Short-term kit
Air Chek Short-Term radon test kit you hang, lab fee included
- Lab fee included
In home: 72 to 168 hours
Locations and reports
Radon Levels in Ocean County, New Jersey
EPA puts Ocean County in Zone 3, its lowest radon zone, and most reported tests there come back low, though 1.8% of 2,604 (2022) 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
1.8%
7.9 pts below NJ
- Ocean
- 1.8%
- New Jersey
- 9.7%
2,604 tests, 2022
Median result
0.5pCi/L
Below action level
- Ocean
- 0.5 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2022
Tests reported
2,604
17th of 21 by tests
- Ocean
- 2,604
- Bergen
- 11,440
Reported to CDC before any fix, 2022
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Rank in New Jersey
20 of 21
Lowest quarter
- Ocean
- 1.8%
- Warren
- 24.6%
By share, of 21 with 30+ tests
Read a result for Ocean County
Starts at Ocean County's median, 0.5 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 0.5 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. Ocean County's median reported result, 2022.
The data
Ocean County, At a glance
Ocean County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 84% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Ocean County, 2022
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 5.8% |
| 2015 | 4.4% |
| 2016 | 4.1% |
| 2017 | 4.2% |
| 2018 | 4.4% |
| 2019 | 4.0% |
| 2020 | 3.8% |
| 2021 | 3.2% |
| 2022 | 1.8% |
2022: 1.8%. Across these years the share ran from 1.8% to 5.8%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
These are the 2,604 tests reported to CDC for Ocean County over 2022, 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: 2022. Measured data period: 2014 to 2022 (every CDC figure on file).
Ocean County, Compared
Ocean County radon figures, compared
Calculated by Radon411Only 46 of 2,604 radon tests reported for Ocean County in 2022 reached 4 pCi/L (1.8%). The median result, 0.5 pCi/L, sits below 2, well under EPA's 4 pCi/L action level, and the top reported result was 16.4 pCi/L.
Across 21 New Jersey counties pooled together, 9.7% of tests reached that level, so Ocean County runs 7.9 points below its state. Against the national pool of 23.9%, the gap is 22.1 points lower. Its place in the state: 20th of 21 New Jersey counties with 30 or more tests for the same period.
Zone 3 on EPA's map (predicted average under 2 pCi/L) and a 1.8% share point the same way here. Of 3 neighbours with a figure, all 3 reported a larger share at or above 4 pCi/L; the spread is 2.1% (Atlantic County) to 9.8% (Monmouth County).
Below the action level, 2,394 tests (91.9%) came in under 2 pCi/L, against 74.9% statewide, and 164 tests (6.3%) fell between 2 and 4, against 15.4% statewide. Over 9 years of annual figures the share fell 4.0 points, from 5.8% in 2014 to 1.8% in 2022; its peak was 5.8% in 2014. USGS geology rates 84% of the county's land low radon potential.
The busiest year on file was 2020, with 3,447 tests reported; the quietest, 2014, had 1,233.
Ocean CountyNew Jersey, pooled
1.8% % of tests9.7% % of tests
| Year | Tests | Ocean County, at or above 4 pCi/L | New Jersey, pooled |
|---|---|---|---|
| 2014 | 1,233 | 5.8% | 12.8% |
| 2015 | 1,289 | 4.4% | 12.5% |
| 2016 | 1,637 | 4.1% | 12.5% |
| 2017 | 2,070 | 4.2% | 11.9% |
| 2018 | 2,276 | 4.4% | 11.0% |
| 2019 | 2,240 | 4.0% | 11.2% |
| 2020 | 3,447 | 3.8% | 11.7% |
| 2021 | 3,034 | 3.2% | 10.3% |
| 2022 | 2,604 | 1.8% | 9.7% |
Pooled shares: Radon411's sum of CDC's county counts for one period.
Ocean County, Geology
The ground under Ocean County
PredictedUSGS's geologic map puts all of Ocean County's mapped land in one class: low radon potential. 83.9% of it lies in the area the map calls Outer Coastal Plain, to which USGS gives a radon index of 8, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Outer Coastal Plain | Upper Tertiary-Quaternary gravel, sand, silt, clay. | Low | 8 | 83.9% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Ocean County beside the ground around it
Across New Jersey 29.8% of the land is rated high; none of Ocean County's is. Of the 3 counties that border it, 2 have more moderate-potential ground, Monmouth County the most at 36.5%.
The map rates the ground, not the air in any home.
Local help
Ocean County, Local resources
Radon testing and mitigation in Ocean County
- Radon SectionRadon Section, run by New Jersey Department of Environmental Protection, licenses or certifies radon professionals, offers free or discounted test kits and states the rule for disclosing radon when a home is sold, and answers questions about testing and mitigation in New Jersey.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
Check with your municipal or county health department for free radon test kits or purchase a test kit from a hardware store or a NJ certified radon business.
