
Short-term kit![]()
PicoCan short-term charcoal canister radon test
- Lab fee included
Method: Charcoal
In home: 48 to 96 hours
Locations and reports
EPA puts Lawrence County in Zone 2, its middle radon zone, and only 9 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
31.7%
Carter County
2 of 7 neighbours have 30+ tests, 2008 to 2017
Nearest county
17.9%
Boyd County, 20 miles
Share at 4+ pCi/L, 168 tests, 2008 to 2017
Ground above low
100.0%
5.7 pts above Kentucky
Share of land USGS rates moderate or high potential
Tests reported
12
Too few for a share
2005 to 2014, laboratory
EPA radon zone
Zone 2
Moderate potential
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Read a result for Lawrence 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
Lawrence County, At a glance
Predicted: EPA radon zone
Lawrence 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
CDC holds 9 reported tests for Lawrence County over the 2008 to 2017 laboratory totals, with a median of 1.7 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Lawrence County beside the counties around it is how this page reads it.
Only 9 tests were reported to CDC for Lawrence 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).
Lawrence County, Compared
CDC's largest figure for Lawrence County rests on 12 tests over the 2005 to 2014 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 8.3 points and no rank or comparison is drawn from it. Results reached as high as 3.6 pCi/L, with a middle value of 0.6 pCi/L.
Of the counties bordering it, 2 have a figure over the 2008 to 2017 laboratory totals: Carter County reported the largest share at or above 4 pCi/L, 31.7%, and Boyd County the smallest, 17.9%. Farther out, Greenup County (34 miles away) at 12.5%, Rowan County (38 miles away) at 18.9% and Pike County (45 miles away) at 17.1% have figures too. Pooled across 120 Kentucky counties, 43.7% of reported tests reached that level; across every county in the country with a figure, 35.7%.
Statewide for the same period, Meade County reported the highest share (68.4%) and Hopkins County the lowest (9.5%). EPA's 1993 map puts Lawrence 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.
Lawrence County, Geology
USGS's geologic map puts all of Lawrence County's mapped land in one class: moderate radon potential. The map puts 51.3% of Lawrence County in the area it calls Cumberland Plateau and 48.7% in Central Allegheny Plateau. USGS gives the first a radon index of 9 and the second 10, both in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Cumberland Plateau | Pennsylvanian sandstones, siltstones, and shales. | Moderate | 9 | 51.3% |
| Central Allegheny Plateau | Permian and Pennsylvanian shale, siltstone, sandstone, minor limestone. | Moderate | 10 | 48.7% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Across Kentucky 18.2% of the land is rated high; none of Lawrence County's is. Of the 7 counties that border it, none has as large a share of moderate-potential ground; Johnson County comes nearest at 100%.
The map rates the ground, not the air in any home.
Local help
Lawrence County, Local resources
What it means
Lawrence County, Questions
Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Lawrence County, Kentucky were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.7 pCi/L. Of the counties bordering it, 2 have a figure over the 2008 to 2017 laboratory totals: Carter County reported the largest share at or above 4 pCi/L, 31.7%, and Boyd County the smallest, 17.9%.
Lawrence County borders 7 counties: Johnson County, KY, Wayne County, WV, Elliott County, KY, Boyd County, KY, Martin County, KY, Carter County, KY and Morgan County, KY.
Products
Lawrence County, Products
No CDC figure names Lawrence County; the nearest county with one, Boyd County (20 miles away), reported 17.9% 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 Lawrence County; a long-term test tells the year-round average.
Test kits and monitors: 1 of 3
Explore
Lawrence County, Bordering counties
40.0%at or above 4 pCi/L
Median 3.5 pCi/L · 5 tests
31.7%at or above 4 pCi/L
Median 2.2 pCi/L · 41 tests
17.9%at or above 4 pCi/L
Median 2.1 pCi/L · 168 tests
15.8%at or above 4 pCi/L
Median 1.7 pCi/L · 19 tests
5.6%at or above 4 pCi/L
Median 1.2 pCi/L · 18 tests
0.0%at or above 4 pCi/L
Median 0.8 pCi/L · 28 tests
0.0%at or above 4 pCi/L
Median 0.1 pCi/L · 2 tests
Lawrence County, Cities and towns
About 15,765 people live in Lawrence County by the Census Bureau's estimate for July 1, 2025, 535 fewer than in 2020 (−3.3%). That works out to 38 people per square mile of land. No town dominates: Louisa, the largest, has 2,520 residents, 16.0% of the total. Together its 2 incorporated places hold 16.4% of those residents; the other 83.6% live outside any of them. Reported testing is thin here: 12 tests over 2005 to 2014, or 0.8 for every 1,000 residents (2025 estimate), where Kentucky as a whole comes to 4.4.
From Louisa to Blaine, CDC publishes no figure by town: each reads Lawrence County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Louisa | 2,520 | −5.3% | 16.0% |
| Blaine | 64 | −5.9% | 0.4% |
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).
Lawrence County, Homes
Of Lawrence County's 7,575 homes, 62% are detached houses, against 68% across Kentucky; 32% are mobile homes. Half of its homes were built before 1987, close to Kentucky's 1982: 16% date from before 1960 and 25% from 2000 or later. Owners live in 76% of the occupied homes (Kentucky: 68%), so for most households a test and a fix are their own to order.
| Homes | Lawrence County | Kentucky |
|---|---|---|
| Housing units | 7,575 | 2,010,655 |
| Detached houses | 62% | 68% |
| In buildings of 5 or more | 5% | 12% |
| Mobile homes | 32% | 11% |
| Built before 1960 | 16% | 22% |
| Built since 2000 | 25% | 24% |
| Middle year built | 1987 | 1982 |
| Owner-occupied | 76% | 68% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.