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Radon Levels in Baraga County, Michigan

EPA puts Baraga County in Zone 2, its middle radon zone, and most reported tests there come back low, though 11.0% of 163 (2008 to 2017, laboratory totals) reached 4 pCi/L. Homes with elevated levels occur in all three zones, so only a test measures yours.

Data checked By Radon411Methodology

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  • Share at 4+ pCi/L

    11.0%

    15.9 pts below MI

    Baraga
    11.0%
    Michigan
    26.9%

    163 tests, 2008 to 2017

  • Median result

    1.1pCi/L

    Below action level

    Baraga
    1.1 pCi/L
    EPA
    4.0 pCi/L

    Midpoint of the tests, 2008 to 2017

  • Tests reported

    163

    72nd of 82 by tests

    Baraga
    163
    Oakland
    16,224

    Reported to CDC before any fix, 2008 to 2017

  • EPA radon zone

    Zone 2

    Moderate potential

    1. 1
    2. Zone 2
    3. 3

    1 highest, 3 lowest

    EPA predicts 2 to 4 pCi/L indoors

  • Rank in Michigan

    66 of 82

    Lowest quarter

    Baraga
    11.0%
    Lenawee
    56.7%

    By share, of 82 with 30+ tests

Read a result for Baraga County

Starts at Baraga County's median, 1.1 pCi/L

1.1pCi/L

EPA’s own thresholds; the figures are the area’s, never this home’s.

EPA’s reading of 1.1 pCi/L

Below 2 pCi/L

  1. Under 20 to 1.9 pCi/L
  2. 2 to 4consider a fix
  3. 4 and aboveEPA says fix it

This result is below 2 pCi/L, the level at which EPA says a fix should be considered. Baraga County's median reported result, 2008 to 2017.

Interpret this reading

The data

Baraga County, At a glance

Baraga County at a glance

Predicted: EPA radon zone

EPA Zone 2: moderate predicted potential

Baraga County is a county: EPA's forecast for it as a whole is an average indoor of 2 to 4 pCi/L (75 to 150 Bq/m³). It describes no single address, and homes above EPA's are found in every zone, this one included.

USGS geologic potential: Moderate across 100% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Baraga County, 2008 to 2017, laboratory

Reported results by concentration band, Baraga County, 2008 to 2017, laboratory
Under 2 pCi/L: 72%2 to 4 pCi/L: 17%4 pCi/L and above: 11%

Of 163 pre-mitigation tests reported to CDC, not homes in this area.

Reported results by concentration band, Baraga County, 2008 to 2017, laboratory: data table
Result bandTests MeasuredShare Measured
Under 2 pCi/L11771.8%
2 to 4 pCi/L2817.2%
4 pCi/L and above1811.0%
What these figures count

These are the 163 tests reported to CDC for Baraga County over 2008 to 2017 (laboratory totals), many from homes being sold or already suspected of a problem: they describe the county's reported tests, not this house.

Measured: CDC tracking data. Figure above: 2008 to 2017, laboratory. Measured data period: 2005 to 2017 (every CDC figure on file).

How to read these figures

Baraga County, Compared

Baraga County radon figures, compared

Calculated by Radon411

Baraga County reports fewer high tests than Michigan overall. 11.0% of its 163 tests over the 2008 to 2017 laboratory totals were at or above 4 pCi/L. That is 15.9 points below the 26.9% pooled from 83 Michigan counties.

Ordered from highest share down, it comes 66th of 82 Michigan counties with 30 or more tests for the same period. Nationally, every county with a figure for the same period pools to 35.7%; Baraga County sits 24.7 points below it.

Next door, the shares run from 10.8% in Houghton County to 36.2% in Iron County, with Houghton County below Baraga County. Zone 2 on EPA's map (predicted average between 2 and 4 pCi/L) and a 11.0% share point the same way here.

Half the tests came in under 1.1 pCi/L and half over it; the single highest reached 60.4 pCi/L. The rest split 71.8% under 2 pCi/L and 17.2% from 2 to 4 (Michigan: 46.4% and 26.7%).

CDC's ten-year totals for Baraga County went from 191 tests (2005 to 2014) to 163 (2008 to 2017), the share going from 8.9% to 11.0%.

