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Stanhope, NJ Radon Levels

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


Stanhope, NJ Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Sussex County, NJ
Zip Code 07874
Avg. User Level 5.00 pCi/L
User Tests 3

Nestled in northwestern Sussex County within the Allentown Metro area, Stanhope sits on glacial deposits and crystalline bedrock typical of New Jersey's Highlands region. The borough features a mix of Victorian-era homes and newer developments, many with full basements characteristic of northern New Jersey construction. Current testing data shows an average radon level of 5.0 pCi/L, exceeding the EPA's 4.0 pCi/L action threshold, making professional mitigation important for residents in zip code 07874.

5.00
pCi/L average
Above EPA Action Level

Based on 3 user-submitted radon tests for homes in Stanhope, NJ. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Stanhope, NJ Radon Mitigation

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

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Stanhope, NJ Radon Levels

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

Radon LevelCityHome AgeFoundation
2 pCi/L Stanhope, NJ No Basement/All Crawl Space
7 pCi/L Stanhope, NJ 21-50 Years
6 pCi/L Stanhope, NJ 51-99 Years Full Basement

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

Radon FAQ for Stanhope, NJ

What is the average radon level in Stanhope, NJ?
Based on 3 user-submitted tests, the average radon level in Stanhope is 5.00 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 Stanhope in?
Stanhope and the 07874 zip code are in Sussex 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 Stanhope?
Radon mitigation in Stanhope 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 Stanhope?
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 New Jersey

Cities in New Jersey with the most user-submitted radon test data, ranked by number of submissions.

CityAvg User Radon LevelSubmissions
Cherry Hill 6.44 pCi/L 9
Hillsborough 6.14 pCi/L 7
Freehold 10.50 pCi/L 6
Marlboro 6.17 pCi/L 6
Bernardsville 7.00 pCi/L 5
Phillipsburg 7.00 pCi/L 5
Edison 5.60 pCi/L 5
Princeton 5.40 pCi/L 5
Sussex 9.75 pCi/L 4
Piscataway 6.75 pCi/L 4