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Oakton, VA Radon Levels

Check local Oakton radon levels and find certified testing and mitigation professionals to keep your home safe


Oakton, VA Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Fairfax County, VA
Zip Code 22124
Avg. User Level 5.00 pCi/L
User Tests 1

Located in Fairfax County within the Washington Metro's suburban core, Oakton recorded an average radon level of 5.0 pCi/L from initial testing. This reading exceeds the EPA action level of 4.0 pCi/L, reflecting the area's complex geological conditions where Piedmont bedrock and residential development intersect. Given this elevated reading in the 22124 zip code area, homeowners should prioritize comprehensive testing and consider mitigation systems where warranted.

5.00
pCi/L average
Above EPA Action Level

Based on 1 user-submitted radon test for homes in Oakton, VA. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Oakton, VA Radon Mitigation

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Oakton, VA Radon Levels

User-submitted radon test readings from homes in the Oakton area.

Radon LevelCityHome AgeFoundation
5 pCi/L Oakton, VA 21-50 Years No Basement/All Slab

Have a radon test result for Oakton? Submit your reading to help other homeowners.

Radon FAQ for Oakton, VA

What is the average radon level in Oakton, VA?
Based on 1 user-submitted test, the average radon level in Oakton is 5.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is Oakton in?
Oakton and the 22124 zip code are in Fairfax County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.
How much does radon mitigation cost in Oakton?
Radon mitigation in Oakton typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.
Should I test for radon if I'm buying a home in Oakton?
Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.

Most Active Radon Markets in Virginia

Cities in Virginia with the most user-submitted radon test data, ranked by number of submissions.

CityAvg User Radon LevelSubmissions
Fredericksburg 7.29 pCi/L 7
King George 7.17 pCi/L 6
Leesburg 9.80 pCi/L 5
Chantilly 9.60 pCi/L 5
Fancy Gap 9.40 pCi/L 5
Williamsburg 5.80 pCi/L 5
Purcellville 10.75 pCi/L 4
Aldie 8.00 pCi/L 4
Front Royal 7.75 pCi/L 4
Bristol 7.50 pCi/L 4