Short-term kitFirst Alert
RD1 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 2 to 4 days
Locations and reports
Radon Levels in Wakulla County, Florida
EPA puts Wakulla County in Zone 3, its lowest radon zone, and most reported tests there come back low, though 3.2% of 31 (2023) reached 4 pCi/L. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
3.2%
15.3 pts below FL
- Wakulla
- 3.2%
- Florida
- 18.5%
31 tests, 2023
Median result
0.8pCi/L
Below action level
- Wakulla
- 0.8 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2023
Tests reported
31
30th of 30 by tests
- Wakulla
- 31
- Broward
- 2,165
Reported to CDC before any fix, 2023
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Rank in Florida
18 of 30
Middle half
- Wakulla
- 3.2%
- Marion
- 44.5%
By share, of 30 with 30+ tests
Read a result for Wakulla County
Starts at Wakulla County's median, 0.8 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 0.8 pCi/L
Below 2 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is below 2 pCi/L, the level at which EPA says a fix should be considered. Wakulla County's median reported result, 2023.
The data
Wakulla County, At a glance
Wakulla County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 97% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Wakulla County, 2023
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 14.3% |
| 2015 | 7.7% |
| 2016 | 0.0% |
| 2017 | 6.3% |
| 2018 | 8.3% |
| 2019 | 4.5% |
| 2020 | 14.3% |
| 2021 | 4.8% |
| 2022 | 10.5% |
| 2023 | 3.2% |
2023: 3.2%. Across these years the share ran from 0.0% to 14.3%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
These are the 31 tests reported to CDC for Wakulla County over 2023, many from homes being sold or already suspected of a problem: they describe the county's reported tests, not this house.
Measured: CDC tracking data. Figure above: 2023. Measured data period: 2005 to 2023 (every CDC figure on file).
Wakulla County, Compared
Wakulla County radon figures, compared
Calculated by Radon411Only 1 of 31 radon tests reported for Wakulla County in 2023 reached 4 pCi/L (3.2%). The median result, 0.8 pCi/L, sits below 2, well under EPA's 4 pCi/L action level, and the top reported result was 4.5 pCi/L.
Across 49 Florida counties pooled together, 18.5% of tests reached that level, so Wakulla County runs 15.3 points below its state. Against the national pool of 33.4%, the gap is 30.2 points lower. Its place in the state: 18th of 30 Florida counties with 30 or more tests for the same period.
Zone 3 on EPA's map (predicted average under 2 pCi/L) and a 3.2% share point the same way here. Leon County, the one bordering county with a figure for the same period, reported 19.1%.
Below the action level, 25 tests (80.6%) came in under 2 pCi/L, against 57.3% statewide, and 5 tests (16.1%) fell between 2 and 4, against 24.2% statewide. USGS geology rates 97% of the county's land low radon potential.
The busiest year on file was 2022, with 57 tests reported; the quietest, 2016, had 9.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Wakulla County, Geology
The ground under Wakulla County
PredictedUSGS's geologic map puts all of Wakulla County's mapped land in one class: low radon potential. 97.0% of it lies in the area the map calls Gulf/Atlantic Lowland and Central Highland, to which USGS gives a radon index of 6, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Gulf/Atlantic Lowland and Central Highland | sand, silt, clay, gravel | Low | 6 | 97.0% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Wakulla County beside the ground around it
Across Florida 7.1% of the land is rated moderate; none of Wakulla County's is. None of the 4 counties that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
Wakulla County, Local resources
Radon testing and mitigation in Wakulla County
- Florida’s Radon ProgramFlorida’s Radon Program, run by Florida Department of Health, licenses or certifies radon professionals and offers free or discounted test kits, and answers questions about testing and mitigation in Florida.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
Protect your family by requesting a FREE radon test kit.
- Compare kits
- Professionals in Florida77 professionals are listed in Florida.
What Florida's program says
- Phone
- 850-245-4288
- PHtoxicology@FLhealth.gov
- Licensing of radon professionals
Florida Statutes require the certification of businesses and individuals providing radon services or any other radon related activity.
What it means
Wakulla County, Questions
Questions about radon in Wakulla County
Are radon levels high in Wakulla County?
In 2023, 3.2% of the radon tests reported to CDC for Wakulla County, Florida were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.8 pCi/L. Of 30 Florida counties with 30 or more tests for the same period, 17 reported a higher share; pooled, the state comes to 18.5%.
Which counties border Wakulla County?
Wakulla County borders 4 counties: Leon County, Jefferson County, Liberty County and Franklin County.
Products
Wakulla County, Products
Testing a home in Wakulla County
In Wakulla County, 3.2% of 31 tests reported to CDC in 2023 reached 4 pCi/L, against 18.5% pooled across Florida. 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 Wakulla County.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
Monitor
View Plus radon and air quality monitor
- C-NRPP 2024/25: Approved
- Battery
- Wi-Fi, Bluetooth
- Screen, app
Method: Alpha spectrometry
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Wakulla County, Bordering counties
Counties bordering Wakulla County
Calculated by Radon411- Radon levels in Leon CountyEPA zone 2
19.1%at or above 4 pCi/L
Median 1.8 pCi/L · 1,196 tests · 15.9 points above Wakulla County
- Radon levels in Jefferson CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 1.7 pCi/L · 13 tests · 3.2 points below Wakulla County
- Radon levels in Liberty CountyEPA zone 3
No CDC figure for 2023; its page reads it against its own neighbours.
- Radon levels in Franklin CountyEPA zone 3
No CDC figure for 2023; its page reads it against its own neighbours.
Wakulla County, Cities and towns
Cities and towns in Wakulla County
Wakulla County is growing: the Census Bureau puts it at 38,089 residents on July 1, 2025, up 12.3% from 33,917 in 2020. That works out to 63 people per square mile of land. No town dominates: Sopchoppy, the largest, has 487 residents, 1.3% of the total. Together its 2 incorporated places hold 2.1% of those residents; the other 97.9% live outside any of them. CDC's 31 reported tests for 2023 work out to 0.8 per 1,000 residents (2025 estimate), close to Florida's 0.7.
From Sopchoppy to St. Marks, CDC publishes no figure by town: each reads Wakulla County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Sopchoppy | 487 | +15.4% | 1.3% |
| St. Marks | 320 | +15.1% | 0.8% |
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).
Wakulla County, Homes
Homes in Wakulla County
Of Wakulla County's 14,184 homes, 65% are detached houses, against 55% across Florida; 29% are mobile homes. Much of Wakulla County is recent building: 44% of its homes have gone up since 2000 and the middle year built is 1997, against 1988 for Florida. Owners live in 84% of the occupied homes (Florida: 67%), so for most households a test and a fix are their own to order.
| Homes | Wakulla County | Florida |
|---|---|---|
| Housing units | 14,184 | 10,082,356 |
| Detached houses | 65% | 55% |
| In buildings of 5 or more | 2% | 25% |
| Mobile homes | 29% | 8% |
| Built before 1960 | 6% | 10% |
| Built since 2000 | 44% | 30% |
| Middle year built | 1997 | 1988 |
| Owner-occupied | 84% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.