Sugar Land, TX Radon Levels
Check local Sugar Land radon levels and find certified testing and mitigation professionals to keep your home safe
Sugar Land, TX Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Fort Bend County, TX
Zip Code
77478
Sugar Land in Fort Bend County is part of the Houston metropolitan area, situated in EPA Zone 3 where Gulf Coast clay soils typically produce lower radon levels. This planned suburban community features predominantly slab-on-grade homes built since the 1980s, which generally have reduced radon accumulation compared to basement construction. While testing data is limited for zip codes 77478, 77479, and 77498, occasional testing remains recommended as soil conditions can vary locally.
Sugar Land, TX Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Need Radon Mitigation or Testing in Sugar Land?
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Radon FAQ for Sugar Land, TX
What EPA Radon Zone is Sugar Land in?
Sugar Land and the 77478 zip code are in Fort Bend County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.
How much does radon mitigation cost in Sugar Land?
Radon mitigation in Sugar Land 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 Sugar Land?
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 Texas
Cities in Texas with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Lubbock | 12.70 pCi/L | 10 |
| San Antonio | 6.57 pCi/L | 7 |
| Austin | 6.14 pCi/L | 7 |
| Dallas | 8.00 pCi/L | 5 |
| Abilene | 4.50 pCi/L | 2 |
| Houston | 3.50 pCi/L | 2 |
| Plano | 6.00 pCi/L | 1 |
| Frisco | 3.00 pCi/L | 1 |
| Nacogdoches | No submissions | 0 |