Port Isabel, TX Radon Levels
Check local Port Isabel radon levels and find certified testing and mitigation professionals to keep your home safe
Port Isabel, TX Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Cameron County, TX
Zip Code
78578
Located at the southern tip of Texas in Cameron County near the Gulf Coast, Port Isabel's coastal sandy soils and sea-level elevation typically result in minimal radon accumulation. The 78578 zip code area lacks comprehensive testing data, though the coastal geology generally suggests lower radon risk. Residents should still consider baseline testing, as individual home characteristics can occasionally create unexpected radon entry points.
Port Isabel, 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 Port Isabel?
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Radon FAQ for Port Isabel, TX
What EPA Radon Zone is Port Isabel in?
Port Isabel and the 78578 zip code are in Cameron 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 Port Isabel?
Radon mitigation in Port Isabel 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 Port Isabel?
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 |