Listed for: Testing
Verified:Kansas state license
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Locations and reports
Radon in Kansas City, Missouri
Kansas City lies in 4 counties, in EPA Zone 1. Homes with elevated levels occur in all three zones, so the only way to know your home's level is to test it.
Data checked By Radon411Methodology
- Predicted
- Zone 1Highest predicted potential
- Measured
- By countyEach county's own CDC figures are set side by side below.
- Your home
- Test to knowNo area figure here is a reading of your home.
The data
Kansas City, What is published
What is published for Kansas City
Information:
Radon data is published by county, not by city
Radon data is published by county, not by city. EPA assigns radon zones to counties, and CDC publishes radon test figures by county. Neither publishes a figure for Kansas City, so every radon figure on this page belongs to a county and is labelled with it. Only a test tells you about one home.
Each county has its own CDC test figures, shown below side by side. About 521,220 people live in Kansas City.
Kansas City, Counties
Kansas City's counties, side by side
MeasuredEach county's own EPA zone and its own published CDC figures for 2023, the newest period any of them has. A county without a figure for that period is shown without one, never with a figure from another year.
- Cass County
- EPA zone
- Zone 1: Highest predicted potential
- At or above 4 pCi/L
- 62.5%
- Median result
- 4.6 pCi/L
- Tests reported
- 24 tests
- Annual years on file
- 10
- Clay County
- EPA zone
- Zone 1: Highest predicted potential
- At or above 4 pCi/L
- 44.6%
- Median result
- 3.6 pCi/L
- Tests reported
- 83 tests
- Annual years on file
- 10
- Jackson County
- EPA zone
- Zone 1: Highest predicted potential
- At or above 4 pCi/L
- 44.1%
- Median result
- 3.4 pCi/L
- Tests reported
- 204 tests
- Annual years on file
- 10
- Platte County
- EPA zone
- Zone 1: Highest predicted potential
- At or above 4 pCi/L
- 37.9%
- Median result
- 3.0 pCi/L
- Tests reported
- 29 tests
- Annual years on file
- 10
| County | EPA zone | Reported tests at or above 4 pCi/L | Median reported result | Tests reported | Annual years on file |
|---|---|---|---|---|---|
| Cass County | Zone 1: Highest predicted potential | 62.5% | 4.6 pCi/L | 24 tests | 10 |
| Clay County | Zone 1: Highest predicted potential | 44.6% | 3.6 pCi/L | 83 tests | 10 |
| Jackson County | Zone 1: Highest predicted potential | 44.1% | 3.4 pCi/L | 204 tests | 10 |
| Platte County | Zone 1: Highest predicted potential | 37.9% | 3.0 pCi/L | 29 tests | 10 |
The median reported pre-mitigation result for 2023 was 4.6 pCi/L in Cass County, 3.6 pCi/L in Clay County, 3.4 pCi/L in Jackson County and 3.0 pCi/L in Platte County.
CDC counts radon tests that were reported to it, not homes, and figures from few tests can swing widely from year to year. Each county’s report has its full history.
Predicted: EPA Map of Radon Zones, by county. Measured: CDC tracking data, by county, 2023.
Radon Action Brief
National Radon Action MonthPre-sale
The radon brief for Kansas City, in one dated file.
- Your area's radon record, explained. EPA's zone and any CDC tests.
- Your plan to test this week. Which test, where it goes, how long.
- Fix costs and pros near you. Costs, EPA's checklist, listed pros.
Save 64%Sale price: $8.99Price after the sale: $25Ends Jan 31Then $25Sale ends January 31, then $25
Local help
Kansas City, Professionals
Radon professionals listed in Kansas City
Businesses whose listed city is Kansas City, from the state registries and listings in the Radon411 directory, with the same business and certification status the directory shows.
Radon professionals listed in Kansas City: 1 of 6
12 listings with Kansas City as the city. See radon mitigation and testing in Kansas City, or all radon professionals in Missouri.
Kansas City, Local resources
Local resources for Kansas City
Who to ask in Missouri: its radon program, test kits and professionals.
- Missouri Radon ProgramMissouri Department of Health and Senior ServicesMissouri’s radon program answers questions about testing, mitigation and the rules where you live.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
Free radon test kits are available for Missouri residents (limit one per household).
- Compare kits
- Professionals in Missouri12 listings cover Kansas City.
What Missouri's program says
- Phone
- 573-751-6102
- radon@health.mo.gov
What it means
Kansas City, Questions
Questions about radon in Kansas City
What radon zone is Kansas City in?
EPA's Map of Radon Zones classifies counties, not cities. Cass County, Clay County, Jackson County and Platte County are in Zone 1 (highest predicted potential). A zone is a prediction for a whole county and never tells you the level in one home.
How many radon tests come back high in Kansas City's counties?
For 2023, the share of radon tests reported to CDC that were at or above 4 pCi/L was 62.5% in Cass County (24 tests), 44.6% in Clay County (83 tests), 44.1% in Jackson County (204 tests) and 37.9% in Platte County (29 tests). Each is that county's own figure, counting tests reported to CDC, not homes. Radon411 does not average or combine them into a figure for the city.
Should I test my home in Kansas City?
Yes. Testing is the only way to know the radon level in a specific building. EPA recommends fixing a home when the radon level is 4 pCi/L or higher. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. How to test a home.
The answers use the published figures of Cass County, Clay County, Jackson County and Platte County, the counties Kansas City lies in.
Explore
Kansas City, Next steps
What to do next
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