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Locations and reports

Radon in Lakewood, Colorado

EPA puts Jefferson County, where Lakewood is, in Zone 1, its highest radon zone. Homes with elevated levels occur in all three zones, so only a test measures yours.

Data checked By Radon411Methodology

Predicted
Zone 1Highest predicted potential
Measured
41.8%of 3,068 tests reported to CDC for Jefferson County (2023) were at or above 4 pCi/L
Your home
Test to knowNo area figure here is a reading of your home.

The data

Lakewood, What is published

What is published for Lakewood

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 Lakewood, so every radon figure on this page belongs to a county and is labelled with it. Only a test tells you about one home.

Jefferson County has an EPA zone and its own CDC test figures, shown below. About 156,927 people live in Lakewood.

Lakewood, Counties

The county Lakewood lies in

Measured

Each 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.

Jefferson CountyZone 1Highest predicted potential

41.8%
Reported tests at or above 4 pCi/L, 2023
3.2 pCi/L
Median reported result
3,068 tests
Tests reported to CDC
10
Annual years on file

The median reported pre-mitigation result for 2023 was 3.2 pCi/L in Jefferson 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 Lakewood, in one dated file.

  • Your area's radon record, explained.
  • Your plan to test this week.
  • Fix costs and pros near you.

Save 64%Sale price: $8.99Price after the sale: $25Ends Jan 31Then $25

Get the Lakewood BriefSee a free sample

Area data, not a test of the building.

Local help

Lakewood, Local resources

Local resources for Lakewood

Who to ask in Colorado: its radon program, test kits and professionals.

What Colorado's program says
Licensing of radon professionals
Listed contractors are certified by the National Radon Proficiency Program or the National Radon Safety Board, and must be licensed by the Colorado Department of Regulatory Agencies.
Disclosure when a home is sold or rented
As of August 7, 2023, landlords in Colorado are required to disclose radon information when a tenant signs a lease agreement.

What it means

Lakewood, Questions

Questions about radon in Lakewood

What radon zone is Lakewood in?

EPA's Map of Radon Zones classifies counties, not cities. Jefferson County is 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 Lakewood's counties?

For 2023, the share of radon tests reported to CDC that were at or above 4 pCi/L was 41.8% in Jefferson County (3,068 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 Lakewood?

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 Jefferson County, the county Lakewood lies in.