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 Scotland County, Missouri
EPA puts Scotland County in Zone 2, its middle radon zone, and only 2 radon tests from it are on file with CDC (2016). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
42.4%
Davis County
- Davis
- 42.4%
- Adair
- 27.2%
3 of 6 neighbours have 30+ tests, 2008 to 2017
Nearest county
27.2%
Adair County, 30 miles
- Adair
- 27.2%
- Missouri
- 30.6%
Share at 4+ pCi/L, 92 tests, 2008 to 2017
Ground above low
100.0%
5.8 pts above Missouri
- Scotland
- 100.0%
- Missouri
- 94.2%
Share of land USGS rates moderate or high potential
Tests reported
19
Too few for a share
- Scotland
- 19
- Needed
- 30
2007 to 2016, 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 Scotland 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
Scotland County, At a glance
Scotland County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Scotland 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 Scotland County, 2016
CDC holds 2 reported tests for Scotland County in 2016, with a median of 0.4 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Scotland County beside the counties around it is how this page reads it.
What these figures count
Only 2 tests were reported to CDC for Scotland County over 2016, 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: 2016. Measured data period: 2005 to 2017 (every CDC figure on file).
Scotland County, Compared
Scotland County radon figures, compared
Calculated by Radon411CDC's largest figure for Scotland County rests on 19 tests over the 2007 to 2016 laboratory totals, 4 of them at or above 4 pCi/L, so each test moves its share by 5.3 points and no rank or comparison is drawn from it. Results reached as high as 12.2 pCi/L, with a middle value of 1.4 pCi/L.
Of the counties bordering it, 3 have a figure over the 2008 to 2017 laboratory totals: Davis County, IA reported the largest share at or above 4 pCi/L, 42.4%, and Adair County the smallest, 27.2%, with Van Buren County, IA at 32.1% between. Farther out, Lewis County (33 miles away) at 32.4%, Macon County (48 miles away) at 19.4% and Marion County (53 miles away) at 41.8% have figures too. Pooled across 115 Missouri counties, 30.6% of reported tests reached that level; across every county in the country with a figure, 35.7%.
Statewide for the same period, Atchison County reported the highest share (69.9%) and Vernon County the lowest (8.8%). EPA's 1993 map puts Scotland 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.
Scotland County, Geology
The ground under Scotland County
PredictedUSGS's geologic map puts all of Scotland County's mapped land in one class: moderate radon potential. All of it lies in the area the map calls Dissected Till Plains, to which USGS gives a radon index of 11, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Dissected Till Plains | Till-covered Pennsylvanian sandstone, shale, and limestone. | Moderate | 11 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Scotland County beside the ground around it
Across Missouri 8.2% of the land is rated high; none of Scotland County's is. Of the 6 counties that border it, 3 have more high-potential ground, Van Buren County, IA the most at 91.2%.
The map rates the ground, not the air in any home.
Local help
Scotland County, Local resources
Radon testing and mitigation in Scotland County
- Missouri Radon ProgramMissouri Radon Program, run by Missouri Department of Health and Senior Services, offers free or discounted test kits, and answers questions about testing and mitigation in Missouri.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
Free radon test kits are available for Missouri residents (limit one per household).
- Compare kits
- Professionals in Missouri27 professionals are listed in Missouri.
What Missouri's program says
- Phone
- 573-751-6102
- radon@health.mo.gov
What it means
Scotland County, Questions
Questions about radon in Scotland County
Are radon levels high in Scotland County?
In 2016, 0.0% of the radon tests reported to CDC for Scotland County, Missouri were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.4 pCi/L. Of the counties bordering it, 3 have a figure over the 2008 to 2017 laboratory totals: Davis County, IA reported the largest share at or above 4 pCi/L, 42.4%, and Adair County the smallest, 27.2%, with Van Buren County, IA at 32.1% between.
Which counties border Scotland County?
Scotland County borders 6 counties: Van Buren County, IA, Schuyler County, MO, Clark County, MO, Knox County, MO, Davis County, IA and Adair County, MO.
Products
Scotland County, Products
Testing a home in Scotland County
No CDC figure names Scotland County; the nearest county with one, Adair County (30 miles away), reported 27.2% 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 Scotland 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
Scotland County, Bordering counties
Counties bordering Scotland County
Calculated by Radon411- Radon levels in Davis County, IAEPA zone 1
42.4%at or above 4 pCi/L
Median 3.1 pCi/L · 85 tests
- Radon levels in Van Buren County, IAEPA zone 1
32.1%at or above 4 pCi/L
Median 2.3 pCi/L · 56 tests
- Radon levels in Clark County, MOEPA zone 2
29.4%at or above 4 pCi/L
Median 2.2 pCi/L · 17 tests
- Radon levels in Adair County, MOEPA zone 2
27.2%at or above 4 pCi/L
Median 1.8 pCi/L · 92 tests
- Radon levels in Schuyler County, MOEPA zone 2
9.1%at or above 4 pCi/L
Median 1.0 pCi/L · 11 tests
- Radon levels in Knox County, MOEPA zone 2
0.0%at or above 4 pCi/L
Median 1.9 pCi/L · 10 tests
Scotland County, Cities and towns
Cities and towns in Scotland County
The Census Bureau estimates 4,796 residents in Scotland County for July 1, 2025, 98 more than in 2020 (+2.1%). That works out to 11 people per square mile of land. Its largest town, Memphis, has 1,762 residents, 36.7% of the total. Together its 5 incorporated places hold 40.8% of those residents; the other 59.2% live outside any of them. Reported testing is thin here: 19 tests over 2007 to 2016, or 4.0 for every 1,000 residents (2025 estimate), where Missouri as a whole comes to 8.8.
From Memphis to Granger, CDC publishes no figure by town: each reads Scotland County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Memphis | 1,762 | +2.0% | 36.7% |
| Rutledge | 85 | +2.4% | 1.8% |
| South Gorin | 63 | +1.6% | 1.3% |
| Arbela | 23 | +4.5% | 0.5% |
| Granger | 22 | Level | 0.5% |
5 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).
Scotland County, Homes
Homes in Scotland County
Scotland County is a place of houses on their own lots: 83% of its 2,215 homes are detached single-family houses, against 70% across Missouri. The homes are older than Missouri's as a whole: half were built before 1969 (1978 for Missouri), and 40% date from before 1960. Owners live in 83% of the occupied homes (Missouri: 68%), so for most households a test and a fix are their own to order.
| Homes | Scotland County | Missouri |
|---|---|---|
| Housing units | 2,215 | 2,809,501 |
| Detached houses | 83% | 70% |
| In buildings of 5 or more | 2% | 13% |
| Mobile homes | 8% | 5% |
| Built before 1960 | 40% | 28% |
| Built since 2000 | 22% | 21% |
| Middle year built | 1969 | 1978 |
| Owner-occupied | 83% | 68% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.