South Saint Paul, MN Radon Levels

Q: What EPA Radon Zone is South Saint Paul in?

South Saint Paul is in Dakota County, EPA Zone 1.

Q: How much does radon mitigation cost in South Saint Paul?

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

Check local South Saint Paul radon levels and find certified testing and mitigation professionals to keep your home safe

South Saint Paul, MN Radon Facts

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

County Dakota County, MN

Zip Code 55075

Located in Dakota County within the Minneapolis-St. Paul Metro area, South Saint Paul sits on Mississippi River bluff terrain where glacial deposits meet underlying sandstone and limestone formations. While specific radon testing data for the 55075 zip code is not available, the area's geological conditions warrant attention to indoor air quality. The community's mix of early-to-mid 20th century homes and newer construction, many with full basements, creates varying potential for radon accumulation.

9.33

pCi/L area average

Above EPA Action Level

Dakota County average: 9.33 pCi/L, based on 6 user-submitted tests across 4 cities in the county. No homeowner readings have been submitted for South Saint Paul 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+

South Saint Paul, MN 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 South Saint Paul, MN

No homeowner tests have been submitted for South Saint Paul 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
Saint Paul	5.0 mi	8.40 pCi/L	5
Cottage Grove	6.6 mi	7.00 pCi/L	2
Lake Elmo	10.1 mi	4.00 pCi/L	1
Minneapolis	14.4 mi	5.00 pCi/L	2
Hastings	15.0 mi	8.50 pCi/L	2
Farmington	16.4 mi	7.50 pCi/L	2
Savage	17.0 mi	5.00 pCi/L	3
Lakeville	18.0 mi	6.00 pCi/L	1

Dakota County Radon Profile

Because of its underlying geology, Dakota 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 4 cities in Dakota County average 9.33 pCi/L across 6 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 Dakota County home regardless of zone or a neighbor's results.

Radon FAQ for South Saint Paul, MN

What EPA Radon Zone is South Saint Paul in?

South Saint Paul and the 55075 zip code are in Dakota 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 South Saint Paul?

No homeowner radon tests have been submitted for South Saint Paul yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Dakota County average—are the best available indicator of local conditions until South Saint Paul 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 South Saint Paul?

Radon mitigation in South Saint Paul 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 South Saint Paul?

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.