Mesa, CO Radon Levels

Q: What EPA Radon Zone is Mesa in?

Mesa is in Mesa County, EPA Zone 1.

Q: Why are radon readings shown from areas near Mesa?

No homeowner radon tests have been submitted for Mesa yet, so readings from the closest cities and the Mesa County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Mesa?

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

Check local Mesa radon levels and find certified testing and mitigation professionals to keep your home safe

Mesa, CO Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Mesa County, CO

Zip Code 81643

Situated in Mesa County near the Grand Junction Metro area, this Colorado community sits within EPA Zone 1 where elevated radon levels are commonly expected. The region's underlying geology includes uranium-bearing formations and sandstone deposits that naturally produce radon gas, particularly relevant given the area's mining history. Limited local testing data makes it crucial for residents to conduct their own radon measurements to understand their specific exposure risk.

9.13

pCi/L area average

Above EPA Action Level

Mesa County average: 9.13 pCi/L, based on 8 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Mesa itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Mesa, CO Radon Mitigation

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

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Radon Readings Near Mesa, CO

No homeowner tests have been submitted for Mesa yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Cedaredge	19.7 mi	4.00 pCi/L	1
Grand Junction	24.1 mi	7.86 pCi/L	7
Delta	29.5 mi	7.00 pCi/L	3
Rifle	31.6 mi	7.00 pCi/L	1
Paonia	34.0 mi	6.00 pCi/L	1
Olathe	39.4 mi	5.00 pCi/L	2
New Castle	41.2 mi	4.00 pCi/L	1
Crawford	41.6 mi	8.00 pCi/L	1

Mesa County Radon Profile

Because of its underlying geology, Mesa County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 3 cities in Mesa County average 9.13 pCi/L across 8 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Mesa County home regardless of zone or a neighbor's results.

Radon FAQ for Mesa, CO

What EPA Radon Zone is Mesa in?

Mesa and the 81643 zip code are in Mesa County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

Why are radon readings shown from areas near Mesa?

No homeowner radon tests have been submitted for Mesa yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Mesa County average—are the best available indicator of local conditions until Mesa homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Mesa?

Radon mitigation in Mesa 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 Mesa?

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.