Short-term kit
Radon Short Term Test Kit short-term charcoal radon test kit, lab fee included
- Lab fee included
Method: Charcoal
In home: 2 to 7 days
Locations and reports
Radon Levels in Pulaski County, Illinois
EPA puts Pulaski County in Zone 3, its lowest radon zone, and only 3 radon tests from it are on file with CDC (2017). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
25.3%
Union County
- Union
- 25.3%
- Johnson
- 14.6%
3 of 6 neighbours have 30+ tests, 2008 to 2017
Nearest county
25.3%
Union County, 19 miles
- Union
- 25.3%
- Illinois
- 43.1%
Share at 4+ pCi/L, 87 tests, 2008 to 2017
Ground above low
21.1%
78.0 pts below Illinois
- Pulaski
- 21.1%
- Illinois
- 99.1%
Share of land USGS rates moderate or high potential
Tests reported
18
Too few for a share
- Pulaski
- 18
- Needed
- 30
2006 to 2015, laboratory
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Pulaski 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
Pulaski County, At a glance
Pulaski County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 79% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Pulaski County, 2017
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 0.0% |
| 2017 | 0.0% |
2017: 0.0%. Across these years the share ran from 0.0% to 0.0%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
Only 3 tests were reported to CDC for Pulaski County over 2017, 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: 2017. Measured data period: 2005 to 2017 (every CDC figure on file).
Pulaski County, Compared
Pulaski County radon figures, compared
Calculated by Radon411CDC's largest figure for Pulaski County rests on 18 tests over the 2006 to 2015 laboratory totals, 2 of them at or above 4 pCi/L, so each test moves its share by 5.6 points and no rank or comparison is drawn from it. Results reached as high as 5.0 pCi/L, with a middle value of 1.0 pCi/L.
Of the counties bordering it, 3 have a figure over the 2008 to 2017 laboratory totals: Union County reported the largest share at or above 4 pCi/L, 25.3%, and Johnson County the smallest, 14.6%, with Massac County at 15.2% between. Farther out, Williamson County (37 miles away) at 13.3%, Jackson County (41 miles away) at 28.5% and Saline County (49 miles away) at 20.7% have figures too. Pooled across 102 Illinois counties, 43.1% of reported tests reached that level; across every county in the country with a figure, 35.7%.
Statewide for the same period, Stark County reported the highest share (80.5%) and Williamson County the lowest (13.3%). EPA's 1993 map puts Pulaski County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 79% of the county's land low radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Pulaski County, Geology
The ground under Pulaski County
PredictedMost of the ground under Pulaski County is one class on USGS's geologic map: 78.9% of its land is low radon potential, with 21.1% moderate. The map puts 70.8% of Pulaski County in the area it calls Coastal Plain Province and 21.1% in Shawnee Hills Section, with one smaller area beside them. USGS gives the first a radon index of 8, in the low band (5 to 8), and the second 10, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Coastal Plain Province | Cretaceous marine sediments and Quaternary alluvium. | Low | 8 | 70.8% |
| Shawnee Hills Section | Unglaciated Ordovician to Pennsylvanian limestone, sandstone, and shale. | Moderate | 10 | 21.1% |
| Coastal Plains Province | Tertiary-Quaternary sandstone, shale, and alluvium. | Low | 5 | 7.6% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Pulaski County beside the ground around it
Across Illinois 64.5% of the land is rated high; none of Pulaski County's is. Of the 6 counties that border it, 3 have more moderate-potential ground, Union County the most at 100%.
The map rates the ground, not the air in any home.
Local help
Pulaski County, Local resources
Radon testing and mitigation in Pulaski County
- IEMA-OHS Radon ProgramIEMA-OHS Radon Program, run by Illinois Emergency Management Agency and Office of Homeland Security, licenses or certifies radon professionals and states the rule for disclosing radon when a home is sold, and answers questions about testing and mitigation in Illinois.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
- Professionals in Illinois339 professionals are listed in Illinois.
What Illinois's program says
- Phone
- (800) 325-1245
- Licensing of radon professionals
The Agency also licenses and regulates the individuals who provide radon measurement and mitigation to the public.
