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Woodbridge, VA Radon Levels

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


Woodbridge, VA Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Prince William County, VA
Zip Code 22191
Avg. User Level 4.50 pCi/L
User Tests 4

Located in Prince William County within the Washington Metro area, Woodbridge shows an average radon level of 4.5 pCi/L based on local testing data, which exceeds the EPA's action level of 4.0 pCi/L. The community's position on Piedmont crystalline bedrock and its predominantly suburban housing with full basements creates conditions where radon can accumulate. Residents in zip codes 22191, 22192, and 22193 should prioritize radon testing and consider mitigation if levels exceed recommended thresholds.

4.50
pCi/L average
Above EPA Action Level

Based on 4 user-submitted radon tests for homes in Woodbridge, VA. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Woodbridge, VA Radon Mitigation

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Woodbridge, VA Radon Levels

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

Radon LevelCityHome AgeFoundation
4 pCi/L Woodbridge, VA 0-20 Years Full Basement
7 pCi/L Woodbridge, VA 0-20 Years Full Basement
3 pCi/L Woodbridge, VA 21-50 Years Full Basement
4 pCi/L Woodbridge, VA 21-50 Years Full Basement

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

Radon FAQ for Woodbridge, VA

What is the average radon level in Woodbridge, VA?
Based on 4 user-submitted tests, the average radon level in Woodbridge is 4.50 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 Woodbridge in?
Woodbridge and the 22191 zip code are in Prince William County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.
How much does radon mitigation cost in Woodbridge?
Radon mitigation in Woodbridge 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 Woodbridge?
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