
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 Kemper 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
10.1%
Tuscaloosa County, 75 miles
Share at 4+ pCi/L, 69 tests, 2006 to 2015
Ground above low
13.3%
5.2 pts above 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 Kemper 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
Kemper County, At a glance
Predicted: EPA radon zone
USGS geologic potential: Low across 87% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
CDC has published no radon test figures for Kemper County. Tuscaloosa County, AL, 75 miles away, is the nearest county with a figure over the 2006 to 2015 laboratory totals.
Kemper County, Compared
No Mississippi county, Kemper 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 Tuscaloosa County, AL (75 miles away) at 10.1%, Jefferson County, AL (115 miles away) at 10.6% and Autauga County, AL (117 miles away) at 12.8%.
EPA's 1993 map puts Kemper County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 87% of the county's land low radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Kemper County, Geology
Most of the ground under Kemper County is one class on USGS's geologic map: 86.7% of its land is low radon potential, with 13.3% moderate. The map puts 86.7% of Kemper County in the area it calls North Central Hills/Flatwoods and 13.3% in Pontotoc Ridge/Black Prairies. USGS gives the first a radon index of 8, in the low band (5 to 8), and the second 9, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| North Central Hills/Flatwoods | Tertiary nonmarine to deltaic sediments ranging from sand to clay. | Low | 8 | 86.7% |
| Pontotoc Ridge/Black Prairies | Glauconitic sand, clay, sandy limestone, micaceous chalk, and lime. | Moderate | 9 | 13.3% |
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 Kemper County's is. Of the 6 counties that border it, 2 have more moderate-potential ground, Noxubee County the most at 78.6%.
The map rates the ground, not the air in any home.
Local help
Kemper County, Local resources
What it means
Kemper County, Questions
No CDC testing statistics are published here for Kemper County, Mississippi yet. Of the 8 nearest counties with a figure, within 142 miles, the share of tests at or above 4 pCi/L runs from 4.4% to 36.6%.
Kemper County borders 6 counties: Noxubee County, MS, Lauderdale County, MS, Sumter County, AL, Winston County, MS, Neshoba County, MS and Newton County, MS.
Products
Kemper County, Products
No CDC figure names Kemper County; the nearest county with one, Tuscaloosa County, AL (75 miles away), reported 10.1% 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 Kemper County.
Test kits and monitors: 1 of 3
Explore
Kemper County, Bordering counties
0.0%at or above 4 pCi/L
Median 2.3 pCi/L · 2 tests
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.
Kemper County, Cities and towns
About 8,600 people live in Kemper County by the Census Bureau's estimate for July 1, 2025, 368 fewer than in 2020 (−4.1%). That works out to 11 people per square mile of land. No town dominates: De Kalb, the largest, has 834 residents, 9.7% of the total. Together its 2 incorporated places hold 18.2% of those residents; the other 81.8% live outside any of them.
From De Kalb to Scooba, CDC publishes no figure by town: each reads Kemper County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| De Kalb | 834 | −4.7% | 9.7% |
| Scooba | 734 | −1.9% | 8.5% |
2 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).
Kemper County, Homes
Of Kemper County's 3,937 homes, 69% are detached houses, against 69% across Mississippi; 23% are mobile homes. Half of its homes were built before 1979, close to Mississippi's 1986: 14% date from before 1960 and 17% from 2000 or later. Owners live in 78% of the occupied homes (Mississippi: 69%), so for most households a test and a fix are their own to order.
| Homes | Kemper County | Mississippi |
|---|---|---|
| Housing units | 3,937 | 1,332,811 |
| Detached houses | 69% | 69% |
| In buildings of 5 or more | 3% | 9% |
| Mobile homes | 23% | 15% |
| Built before 1960 | 14% | 15% |
| Built since 2000 | 17% | 28% |
| Middle year built | 1979 | 1986 |
| Owner-occupied | 78% | 69% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.