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 Brevard County, Florida
EPA puts Brevard County in Zone 3, its lowest radon zone, and most reported tests there come back low, though 0.0% of 205 (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
- Brevard
- 0.0%
- Florida
- 18.5%
205 tests, 2023
Median result
0.7pCi/L
Below action level
- Brevard
- 0.7 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2023
Tests reported
205
14th of 30 by tests
- Brevard
- 205
- 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
- Brevard
- 0.0%
- Marion
- 44.5%
By share, of 30 with 30+ tests
Read a result for Brevard County
Starts at Brevard County's median, 0.7 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 0.7 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. Brevard County's median reported result, 2023.
The data
Brevard County, At a glance
Brevard County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 83% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Brevard County, 2023
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 12.8% |
| 2015 | 0.0% |
| 2016 | 4.2% |
| 2017 | 12.5% |
| 2018 | 2.4% |
| 2019 | 32.6% |
| 2020 | 4.1% |
| 2021 | 0.0% |
| 2022 | 12.8% |
| 2023 | 0.0% |
2023: 0.0%. Across these years the share ran from 0.0% to 32.6%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
These are the 205 tests reported to CDC for Brevard 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).
Brevard County, Compared
Brevard County radon figures, compared
Calculated by Radon411Only 0 of 205 radon tests reported for Brevard County in 2023 reached 4 pCi/L (0.0%). The median result, 0.7 pCi/L, sits below 2, well under EPA's 4 pCi/L action level, and the top reported result was 3.2 pCi/L.
Across 49 Florida counties pooled together, 18.5% of tests reached that level, so Brevard 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. Of 4 neighbours with a figure, all 4 reported a larger share at or above 4 pCi/L; the spread is 1.2% (Volusia County) to 9.5% (Orange County).
Below the action level, 196 tests (95.6%) came in under 2 pCi/L, against 57.3% statewide, and 9 tests (4.4%) fell between 2 and 4, against 24.2% statewide. Over 9 years of annual figures the share fell 12.8 points, from 12.8% in 2014 to 0.0% in 2023; its peak was 32.6% in 2019. USGS geology rates 83% of the county's land low radon potential.
The busiest year on file was 2022, with 987 tests reported; the quietest, 2016, had 24.
Brevard CountyFlorida, pooled
0.0% % of tests18.5% % of tests
| Year | Tests | Brevard County, at or above 4 pCi/L | Florida, pooled |
|---|---|---|---|
| 2014 | 47 | 12.8% | 25.7% |
| 2015 | 99 | 0.0% | 26.5% |
| 2017 | 112 | 12.5% | 21.7% |
| 2018 | 42 | 2.4% | 23.5% |
| 2019 | 172 | 32.6% | 29.6% |
| 2020 | 98 | 4.1% | 23.2% |
| 2021 | 78 | 0.0% | 15.4% |
| 2022 | 987 | 12.8% | 22.8% |
| 2023 | 205 | 0.0% | 18.5% |
Pooled shares: Radon411's sum of CDC's county counts for one period.
Brevard County, Geology
The ground under Brevard County
PredictedUSGS's geologic map puts all of Brevard County's mapped land in one class: low radon potential. 82.5% 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 | 82.5% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Brevard County beside the ground around it
Across Florida 7.1% of the land is rated moderate; none of Brevard 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
Brevard County, Local resources
Radon testing and mitigation in Brevard County
Listed radon businesses with an address in Brevard 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.
Listed radon professionals by town: Melbourne
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
Brevard County, Questions
Questions about radon in Brevard County
Are radon levels high in Brevard County?
In 2023, 0.0% of the radon tests reported to CDC for Brevard County, Florida were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.7 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 Brevard County?
Brevard County borders 5 counties: Osceola County, Orange County, Seminole County, Indian River County and Volusia County.
Products
Brevard County, Products
Testing a home in Brevard County
In Brevard County, 0.0% of 205 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 Brevard 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
MonitorSafetySiren
Pro4 plug-in radon detector with a display and alarm
- C-NRPP 2024/25: Not included
- Plug-in
- Alarm
- Screen
First reading: Within 48 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Brevard County, Bordering counties
Counties bordering Brevard County
Calculated by Radon411- Radon levels in Orange CountyEPA zone 3
9.5%at or above 4 pCi/L
Median 0.9 pCi/L · 1,107 tests · 9.5 points above Brevard County
- Radon levels in Indian River CountyEPA zone 3
6.7%at or above 4 pCi/L
Median 1.3 pCi/L · 15 tests · 6.7 points above Brevard County
- Radon levels in Seminole CountyEPA zone 3
1.6%at or above 4 pCi/L
Median 0.6 pCi/L · 190 tests · 1.6 points above Brevard County
- Radon levels in Osceola CountyEPA zone 3
1.4%at or above 4 pCi/L
Median 1.2 pCi/L · 70 tests · 1.4 points above Brevard County
- Radon levels in Volusia CountyEPA zone 3
1.2%at or above 4 pCi/L
Median 0.6 pCi/L · 163 tests · 1.2 points above Brevard County
Brevard County, Cities and towns
Cities and towns in Brevard County
Brevard County is growing: the Census Bureau puts it at 663,982 residents on July 1, 2025, up 9.1% from 608,765 in 2020. That works out to 654 people per square mile of land. Its largest town, Palm Bay, has 148,092 residents, 22.3% of the total. Together its 16 incorporated places hold 64.2% of those residents; the other 35.8% live outside any of them. Reported testing is thin here: 205 tests over 2023, or 0.3 for every 1,000 residents (2025 estimate), where Florida as a whole comes to 0.7.
From Palm Bay to Melbourne Village, CDC publishes no figure by town: each reads Brevard County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Palm Bay | 148,092 | +23.2% | 22.3% |
| Melbourne | 87,097 | +2.4% | 13.1% |
| Titusville | 49,800 | +2.0% | 7.5% |
| Rockledge | 31,343 | +13.1% | 4.7% |
| West Melbourne | 31,285 | +17.7% | 4.7% |
| Cocoa | 19,777 | +3.9% | 3.0% |
| Satellite Beach | 11,365 | +0.9% | 1.7% |
| Cocoa Beach | 11,314 | −0.3% | 1.7% |
| Cape Canaveral | 9,962 | −0.2% | 1.5% |
| Indian Harbour Beach | 8,914 | −0.8% | 1.3% |
| Grant-Valkaria | 5,982 | +32.3% | 0.9% |
| Melbourne Beach | 3,260 | +0.9% | 0.5% |
- Malabar
- Indialantic
- Palm Shores
- Melbourne Village
16 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).
Brevard County, Homes
Homes in Brevard County
Of Brevard County's 294,461 homes, 66% are detached houses, against 55% across Florida; 18% are in buildings of five or more homes. Half of its homes were built before 1987, close to Florida's 1988: 8% date from before 1960 and 28% from 2000 or later. Owners live in 77% of the occupied homes (Florida: 67%), so for most households a test and a fix are their own to order.
| Homes | Brevard County | Florida |
|---|---|---|
| Housing units | 294,461 | 10,082,356 |
| Detached houses | 66% | 55% |
| In buildings of 5 or more | 18% | 25% |
| Mobile homes | 7% | 8% |
| Built before 1960 | 8% | 10% |
| Built since 2000 | 28% | 30% |
| Middle year built | 1987 | 1988 |
| Owner-occupied | 77% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.