Short-term kitKidde
442020 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 3 days
Locations and reports
Radon Levels in Bay County, Florida
EPA puts Bay County in Zone 3, its lowest radon zone, and most reported tests there come back low, though 0.0% of 133 (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
0.0%
18.5 pts below FL
- Bay
- 0.0%
- Florida
- 18.5%
133 tests, 2023
Median result
0.4pCi/L
Below action level
- Bay
- 0.4 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2023
Tests reported
133
21st of 30 by tests
- Bay
- 133
- 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
23 of 30
Middle half
- Bay
- 0.0%
- Marion
- 44.5%
By share, of 30 with 30+ tests
Read a result for Bay County
Starts at Bay County's median, 0.4 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 0.4 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. Bay County's median reported result, 2023.
The data
Bay County, At a glance
Bay County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 86% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Bay County, 2023
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 0.0% |
| 2015 | 0.0% |
| 2016 | 0.0% |
| 2017 | 0.0% |
| 2018 | 0.0% |
| 2019 | 0.0% |
| 2020 | 0.0% |
| 2021 | 0.0% |
| 2022 | 0.0% |
| 2023 | 0.0% |
2023: 0.0%. Across these years the share ran from 0.0% to 0.0%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
These are the 133 tests reported to CDC for Bay 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).
Bay County, Compared
Bay County radon figures, compared
Calculated by Radon411Only 0 of 133 radon tests reported for Bay County in 2023 reached 4 pCi/L (0.0%). The median result, 0.4 pCi/L, sits below 2, well under EPA's 4 pCi/L action level, and the top reported result was 2.0 pCi/L.
Across 49 Florida counties pooled together, 18.5% of tests reached that level, so Bay County runs 18.5 points below its state. Against the national pool of 33.4%, the gap is 33.4 points lower. Its place in the state: 23rd 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 0.0% share point the same way here.
Below the action level, 132 tests (99.2%) came in under 2 pCi/L, against 57.3% statewide, and 1 tests (0.8%) fell between 2 and 4, against 24.2% statewide. Over 4 years of annual figures the share held within 2 points, from 0.0% in 2019 to 0.0% in 2023; its peak was 0.0% in 2019. USGS geology rates 86% of the county's land low radon potential.
The busiest year on file was 2023, with 133 tests reported; the quietest, 2015, had 7.
Bay CountyFlorida, pooled
0.0% % of tests18.5% % of tests
| Year | Tests | Bay County, at or above 4 pCi/L | Florida, pooled |
|---|---|---|---|
| 2019 | 33 | 0.0% | 29.6% |
| 2020 | 44 | 0.0% | 23.2% |
| 2022 | 30 | 0.0% | 22.8% |
| 2023 | 133 | 0.0% | 18.5% |
Pooled shares: Radon411's sum of CDC's county counts for one period.
Bay County, Geology
The ground under Bay County
PredictedUSGS's geologic map puts all of Bay County's mapped land in one class: low radon potential. The map puts 62.5% of Bay County in the area it calls Gulf/Atlantic Lowland and Central Highland and 23.3% in Northern Highland. USGS gives both 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 | 62.5% |
| Northern Highland | Sand, silt, clay, gravel | Low | 6 | 23.3% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Bay County beside the ground around it
Across Florida 7.1% of the land is rated moderate; none of Bay 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
Bay County, Local resources
Radon testing and mitigation in Bay 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
Bay County, Questions
Questions about radon in Bay County
Are radon levels high in Bay County?
In 2023, 0.0% of the radon tests reported to CDC for Bay County, Florida were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.4 pCi/L. Of 30 Florida counties with 30 or more tests for the same period, 22 reported a higher share; pooled, the state comes to 18.5%.
Which counties border Bay County?
Bay County borders 5 counties: Washington County, Calhoun County, Gulf County, Walton County and Jackson County.
Products
Bay County, Products
Testing a home in Bay County
In Bay County, 0.0% of 133 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 Bay 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
Monitor
View Radon Wi-Fi radon monitor with an e-paper display
- C-NRPP 2024/25: Approved
- Battery
- Wi-Fi, Bluetooth
- Screen, app
Method: Alpha spectrometry
Readings: Every 60 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Bay County, Bordering counties
Counties bordering Bay County
Calculated by Radon411- Radon levels in Washington CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.5 pCi/L · 1 test · 0.0 points above Bay County
- Radon levels in Calhoun CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 3.9 pCi/L · 1 test · 0.0 points above Bay County
- Radon levels in Jackson CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.9 pCi/L · 2 tests · 0.0 points above Bay County
- Radon levels in Gulf CountyEPA zone 3
No CDC figure for 2023; its page reads it against its own neighbours.
- Radon levels in Walton CountyEPA zone 3
No CDC figure for 2023; its page reads it against its own neighbours.
Bay County, Cities and towns
Cities and towns in Bay County
Bay County is growing: the Census Bureau puts it at 204,479 residents on July 1, 2025, up 17.1% from 174,551 in 2020. That works out to 270 people per square mile of land. No town dominates: Panama City, the largest, has 37,806 residents, 18.5% of the total. Together its 7 incorporated places hold 53.6% of those residents; the other 46.4% live outside any of them. CDC's 133 reported tests for 2023 work out to 0.7 per 1,000 residents (2025 estimate), close to Florida's 0.7.
From Panama City to Mexico Beach, CDC publishes no figure by town: each reads Bay County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Panama City | 37,806 | +15.0% | 18.5% |
| Lynn Haven | 22,479 | +20.5% | 11.0% |
| Panama City Beach | 20,375 | +13.3% | 10.0% |
| Callaway | 14,369 | +10.6% | 7.0% |
| Springfield | 8,551 | +6.4% | 4.2% |
| Parker | 4,832 | +21.4% | 2.4% |
| Mexico Beach | 1,275 | +38.7% | 0.6% |
7 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).
Bay County, Homes
Homes in Bay County
Fewer than six in ten of Bay County's 106,209 homes are detached houses (51%, against 55% across Florida); the rest are attached, in shared buildings or mobile. Half of its homes were built before 1992, close to Florida's 1988: 8% date from before 1960 and 37% from 2000 or later. 68% of occupied homes are lived in by their owner (Florida: 67%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Bay County | Florida |
|---|---|---|
| Housing units | 106,209 | 10,082,356 |
| Detached houses | 51% | 55% |
| In buildings of 5 or more | 26% | 25% |
| Mobile homes | 12% | 8% |
| Built before 1960 | 8% | 10% |
| Built since 2000 | 37% | 30% |
| Middle year built | 1992 | 1988 |
| Owner-occupied | 68% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.