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Saint Paul, MN Radon Levels

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


Saint Paul, MN Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Ramsey County, MN
Zip Code 55101
Avg. User Level 8.40 pCi/L
User Tests 5

Minnesota's capital city in Ramsey County shows an average radon level of 9.0 pCi/L, more than double the EPA action threshold of 4.0 pCi/L. Located in the Minneapolis-St. Paul Metro area across multiple zip codes, Saint Paul's homes sit on glacial deposits over limestone bedrock that create high radon potential. The city's diverse housing stock, from historic Victorian homes to modern developments, all benefit from radon testing and mitigation when levels exceed safe limits.

8.40
pCi/L average
Above EPA Action Level

Based on 5 user-submitted radon tests for homes in Saint Paul, MN. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

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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Saint Paul, MN Radon Levels

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

Radon LevelCityHome AgeFoundation
4 pCi/L Saint Paul, MN 21-50 Years Full Basement
18 pCi/L Saint Paul, MN 51-99 Years Full Basement
10 pCi/L Saint Paul, MN 51-99 Years
4 pCi/L Saint Paul, MN 21-50 Years No Basement/All Crawl Space

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

Radon Readings Near Saint Paul, MN

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

CityDistanceAvg User LevelReadings
Lake Elmo 10.1 mi 4.00 pCi/L 1
Minneapolis 10.3 mi 5.00 pCi/L 2
Cottage Grove 11.4 mi 7.00 pCi/L 2
Hopkins 16.7 mi 7.00 pCi/L 1
Savage 17.5 mi 5.00 pCi/L 3
Eden Prairie 18.3 mi 6.00 pCi/L 1
Minnetonka 18.9 mi 5.00 pCi/L 1
Farmington 19.9 mi 7.50 pCi/L 2

Ramsey County Radon Profile

The bedrock and soils beneath Ramsey County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 1 city in Ramsey County average 7.00 pCi/L across 2 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Ramsey County.

Radon FAQ for Saint Paul, MN

What is the average radon level in Saint Paul, MN?
Based on 5 user-submitted tests, the average radon level in Saint Paul is 8.40 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 Saint Paul in?
Saint Paul and the 55101 zip code are in Ramsey 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 Saint Paul?
Radon mitigation in 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 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.