
Short-term kit![]()
RA400 short-term liquid scintillation radon test kit, lab fee included
- Lab fee included
Method: Liquid scintillation
In home: 48 to 96 hours
Locations and reports
EPA puts Tunica 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
7.0%
Shelby County, 46 miles
Share at 4+ pCi/L, 341 tests, 2006 to 2015
Ground above low
None
8.1 pts below MS
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 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Tunica County
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
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
Tunica County, At a glance
Predicted: EPA radon zone
USGS geologic potential: Low across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
CDC has published no radon test figures for Tunica County. Shelby County, TN, 46 miles away, is the nearest county with a figure over the 2006 to 2015 laboratory totals.
Tunica County, Compared
No Mississippi county, Tunica County included, has a radon test figure from CDC; over the 2006 to 2015 laboratory totals, the agency's counts name 2,669 counties in other states. 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 Shelby County, TN (46 miles away) at 7.0%, Fayette County, TN (66 miles away) at 13.1% and Tipton County, TN (68 miles away) at 5.6%.
EPA's 1993 map puts Tunica 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.
Tunica County, Geology
USGS's geologic map puts all of Tunica County's mapped land in one class: low radon potential. All of it lies in the area the map calls Mississippi Alluvial Plain, to which USGS gives a radon index of 8, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Mississippi Alluvial Plain | Alluvial sand, silt, gravel, and clay. | Low | 8 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Across Mississippi 0.1% of the land is rated high; none of Tunica County's is. Of the 8 counties that border it, 2 have more moderate-potential ground, Phillips County, AR the most at 3.2%.
The map rates the ground, not the air in any home.
Local help
Tunica County, Local resources
What it means
Tunica County, Questions
No CDC testing statistics are published here for Tunica County, Mississippi yet. Of the 8 nearest counties with a figure, within 123 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 13.1%.
Tunica County borders 8 counties: Tate County, MS, DeSoto County, MS, Quitman County, MS, Lee County, AR, Panola County, MS, Phillips County, AR, Coahoma County, MS and Crittenden County, AR.
Products
Tunica County, Products
No CDC figure names Tunica County; the nearest county with one, Shelby County, TN (46 miles away), reported 7.0% 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 Tunica County.
Test kits and monitors: 1 of 3
Explore
Tunica County, Bordering counties
0.0%at or above 4 pCi/L
Median 0.1 pCi/L · 1 test
0.0%at or above 4 pCi/L
Median 0.1 pCi/L · 1 test
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
Tunica County, Cities and towns
Tunica County has been losing residents: from 9,732 in 2020 to 8,819 on July 1, 2025, a fall of 9.4% by the Census Bureau's estimates. That works out to 19 people per square mile of land. Tunica, its one incorporated place, has 819 residents, 9.3% of the total.
Tunica is the one incorporated place here; CDC publishes no figure by town, so it reads Tunica County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Tunica | 819 | −19.4% | 9.3% |
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).
Tunica County, Homes
Mobile homes are 22% of Tunica County's 4,712 homes and detached houses 44%, against 69% across Mississippi. Much of Tunica County is recent building: 34% of its homes have gone up since 2000 and the middle year built is 1994, against 1986 for Mississippi. Most occupied homes here are rented: owners live in 41% (Mississippi: 69%). A tenant can run a test; a fix is the landlord's to make.
| Homes | Tunica County | Mississippi |
|---|---|---|
| Housing units | 4,712 | 1,332,811 |
| Detached houses | 44% | 69% |
| In buildings of 5 or more | 22% | 9% |
| Mobile homes | 22% | 15% |
| Built before 1960 | 9% | 15% |
| Built since 2000 | 34% | 28% |
| Middle year built | 1994 | 1986 |
| Owner-occupied | 41% | 69% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.