Short-term kitempowerDX
Standard Radon Test short-term mail-in radon test kit
- Lab fee included
Method: Passive sampler
In home: 48 to 96 hours
Locations and reports
Radon Levels in Adams County, Mississippi
EPA puts Adams County in Zone 3, its lowest radon zone. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Nearest county
0.0%
East Baton Rouge Parish, 67 miles
- East Baton Rouge Parish
- 0.0%
Share at 4+ pCi/L, 48 tests, 2006 to 2015
Ground above low
None
8.1 pts below MS
- Adams
- 0.0%
- MS
- 8.1%
Share of land USGS rates moderate or high potential
Tests reported
0
None published
A home here needs its own test
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 Adams 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
Adams County, At a glance
Adams County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
No CDC test figures here
CDC has published no radon test figures for Adams County. East Baton Rouge Parish, LA, 67 miles away, is the nearest county with a figure over the 2006 to 2015 laboratory totals.
Adams County, Compared
Adams County radon figures, compared
Calculated by Radon411CDC publishes no radon test figure for Adams County, and none for any other Mississippi county: its counts over the 2006 to 2015 laboratory totals cover 2,669 counties elsewhere in the country. Across every county in the country with a figure (2,669), 36.3% of reported tests reached that level; no Mississippi county contributes to that pool.
The nearest counties with a figure are East Baton Rouge Parish, LA (67 miles away) at 0.0%, Tangipahoa Parish, LA (81 miles away) at 0.0% and Jefferson Parish, LA (138 miles away) at 1.5%.
EPA's 1993 map puts Adams County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 100% of the county's land low radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Adams County, Geology
The ground under Adams County
PredictedUSGS's geologic map puts all of Adams County's mapped land in one class: low radon potential. The map puts 54.2% of Adams County in the area it calls Loess Hills and 35.3% in Mississippi Alluvial Plain, with 2 smaller areas beside them. USGS gives the first a radon index of 7 and the second 8, both in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Loess Hills | Loess. | Low | 7 | 54.2% |
| Mississippi Alluvial Plain | Alluvial sand, silt, gravel, and clay. | Low | 8 | 35.3% |
| Pine Hills | Sand, sandstone, bentonitic clay, quartzite, gravel, tuff, and siltstone. | Low | 6 | 9.7% |
| Floodplain | Alluvium, marsh, silt, and clay. | Low | 7 | 0.8% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Adams County beside the ground around it
Across Mississippi 0.1% of the land is rated high; none of Adams County's is. None of the 5 counties that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
Adams County, Local resources
Radon testing and mitigation in Adams County
- Mississippi Radon ProgramMississippi Radon Program, run by Mississippi State Department of Health, answers questions about testing, mitigation and the rules in Mississippi.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 Mississippi directoryNo professionals are listed in Mississippi yet. The state program can point you to registered testers and mitigators.
What Mississippi's program says
- Phone
- 1-800-626-7739
What it means
Adams County, Questions
Questions about radon in Adams County
Are radon levels high in Adams County?
No CDC testing statistics are published here for Adams County, Mississippi yet. Of the 8 nearest counties with a figure, within 237 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 45.5%.
Which counties border Adams County?
Adams County borders 5 counties: Wilkinson County, MS, Concordia Parish, LA, Jefferson County, MS, Franklin County, MS and Tensas Parish, LA.
Products
Adams County, Products
Testing a home in Adams County
No CDC figure names Adams County; the nearest county with one, East Baton Rouge Parish, LA (67 miles away), reported 0.0% of its tests at or above 4 pCi/L over the 2006 to 2015 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 Adams County.
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
MonitorAEGTEST
HOUND-1011 rechargeable radon detector with a 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
Adams County, Bordering counties
Counties bordering Adams County
Calculated by Radon411- Radon levels in Concordia Parish, LAEPA zone 3
0.0%at or above 4 pCi/L
Median 2.6 pCi/L · 1 test
- Radon levels in Wilkinson County, MSEPA zone 3
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
- Radon levels in Jefferson County, MSEPA zone 3
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
- Radon levels in Franklin County, MSEPA zone 3
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
- Radon levels in Tensas Parish, LAEPA zone 3
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
Adams County, Cities and towns
Cities and towns in Adams County
The Census Bureau estimates 30,061 residents in Adams County for July 1, 2025, 635 more than in 2020 (+2.2%). That works out to 65 people per square mile of land. Natchez, its one incorporated place, has 14,880 residents, 49.5% of the total.
Natchez is the one incorporated place here; CDC publishes no figure by town, so it reads Adams County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Natchez | 14,880 | +3.0% | 49.5% |
One incorporated place, 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).
Adams County, Homes
Homes in Adams County
Of Adams County's 14,920 homes, 71% are detached houses, against 69% across Mississippi; 13% are mobile homes. The homes are older than Mississippi's as a whole: half were built before 1971 (1986 for Mississippi), and 28% date from before 1960. 66% of occupied homes are lived in by their owner (Mississippi: 69%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Adams County | Mississippi |
|---|---|---|
| Housing units | 14,920 | 1,332,811 |
| Detached houses | 71% | 69% |
| In buildings of 5 or more | 8% | 9% |
| Mobile homes | 13% | 15% |
| Built before 1960 | 28% | 15% |
| Built since 2000 | 13% | 28% |
| Middle year built | 1971 | 1986 |
| Owner-occupied | 66% | 69% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.