Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
Locations and reports
Radon Levels in Vermillion County, Indiana
EPA puts Vermillion County in Zone 1, its highest radon zone, and only 24 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
Highest bordering
55.0%
Fountain County
- Fountain
- 55.0%
- Edgar
- 37.9%
4 of 6 neighbours have 30+ tests, 2008 to 2017
Nearest county
55.0%
Fountain County, 22 miles
- Fountain
- 55.0%
- Indiana
- 38.9%
Share at 4+ pCi/L, 60 tests, 2008 to 2017
Ground above low
100.0%
Level with Indiana
- Vermillion
- 100.0%
- Indiana
- 100.0%
Share of land USGS rates moderate or high potential
Tests reported
24
Too few for a share
- Vermillion
- 24
- Needed
- 30
2008 to 2017, laboratory
EPA radon zone
Zone 1
Highest potential
- Zone 1
- 2
- 3
1 highest, 3 lowest
EPA predicts over 4 pCi/L indoors
Read a result for Vermillion 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
Vermillion County, At a glance
Vermillion County at a glance
Predicted: EPA radon zone
EPA Zone 1: highest predicted potential
EPA puts all of Vermillion County in
USGS geologic potential: High across 99% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Vermillion County, 2008 to 2017, laboratory
CDC holds 24 reported tests for Vermillion County over the 2008 to 2017 laboratory totals, with a median of 3.3 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Vermillion County beside the counties around it is how this page reads it.
What these figures count
Only 24 tests were reported to CDC for Vermillion 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).
Vermillion County, Compared
Vermillion County radon figures, compared
Calculated by Radon411CDC's largest figure for Vermillion County rests on 24 tests over the 2008 to 2017 laboratory totals, 10 of them at or above 4 pCi/L, so each test moves its share by 4.2 points and no rank or comparison is drawn from it. Results reached as high as 25.3 pCi/L, with a middle value of 3.3 pCi/L.
Of the counties bordering it, 4 have a figure over the 2008 to 2017 laboratory totals: Fountain County reported the largest share at or above 4 pCi/L, 55.0%, and Edgar County, IL the smallest, 37.9%, with Vermilion County, IL at 48.8% and Vigo County at 44.0% between. Farther out, Montgomery County (33 miles away) at 41.4%, Putnam County (35 miles away) at 34.5% and Tippecanoe County (48 miles away) at 36.8% have figures too. Pooled across 92 Indiana counties, 38.9% of reported tests reached that level; across every county in the country with a figure, 35.7%.
Statewide for the same period, Miami County reported the highest share (63.3%) and Jasper County the lowest (14.1%). EPA's 1993 map puts Vermillion County in Zone 1, the map's highest label: a predicted county average above 4 pCi/L. USGS geology rates 99% of the county's land high radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Vermillion County, Geology
The ground under Vermillion County
PredictedMost of the ground under Vermillion County is one class on USGS's geologic map: 99.0% of its land is high radon potential, with 1.0% moderate. 98.4% of it lies in the area the map calls Huron-Erie Lobe, to which USGS gives a radon index of 13, in the high band (12 to 17).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Huron-Erie Lobe | Calcareous clayey and loamy glacial deposits derived from marine carbonate and clastic sedimentary rocks. | High | 13 | 98.4% |
| Wabash Lowland | Loess, pre-Wisconsinan glacial deposits, Pennsylvanian shale, sandstone, and carbonate bedrock. | Moderate | 10 | 1.0% |
| Bloomington Ridged Plain | Wisconsinan glacial deposits and loess over Paleozoic sedimentary rocks. | High | 13 | 0.6% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Vermillion County beside the ground around it
Vermillion County has more high-potential ground than Indiana as a whole: 99.0% of its land against 56.6%. Of the 6 counties that border it, 2 have more high-potential ground, Vermilion County, IL the most at 100%.
The map rates the ground, not the air in any home.
Local help
Vermillion County, Local resources
Radon testing and mitigation in Vermillion County
- Indiana's radon programIndiana Department of HealthIndiana's radon program licenses or certifies radon professionals and offers free or discounted test kits, and answers questions about testing and mitigation in Indiana.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
To purchase a low-cost radon short term or long term test kit, please visit the American Lung Association
- Compare kits
- Professionals in Indiana17 professionals are listed in Indiana.
What Indiana's program says
- Phone
- 1-800-272-9723
- Licensing of radon professionals
According to the Indiana Radon Rule, 410 IAC 5.1, everyone who is serving Indiana by doing radon testing, analysis and mitigation (radon reduction) in residential structures must be certified by the Indiana State Department of Health.