- Compare kits
- Professionals in New Jersey15 professionals are listed in New Jersey.
What New Jersey's program says
- Phone
- 800-648-0394
- Licensing of radon professionals
By law, all businesses and professionals conducting radon testing and mitigation in New Jersey must be certified by the DEP.
- Disclosure when a home is sold or rented
Under the law, the seller must provide the buyer, at the time the contract of sale is entered into, with a copy of the results of the radon test and evidence of any mitigation or treatment.
What it means
Ocean County, Questions
Questions about radon in Ocean County
Are radon levels high in Ocean County?
In 2022, 1.8% of the radon tests reported to CDC for Ocean County, New Jersey were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.5 pCi/L. Of 21 New Jersey counties with 30 or more tests for the same period, 19 reported a higher share; pooled, the state comes to 9.7%.
Which counties border Ocean County?
Ocean County borders 3 counties: Burlington County, Monmouth County and Atlantic County.
Products
Ocean County, Products
Testing a home in Ocean County
In Ocean County, 1.8% of 2,604 tests reported to CDC in 2022 reached 4 pCi/L, against 9.7% pooled across New Jersey. 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 Ocean 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
MonitorAranet
Radon One battery digital radon monitor with an e-ink screen
- C-NRPP 2024/25: Not included
- Battery
- Bluetooth
- Alarm
- Screen, app
Method: Ion chamber
First reading: Within 10 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Ocean County, Bordering counties
Counties bordering Ocean County
Calculated by Radon411- Radon levels in Monmouth CountyEPA zone 1
9.8%at or above 4 pCi/L
Median 0.7 pCi/L · 9,745 tests · 8.0 points above Ocean County
- Radon levels in Burlington CountyEPA zone 2
6.2%at or above 4 pCi/L
Median 0.9 pCi/L · 5,355 tests · 4.4 points above Ocean County
- Radon levels in Atlantic CountyEPA zone 3
2.1%at or above 4 pCi/L
Median 0.3 pCi/L · 1,047 tests · 0.3 points above Ocean County
Ocean County, Cities and towns
Cities and towns in Ocean County
Ocean County is growing: the Census Bureau puts it at 673,746 residents on July 1, 2025, up 5.6% from 638,143 in 2020. Packed into its land, that is 1,072 people per square mile. No town dominates: Point Pleasant, the largest, has 19,712 residents, 2.9% of the total. Together its 19 incorporated places hold 9.6% of those residents; the other 90.4% live outside any of them. Reported testing is thin here: 2,604 tests over 2022, or 3.9 for every 1,000 residents (2025 estimate), where New Jersey as a whole comes to 11.4.
From Point Pleasant to Mantoloking, CDC publishes no figure by town: each reads Ocean County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Point Pleasant | 19,712 | +3.9% | 2.9% |
| Beachwood | 11,340 | +4.2% | 1.7% |
| Point Pleasant Beach | 4,993 | +4.7% | 0.7% |
| South Toms River | 3,895 | +6.7% | 0.6% |
| Tuckerton | 3,734 | +4.2% | 0.6% |
| Lakehurst | 2,735 | +3.9% | 0.4% |
| Seaside Heights | 2,549 | +4.5% | 0.4% |
| Pine Beach | 2,233 | +3.8% | 0.3% |
| Seaside Park | 2,135 | +47.8% | 0.3% |
| Ocean Gate | 2,005 | +3.9% | 0.3% |
| Lavallette | 1,869 | +4.1% | 0.3% |
| Island Heights | 1,731 | +5.0% | 0.3% |
- Surf City
- Ship Bottom
- Beach Haven
- Bay Head
- Barnegat Light
- Harvey Cedars
- Mantoloking
19 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).
Ocean County, Homes
Homes in Ocean County
Of Ocean County's 295,201 homes, 75% are detached houses, against 53% across New Jersey; 8% are in buildings of five or more homes. Much of Ocean County is recent building: 23% of its homes have gone up since 2000 and the middle year built is 1981, against 1969 for New Jersey. Owners live in 80% of the occupied homes (New Jersey: 64%), so for most households a test and a fix are their own to order.
| Homes | Ocean County | New Jersey |
|---|---|---|
| Housing units | 295,201 | 3,775,842 |
| Detached houses | 75% | 53% |
| In buildings of 5 or more | 8% | 22% |
| Mobile homes | 2% | 1% |
| Built before 1960 | 16% | 38% |
| Built since 2000 | 23% | 15% |
| Middle year built | 1981 | 1969 |
| Owner-occupied | 80% | 64% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.