Farmer City, IL Radon Levels

Q: What EPA Radon Zone is Farmer City in?

Farmer City is in De Witt County, EPA Zone 1.

Q: How much does radon mitigation cost in Farmer City?

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

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

Farmer City, IL Radon Facts

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

County De Witt County, IL

Zip Code 61842

Located in De Witt County within the central Illinois prairie region, Farmer City sits atop deep glacial moraine deposits over limestone bedrock that contribute to moderate-to-high radon potential. The community features a mix of historic homes from the early-to-mid 1900s and postwar ranch-style construction, many with full basements where radon can accumulate. Testing data remains limited for zip code 61842, making professional radon testing essential for homeowners to determine their individual risk.

7.80

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 7.80 pCi/L, based on 15 tests from 7 nearby cities. No readings have been submitted for Farmer City yet, so the closest recorded data is shown as a benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Farmer City, IL 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 Farmer City, IL

No homeowner tests have been submitted for Farmer City yet, so the closest user-submitted readings from neighboring communities are shown below. Radon varies by home — testing is the only way to know your level.

Radon Level	City	Distance	Home Age	Foundation	Submitted
5 pCi/L	Mahomet, IL	14.7 mi	21-50 Years	Partial Basement	Jan 2025
5 pCi/L	Monticello, IL	15.9 mi	21-50 Years	No Basement/All Slab	Jul 2021
4 pCi/L	Monticello, IL	15.9 mi	21-50 Years	Full Basement	Feb 2016
7 pCi/L	Champaign, IL	22.7 mi	100+ Years	Partial Basement	Mar 2026
6 pCi/L	Champaign, IL	22.7 mi	51-99 Years	No Basement/All Crawl Space	Mar 2020
4 pCi/L	Bloomington, IL	23.3 mi	51-99 Years	No Basement/All Slab	Mar 2022
14 pCi/L	Bloomington, IL	23.3 mi	0-20 Years	Full Basement	Sep 2021
16 pCi/L	Bloomington, IL	23.3 mi	0-20 Years	Full Basement	Apr 2018

Readings are drawn from the nearest cities with submitted data. Have a result for Farmer City? Submit your reading to help your neighbors.

De Witt County Radon Profile

Because of its underlying geology, De Witt County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Direct test data for De Witt County remains limited, so the closest neighboring readings are used here to represent the radon conditions homeowners are likely to encounter. As the second leading cause of lung cancer in the U.S., radon warrants testing in every De Witt County home regardless of zone or a neighbor's results.

Radon FAQ for Farmer City, IL

What EPA Radon Zone is Farmer City in?

Farmer City and the 61842 zip code are in De Witt 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 Farmer City?

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

Radon mitigation in Farmer City 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 Farmer City?

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.

Radon Levels Near Farmer City, IL

User-submitted radon levels from the cities closest to Farmer City with recorded test data. Explore nearby communities to compare local readings.

City	Distance	Avg User Level	Submissions
Le Roy	8.7 mi	5.00 pCi/L	1
Mahomet	14.7 mi	5.00 pCi/L	1
Monticello	15.9 mi	4.50 pCi/L	2
Champaign	22.7 mi	6.67 pCi/L	3
Bloomington	23.3 mi	11.33 pCi/L	3