San Diego, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is San Diego in?

San Diego is in Duval County, EPA Zone Unknown.

Q: How much does radon mitigation cost in San Diego?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Duval County

EPA Zone Unknown

Located in rural Duval County in South Texas, this small community currently lacks comprehensive radon testing data, making individual home testing essential for residents. The region's sandy coastal plain soils and limestone bedrock formations can potentially create conditions for radon accumulation. Homeowners in zip code 78384 should consider professional radon testing to establish baseline readings for their properties.

San Diego, TX Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

San Diego, TX Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

San Diego Radon Facts

Key details about the radon risk profile for San Diego and the 78384 zip code area.

EPA Radon Zone

Unknown

County

Duval County, TX

Zip Code

78384

Predicted Screening Level

Unknown

San Diego and the 78384 zip code are located in Duval County, which has an EPA assigned Radon Zone of Unknown. A radon zone of Unknown does not have sufficient data for classification. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for San Diego, TX

What EPA Radon Zone is San Diego in?

San Diego and the 78384 zip code are in Duval County, which has an EPA assigned Radon Zone of Unknown. A zone of Unknown does not have sufficient data for classification.

How much does radon mitigation cost in San Diego?

Radon mitigation in San Diego 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 San Diego?

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 with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Lubbock	12.67 pCi/L	9
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