Karnes City, TX Radon Levels
Check local Karnes City radon levels and find certified testing and mitigation professionals to keep your home safe
Karnes City, TX Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Karnes County, TX
Zip Code
78118
This Karnes County community within the San Antonio Metro currently has limited radon testing information available. South Texas geology, dominated by limestone and clay formations, can occasionally produce elevated radon readings in certain areas. Testing is recommended for homeowners in zip code 78118, especially those with basement areas or enclosed lower-level spaces.
Karnes City, 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 Karnes City?
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1-800-299-3578
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Radon FAQ for Karnes City, TX
What EPA Radon Zone is Karnes City in?
Karnes City and the 78118 zip code are in Karnes 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 Karnes City?
Radon mitigation in Karnes City 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 Karnes City?
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 |