: Moderate across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Izard County, 2008 to 2017, laboratory
CDC holds 4 reported tests for Izard County over the 2008 to 2017 laboratory totals, with a median of 1.2 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Izard County beside the counties around it is how this page reads it.
What these figures count
Only 4 tests were reported to CDC for Izard County over 2008 to 2017 (laboratory totals), and tests are often run on homes being sold or already suspected of a problem: so few describe neither the county nor this house.
Measured: CDC tracking data. Figure above: 2008 to 2017, laboratory. Measured data period: 2005 to 2017 (every CDC figure on file).
Izard County, Compared
Izard County radon figures, compared
Calculated by Radon411CDC's largest figure for Izard County rests on 4 tests over the 2008 to 2017 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 25.0 points and no rank or comparison is drawn from it. Results reached as high as 3.8 pCi/L, with a middle value of 1.2 pCi/L.
The nearest counties with a figure are Pulaski County (94 miles away) at 6.8%, Saline County (109 miles away) at 31.9% and Garland County (126 miles away) at 45.8%. Pooled across 60 Arkansas counties, 22.7% of reported tests reached that level; across every county in the country with a figure, 35.8%.
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 Izard County in Zone 2, its middle label: a predicted county average between 2 and 4 pCi/L. USGS geology rates 100% of the county's land moderate radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Izard County, Geology
The ground under Izard County
PredictedUSGS's geologic map puts all of Izard County's mapped land in one class: moderate radon potential. All of it lies in the area the map calls Salem Plateau, to which USGS gives a radon index of 9, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Salem Plateau | Ordovician dolomite. | Moderate | 9 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Izard County beside the ground around it
Izard County has more moderate-potential ground than Arkansas as a whole: 100% of its land against 21.3%. Of the 5 counties that border it, none has as large a share of moderate-potential ground; Baxter County comes nearest at 100%.
The map rates the ground, not the air in any home.
Local help
Izard County, Local resources
Radon testing and mitigation in Izard County
- Arkansas's radon programArkansas Department of HealthArkansas's radon program answers questions about testing, mitigation and the rules in Arkansas.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsAsk the program whether it has free or discounted kits, or compare kits you can buy.
- Compare kits
- See the Arkansas directoryNo professionals are listed in Arkansas yet. The state program can point you to registered testers and mitigators.
What Arkansas's program says
- Phone
- 501-661-2621
- ADH.EPI.Radon@arkansas.gov
What it means
Izard County, Questions
Questions about radon in Izard County
Are radon levels high in Izard County?
Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Izard County, Arkansas were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.2 pCi/L. Of the 5 nearest counties with a figure, within 132 miles, the share of tests at or above 4 pCi/L runs from 6.8% to 45.8%.
Which counties border Izard County?
Izard County borders 5 counties: Stone County, Sharp County, Fulton County, Baxter County and Independence County.
Products
Izard County, Products
Testing a home in Izard County
No CDC figure names Izard County; the nearest county with one, Pulaski County (94 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. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Izard County; a long-term test tells the year-round average.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
MonitorPYZYCKYH
RD17 plug-in radon detector with a rechargeable battery and color screen
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
First reading: Within 6 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Izard County, Bordering counties
Counties bordering Izard County
Calculated by Radon411- Radon levels in Fulton CountyEPA zone 2
66.7%at or above 4 pCi/L
Median 9.6 pCi/L · 3 tests
- Radon levels in Baxter CountyEPA zone 2
65.0%at or above 4 pCi/L
Median 5.3 pCi/L · 20 tests
- Radon levels in Sharp CountyEPA zone 2
44.4%at or above 4 pCi/L
Median 2.9 pCi/L · 9 tests
- Radon levels in Independence CountyEPA zone 2
26.7%at or above 4 pCi/L
Median 2.4 pCi/L · 15 tests
- Radon levels in Stone CountyEPA zone 2
0.0%at or above 4 pCi/L
Median 1.1 pCi/L · 7 tests
Izard County, Cities and towns
Cities and towns in Izard County
Izard County is growing: the Census Bureau puts it at 14,405 residents on July 1, 2025, up 5.9% from 13,604 in 2020. That works out to 25 people per square mile of land. Horseshoe Bend, the largest place on its list (2,623 residents in all), extends beyond Izard County, so no share of the total is worked out for it. CDC's 4 reported tests for 2008 to 2017 work out to 0.3 per 1,000 residents (2025 estimate), close to Arkansas' 0.2.
From Horseshoe Bend to Guion, CDC publishes no figure by town: each reads Izard County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Horseshoe Bendextends beyond Izard County | 2,623 | +7.4% | Counted whole |
| Calico Rock | 2,003 | +9.6% | 13.9% |
| Melbourne | 1,892 | +3.8% | 13.1% |
| Oxford | 615 | +6.2% | 4.3% |
| Mount Pleasant | 383 | +5.5% | 2.7% |
| Franklin | 198 | +5.3% | 1.4% |
| Pineville | 164 | +7.9% | 1.1% |
| Guion | 72 | +4.3% | 0.5% |
8 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). A place that extends beyond Izard County is counted whole, so it has no share.
Izard County, Homes
Homes in Izard County
Izard County is a place of houses on their own lots: 81% of its 6,749 homes are detached single-family houses, against 70% across Arkansas. Half of its homes were built before 1983, close to Arkansas' 1987: 14% date from before 1960 and 20% from 2000 or later. 75% 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 | Izard County | Arkansas |
|---|---|---|
| Housing units | 6,749 | 1,382,664 |
| Detached houses | 81% | 70% |
| In buildings of 5 or more | 1% | 10% |
| Mobile homes | 14% | 11% |
| Built before 1960 | 14% | 14% |
| Built since 2000 | 20% | 28% |
| Middle year built | 1983 | 1987 |
| Owner-occupied | 75% | 66% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.