Short-term kit
PicoCan short-term charcoal canister radon test
- Lab fee included
Method: Charcoal
In home: 48 to 96 hours
Locations and reports
Radon Levels in Parke County, Indiana
EPA puts Parke County in Zone 2, its middle radon zone, and only 25 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%
- Putnam
- 34.5%
4 of 6 neighbours have 30+ tests, 2008 to 2017
Nearest county
34.5%
Putnam County, 21 miles
- Putnam
- 34.5%
- Indiana
- 38.9%
Share at 4+ pCi/L, 119 tests, 2008 to 2017
Ground above low
100.0%
Level with Indiana
- Parke
- 100.0%
- Indiana
- 100.0%
Share of land USGS rates moderate or high potential
Tests reported
27
Too few for a share
- Parke
- 27
- Needed
- 30
2006 to 2015, 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 Parke 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
Parke County, At a glance
Parke County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Parke County is a
USGS geologic potential: Moderate across 73% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Parke County, 2008 to 2017, laboratory
CDC holds 25 reported tests for Parke County over the 2008 to 2017 laboratory totals, with a median of 4.8 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Parke County beside the counties around it is how this page reads it.
What these figures count
Only 25 tests were reported to CDC for Parke 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).
Parke County, Compared
Parke County radon figures, compared
Calculated by Radon411CDC's largest figure for Parke County rests on 27 tests over the 2006 to 2015 laboratory totals, 18 of them at or above 4 pCi/L, so each test moves its share by 3.7 points and no rank or comparison is drawn from it. Results reached as high as 19.0 pCi/L, with a middle value of 4.8 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 Putnam County the smallest, 34.5%, with Vigo County at 44.0% and Montgomery County at 41.4% between. Farther out, Hendricks County (37 miles away) at 41.5%, Owen County (37 miles away) at 39.1% and Boone County (44 miles away) at 39.7% 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 Parke County in Zone 2, its middle label: a predicted county average between 2 and 4 pCi/L. USGS geology rates 73% of the county's land moderate radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Parke County, Geology
The ground under Parke County
PredictedUSGS's geologic map splits Parke County: 72.8% of its land is moderate radon potential and 27.2% high. The map puts 72.8% of Parke County in the area it calls Wabash Lowland and 27.2% in Huron-Erie Lobe. USGS gives the first a radon index of 10, in the moderate band (9 to 11), and the second 13, in the high band (12 to 17).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Wabash Lowland | Loess, pre-Wisconsinan glacial deposits, Pennsylvanian shale, sandstone, and carbonate bedrock. | Moderate | 10 | 72.8% |
| Huron-Erie Lobe | Calcareous clayey and loamy glacial deposits derived from marine carbonate and clastic sedimentary rocks. | High | 13 | 27.2% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Parke County beside the ground around it
Indiana as a whole has more high-potential ground than Parke County: 56.6% of its land, against 27.2% here. Of the 6 counties that border it, 4 have more high-potential ground, Vermillion County the most at 99.0%.
The map rates the ground, not the air in any home.
Local help
Parke County, Local resources
Radon testing and mitigation in Parke 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
Parke County, Questions
Questions about radon in Parke County
Are radon levels high in Parke County?
Over the 2008 to 2017 laboratory totals, 68.0% of the radon tests reported to CDC for Parke County, Indiana were at or above 4 pCi/L, and the median reported pre-mitigation result was 4.8 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 Putnam County the smallest, 34.5%, with Vigo County at 44.0% and Montgomery County at 41.4% between.
Which counties border Parke County?
Parke County borders 6 counties: Vermillion County, Putnam County, Clay County, Vigo County, Montgomery County and Fountain County.
Products
Parke County, Products
Testing a home in Parke County
No CDC figure names Parke County; the nearest county with one, Putnam County (21 miles away), reported 34.5% 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 2 a short-term kit (2 to 90 days) is the quick first check in Parke County; a long-term test tells the year-round average.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL416 long-term radon test kit, lab fee included
- Lab fee included
Method: Alpha track
In home: 90 days to 12 months
MonitorAranet
Radon Plus battery digital radon monitor with an e-ink screen
- C-NRPP 2024/25: Approved
- Battery
- Bluetooth
- Alarm
- Screen, app
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
Parke County, Bordering counties
Counties bordering Parke County
Calculated by Radon411- Radon levels in Fountain CountyEPA zone 1
55.0%at or above 4 pCi/L
Median 4.6 pCi/L · 60 tests
- Radon levels in Vigo CountyEPA zone 2
44.0%at or above 4 pCi/L
Median 3.6 pCi/L · 455 tests
- Radon levels in Vermillion CountyEPA zone 1
41.7%at or above 4 pCi/L
Median 3.3 pCi/L · 24 tests
- Radon levels in Montgomery CountyEPA zone 1
41.4%at or above 4 pCi/L
Median 2.9 pCi/L · 152 tests
- Radon levels in Putnam CountyEPA zone 1
34.5%at or above 4 pCi/L
Median 2.7 pCi/L · 119 tests
- Radon levels in Clay CountyEPA zone 2
26.1%at or above 4 pCi/L
Median 2.9 pCi/L · 23 tests
Parke County, Cities and towns
Cities and towns in Parke County
The Census Bureau estimates 16,642 residents in Parke County for July 1, 2025, 489 more than in 2020 (+3.0%). That works out to 37 people per square mile of land. No town dominates: Rockville, the largest, has 2,597 residents, 15.6% of the total. Together its 6 incorporated places hold 30.1% of those residents; the other 69.9% live outside any of them. Reported testing is thin here: 27 tests over 2006 to 2015, or 1.6 for every 1,000 residents (2025 estimate), where Indiana as a whole comes to 5.2.
From Rockville to Mecca, CDC publishes no figure by town: each reads Parke County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Rockville | 2,597 | +3.4% | 15.6% |
| Montezuma | 929 | +1.0% | 5.6% |
| Rosedale | 660 | +3.3% | 4.0% |
| Bloomingdale | 277 | +2.6% | 1.7% |
| Marshall | 276 | +2.6% | 1.7% |
| Mecca | 276 | +4.5% | 1.7% |
6 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).
Parke County, Homes
Homes in Parke County
Parke County is a place of houses on their own lots: 78% of its 7,625 homes are detached single-family houses, against 73% across Indiana. Half of its homes were built before 1973, close to Indiana's 1976: 34% date from before 1960 and 24% from 2000 or later. Owners live in 82% of the occupied homes (Indiana: 70%), so for most households a test and a fix are their own to order.
| Homes | Parke County | Indiana |
|---|---|---|
| Housing units | 7,625 | 2,953,344 |
| Detached houses | 78% | 73% |
| In buildings of 5 or more | 2% | 13% |
| Mobile homes | 14% | 4% |
| Built before 1960 | 34% | 32% |
| Built since 2000 | 24% | 21% |
| Middle year built | 1973 | 1976 |
| Owner-occupied | 82% | 70% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.