West Columbia, TX Radon Mitigation and Testing

Q: What EPA Radon Zone is West Columbia in?

West Columbia is in Brazoria County, EPA Zone 3.

Q: How much does radon mitigation cost in West Columbia?

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

Brazoria County

EPA Zone 3

Located in Brazoria County within the Houston Metro area, West Columbia sits on Gulf Coast prairie soils that typically produce lower radon levels. Testing data for this 77486 ZIP code community remains limited, making professional radon testing essential for homeowners to understand their specific risk. The area's predominantly slab-on-grade construction and sandy coastal soils generally reduce radon accumulation potential.

West Columbia, TX Radon Mitigation

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

West Columbia, TX Radon Testing

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

West Columbia Radon Facts

Key details about the radon risk profile for West Columbia and the 77486 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Brazoria County, TX

Zip Code

77486

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

West Columbia and the 77486 zip code are located in Brazoria County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for West Columbia, TX

What EPA Radon Zone is West Columbia in?

West Columbia and the 77486 zip code are in Brazoria 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 West Columbia?

Radon mitigation in West Columbia 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 West Columbia?

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