What it means
Vermillion County, Questions
Questions about radon in Vermillion County
Are radon levels high in Vermillion County?
Over the 2008 to 2017 laboratory totals, 41.7% of the radon tests reported to CDC for Vermillion County, Indiana were at or above 4 pCi/L, and the median reported pre-mitigation result was 3.3 pCi/L. Of the counties bordering it, 4 have a figure over the 2008 to 2017 laboratory totals: Fountain County reported the largest share at or above 4 pCi/L, 55.0%, and Edgar County, IL the smallest, 37.9%, with Vermilion County, IL at 48.8% and Vigo County at 44.0% between.
Which counties border Vermillion County?
Vermillion County borders 6 counties: Parke County, IN, Fountain County, IN, Edgar County, IL, Vermilion County, IL, Warren County, IN and Vigo County, IN.
Products
Vermillion County, Products
Testing a home in Vermillion County
No CDC figure names Vermillion County; the nearest county with one, Fountain County (22 miles away), reported 55.0% 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. In Zone 1 the year-round level in Vermillion County is the one to know: a long-term test (more than 90 days) or a monitor, with a short-term kit for a first answer.
Test kits and monitors3
See every kit and monitor
Monitor
View Plus radon and air quality monitor
- C-NRPP 2024/25: Approved
- Battery
- Wi-Fi, Bluetooth
- Screen, app
Method: Alpha spectrometry
Short-term kit
PicoCan short-term charcoal canister radon test
- Lab fee included
Method: Charcoal
In home: 48 to 96 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Vermillion County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Vermillion County
Explore
Vermillion County, Bordering counties
Counties bordering Vermillion County
Calculated by Radon411- Radon levels in Parke County, INEPA zone 2
68.0%at or above 4 pCi/L
Median 4.8 pCi/L · 25 tests
- Radon levels in Fountain County, INEPA zone 1
55.0%at or above 4 pCi/L
Median 4.6 pCi/L · 60 tests
- Radon levels in Vermilion County, ILEPA zone 1
48.8%at or above 4 pCi/L
Median 3.8 pCi/L · 379 tests
- Radon levels in Vigo County, INEPA zone 2
44.0%at or above 4 pCi/L
Median 3.6 pCi/L · 455 tests
- Radon levels in Edgar County, ILEPA zone 1
37.9%at or above 4 pCi/L
Median 3.2 pCi/L · 116 tests
- Radon levels in Warren County, INEPA zone 1
33.3%at or above 4 pCi/L
Median 3.5 pCi/L · 27 tests
Vermillion County, Cities and towns
Cities and towns in Vermillion County
The Census Bureau estimates 15,488 residents in Vermillion County for July 1, 2025, 86 more than in 2020 (+0.6%). That works out to 60 people per square mile of land. Its largest town, Clinton, has 4,771 residents, 30.8% of the total. Together its 7 incorporated places hold 57.1% of those residents; the other 42.9% live outside any of them. Reported testing is thin here: 24 tests over 2008 to 2017, or 1.5 for every 1,000 residents (2025 estimate), where Indiana as a whole comes to 6.2.
From Clinton to Universal, CDC publishes no figure by town: each reads Vermillion County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Clinton | 4,771 | −0.7% | 30.8% |
| Fairview Park | 1,420 | +1.3% | 9.2% |
| Cayuga | 949 | −0.1% | 6.1% |
| Dana | 554 | Level | 3.6% |
| Perrysville | 457 | +1.1% | 3.0% |
| Newport | 410 | −0.2% | 2.6% |
| Universal | 285 | +1.4% | 1.8% |
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).
Vermillion County, Homes
Homes in Vermillion County
Vermillion County is a place of houses on their own lots: 84% of its 7,326 homes are detached single-family houses, against 73% across Indiana. The homes are older than Indiana's as a whole: half were built before 1961 (1976 for Indiana), and 50% date from before 1960. 74% of occupied homes are lived in by their owner (Indiana: 70%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Vermillion County | Indiana |
|---|---|---|
| Housing units | 7,326 | 2,953,344 |
| Detached houses | 84% | 73% |
| In buildings of 5 or more | 4% | 13% |
| Mobile homes | 8% | 4% |
| Built before 1960 | 50% | 32% |
| Built since 2000 | 12% | 21% |
| Middle year built | 1961 | 1976 |
| Owner-occupied | 74% | 70% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.