Baraga County against Michigan, the United States and nearby counties, 2008 to 2017, laboratory
AreaTestsAt or above 4 pCi/LMedianDifference from Baraga County
Baraga County16311.0%1.1 pCi/LThis county
Michigan, pooled83 counties, pooled114,40726.9%Not pooled+15.9 points
United States, pooled2,661 counties, pooled2,013,54435.7%Not pooled+24.7 points
Lenawee Countyhighest in the state1,90756.7%4.6 pCi/L+45.7 points
Muskegon Countylowest in the state6293.2%1.2 pCi/L−7.8 points
Iron County, MIborders it26536.2%2.6 pCi/L+25.2 points
Marquette County, MIborders it1,08223.4%2.0 pCi/L+12.4 points
Houghton County, MIborders it1,09310.8%1.1 pCi/L−0.2 points
Where Baraga County's reported results fell, 2008 to 2017, laboratory, beside Michigan and the United States
ResultBaraga County testsBaraga County shareMichigan shareU.S. shareAgainst Michigan
Under 2 pCi/L11771.8%46.4%39.6%+25.4 points
2 to 4 pCi/L2817.2%26.7%24.7%−9.5 points
4 pCi/L and above1811.0%26.9%35.7%−15.9 points
Baraga County ranked among the 82 Michigan counties with 30 or more tests, by share at or above 4 pCi/L, 2008 to 2017, laboratory
CountyRankTestsAt or above 4 pCi/LMedian
Antrim County61 of 8234312.0%1.5 pCi/L
Menominee County62 of 8212011.7%1.2 pCi/L
Chippewa County63 of 8231911.6%0.9 pCi/L
Grand Traverse County64 of 821,61411.5%1.4 pCi/L
Ontonagon County65 of 8212311.4%1.3 pCi/L
Baraga County66 of 8216311.0%1.1 pCi/L
Houghton County67 of 821,09310.8%1.1 pCi/L
Osceola County68 of 8224610.6%1.7 pCi/L
Charlevoix County69 of 825029.8%1.4 pCi/L
Wexford County70 of 826219.7%1.5 pCi/L
Arenac County71 of 82798.9%0.7 pCi/L
Baraga County ten-year laboratory totals, against Michigan's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestMichigan, pooledChange from the row before
2008 to 201716311.0%1.1 pCi/L60.4 pCi/L26.9%+1.1 points
2007 to 20161619.9%1.1 pCi/L24.9 pCi/L26.8%−0.2 points
2006 to 201517810.1%1.1 pCi/L24.9 pCi/L26.8%+1.2 points
2005 to 20141918.9%1.1 pCi/L24.9 pCi/L26.2%First on file

Pooled shares: Radon411's sum of CDC's county counts for one period.

Baraga County, State data

Michigan's own radon test data

Measured

What Michigan's own agencies publish about radon tests in Baraga County, with their period. These are not CDC's figures and are never added to them.

MeasuredState figures, not CDC's

What Michigan EGLE reports for the ZIP codes in Baraga County

Michigan EGLE publishes its figures by ZIP code, not by county. These are the 5 ZIP codes that lie wholly or partly in Baraga County, each with the state's own figures for it. Period: About 10 years to 2026-05-15.

ZIP codes in Baraga County
ZIP codeWhat the state reports
4986179% greater than 4 pCi/L, median 7.5 pCi/L, 14 tests
499080% greater than 4 pCi/L, median 0.7 pCi/L, 26 tests
499467% greater than 4 pCi/L, median 0.8 pCi/L, 29 tests
4995815% greater than 4 pCi/L, median 0.8 pCi/L, 13 tests
499623 tests, figures not shown
  • EGLE's figures cover first-time tests only, from organizations willing to provide data.
  • EGLE does not publish figures for a ZIP code with fewer than 5 test results.
  • EGLE says the map is not intended to decide whether a home should be tested: all homes should be tested.
  • ZIP code boundaries are postal delivery areas, not legal or administrative boundaries.
  • A ZIP code that crosses the county line is listed whole; its figures cover all of it.

Measured: Michigan EGLE data, About 10 years to 2026-05-15.

Baraga County, Geology

The ground under Baraga County

Predicted

USGS's geologic map puts all of Baraga County's mapped land in one class: moderate radon potential. All of it lies in the area the map calls Marquette Highland/Keweenaw Peninsula/Gogebic Range, to which USGS gives a radon index of 11, in the moderate band (9 to 11).

USGS's geologic areas under Baraga County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Marquette Highland/Keweenaw Peninsula/Gogebic RangeGranite, iron formtion, sandstone, conglomerate, metamorphic rocks, and glacial drift.Moderate1199.9%

Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.

Baraga County beside the ground around it

Across Michigan 9.6% of the land is rated high; none of Baraga County's is. Of the 3 counties that border it, 1 has more moderate-potential ground, Iron County the most at 100%.

Share of land by USGS radon potential: Baraga County, the 3 counties bordering it and Michigan
AreaEPA zoneLow potentialModerate potentialHigh potential
Baraga CountyZone 2None99.9%None
Houghton CountyZone 216.2%81.1%None
Marquette CountyZone 2None99.9%None
Iron CountyZone 2None100%None
Michigan83 counties, pooled by land areaVaries45.0%44.3%9.6%

The map rates the ground, not the air in any home.

Local help

Baraga County, Local resources

Radon testing and mitigation in Baraga County

What Michigan's program says
Phone
800-723-6642
Email
Radon@Michigan.gov
Licensing of radon professionals
Michigan does not license or regulate radon testing and mitigation contractors.

What it means

Baraga County, Questions

Questions about radon in Baraga County

Are radon levels high in Baraga County?

Over the 2008 to 2017 laboratory totals, 11.0% of the radon tests reported to CDC for Baraga County, Michigan were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.1 pCi/L. