Jefferson City, MO Radon Mitigation and Testing

Q: What is the average radon level in Jefferson City, MO?

Based on 1 user-submitted tests, the average radon level is 6.00 pCi/L.

Q: What EPA Radon Zone is Jefferson City in?

Jefferson City is in Cole County, EPA Zone 2.

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

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

Avg: 6.00 pCi/L

Cole County

EPA Zone 2

1 user test

Missouri's capital city in Cole County shows radon levels averaging 6.0 pCi/L, exceeding the EPA action level and reflecting the region's limestone bedrock geology. Jefferson City Metro residents across zip codes 65101 and 65109 should prioritize radon testing given this elevated reading. The city's mix of historic government buildings and residential neighborhoods often feature basements where radon can concentrate.

6.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Jefferson City, MO Radon Mitigation

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

Jefferson City, MO Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Jefferson City, Missouri Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
6 pCi/L	Jefferson City, MO	100+ Years	Full Basement	Nov 2020

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

Jefferson City Radon Facts

Key details about the radon risk profile for Jefferson City and the 65101 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Cole County, MO

Zip Code

65101

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

6.00 pCi/L

User Tests Submitted

Jefferson City and the 65101 zip code are located in Cole County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Jefferson City, MO

What is the average radon level in Jefferson City, MO?

Based on 1 user-submitted test, the average radon level in Jefferson City 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 Jefferson City in?

Jefferson City and the 65101 zip code are in Cole County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Jefferson City?

Radon mitigation in Jefferson 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 Jefferson 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.

Most Active Radon Markets in Missouri

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Troy	8.50 pCi/L	4
Lees Summit	7.00 pCi/L	3
Columbia	3.00 pCi/L	2
House Springs	7.00 pCi/L	1
Kansas City	7.00 pCi/L	1
Springfield	7.00 pCi/L	1
Independence	5.00 pCi/L	1
Wentzville	No submissions	0