- Disclosure when a home is sold or rented
Illinois Radon Awareness Act - This is the legislation that requires the seller to provide to the buyer of any interest in residential real property the IEMA-OHS pamphlet entitled "Radon Testing Guidelines for Real Estate Transactions" and the Illinois Disclosure of Information on Radon Hazards.
What it means
Pulaski County, Questions
Questions about radon in Pulaski County
Are radon levels high in Pulaski County?
In 2017, 0.0% of the radon tests reported to CDC for Pulaski County, Illinois were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.6 pCi/L. Of the counties bordering it, 3 have a figure over the 2008 to 2017 laboratory totals: Union County reported the largest share at or above 4 pCi/L, 25.3%, and Johnson County the smallest, 14.6%, with Massac County at 15.2% between.
Which counties border Pulaski County?
Pulaski County borders 6 counties: Ballard County, KY, Alexander County, IL, Union County, IL, McCracken County, KY, Johnson County, IL and Massac County, IL.
Products
Pulaski County, Products
Testing a home in Pulaski County
No CDC figure names Pulaski County; the nearest county with one, Union County (19 miles away), reported 25.3% of its tests at or above 4 pCi/L over the 2008 to 2017 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 Pulaski County.
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
Monitor
EcoBlu plug-in digital radon monitor with a display
- C-NRPP 2024/25: Not included
- Plug-in
- Alarm
- Screen
Method: Ion chamber
First reading: Within 10 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Pulaski County, Bordering counties
Counties bordering Pulaski County
Calculated by Radon411- Radon levels in Union County, ILEPA zone 2
25.3%at or above 4 pCi/L
Median 1.9 pCi/L · 87 tests
- Radon levels in Alexander County, ILEPA zone 3
22.2%at or above 4 pCi/L
Median 2.4 pCi/L · 9 tests
- Radon levels in McCracken County, KYEPA zone 3
21.4%at or above 4 pCi/L
Median 1.6 pCi/L · 28 tests
- Radon levels in Massac County, ILEPA zone 3
15.2%at or above 4 pCi/L
Median 1.9 pCi/L · 33 tests
- Radon levels in Johnson County, ILEPA zone 2
14.6%at or above 4 pCi/L
Median 1.8 pCi/L · 48 tests
- Radon levels in Ballard County, KYEPA zone 3
0.0%at or above 4 pCi/L
Median 1.4 pCi/L · 4 tests
Pulaski County, Cities and towns
Cities and towns in Pulaski County
Pulaski County has been losing residents: from 5,176 in 2020 to 4,820 on July 1, 2025, a fall of 6.9% by the Census Bureau's estimates. That works out to 24 people per square mile of land. No town dominates: Mounds, the largest, has 600 residents, 12.4% of the total. Together its 7 incorporated places hold 51.4% of those residents; the other 48.6% live outside any of them. Reported testing is thin here: 18 tests over 2006 to 2015, or 3.7 for every 1,000 residents (2025 estimate), where Illinois as a whole comes to 7.8.
From Mounds to Pulaski, CDC publishes no figure by town: each reads Pulaski County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Mounds | 600 | −8.3% | 12.4% |
| Mound City | 477 | −8.3% | 9.9% |
| Ullin | 457 | −4.6% | 9.5% |
| Karnak | 394 | −6.6% | 8.2% |
| Olmsted | 265 | −6.7% | 5.5% |
| New Grand Chain | 143 | −7.1% | 3.0% |
| Pulaski | 142 | −7.8% | 2.9% |
7 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).
Pulaski County, Homes
Homes in Pulaski County
Of Pulaski County's 2,845 homes, 64% are detached houses, against 58% across Illinois; 24% are mobile homes. Half of its homes were built before 1968, close to Illinois' 1970: 36% date from before 1960 and 14% from 2000 or later. 68% of occupied homes are lived in by their owner (Illinois: 67%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Pulaski County | Illinois |
|---|---|---|
| Housing units | 2,845 | 5,443,501 |
| Detached houses | 64% | 58% |
| In buildings of 5 or more | 2% | 22% |
| Mobile homes | 24% | 2% |
| Built before 1960 | 36% | 38% |
| Built since 2000 | 14% | 16% |
| Middle year built | 1968 | 1970 |
| Owner-occupied | 68% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.