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Alpharetta, GA Radon Levels

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


Alpharetta, GA Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Fulton County, GA
Zip Code 30004
Avg. User Level 6.00 pCi/L
User Tests 1

This affluent Atlanta Metro suburb in Fulton County has recorded an average radon level of 6.0 pCi/L, which exceeds the EPA action level of 4.0 pCi/L. Built on Georgia's Piedmont region where granite bedrock can contribute to elevated radon levels, Alpharetta features predominantly upscale subdivisions with full basements and crawl spaces. Residents across all zip codes (30004, 30005, 30009, 30022) should prioritize radon testing and mitigation given the documented elevated readings in this popular suburban community.

6.00
pCi/L average
Above EPA Action Level

Based on 1 user-submitted radon test for homes in Alpharetta, GA. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Alpharetta, GA Radon Mitigation

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

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Alpharetta, GA Radon Levels

User-submitted radon test readings from homes in the Alpharetta area.

Radon LevelCityHome AgeFoundation
6 pCi/L Alpharetta, GA 0-20 Years Full Basement

Have a radon test result for Alpharetta? Submit your reading to help other homeowners.

Radon Readings Near Alpharetta, GA

Compare radon levels in Alpharetta with the closest nearby cities that have user-submitted test data.

CityDistanceAvg User LevelReadings
Roswell 5.4 mi 4.00 pCi/L 1
Duluth 8.3 mi 5.00 pCi/L 1
Cumming 13.6 mi 4.50 pCi/L 4
Suwanee 14.1 mi 6.00 pCi/L 1
Canton 14.9 mi 5.00 pCi/L 1
Woodstock 15.9 mi 2.00 pCi/L 2
Marietta 16.5 mi 4.00 pCi/L 1
Lawrenceville 16.9 mi 4.67 pCi/L 3

Fulton County Radon Profile

Because of its underlying geology, Fulton 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 2 cities in Fulton County average 5.00 pCi/L across 2 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 Fulton County home regardless of zone or a neighbor's results.

Radon FAQ for Alpharetta, GA

What is the average radon level in Alpharetta, GA?
Based on 1 user-submitted test, the average radon level in Alpharetta is 6.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is Alpharetta in?
Alpharetta and the 30004 zip code are in Fulton 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.
How much does radon mitigation cost in Alpharetta?
Radon mitigation in Alpharetta 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 Alpharetta?
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.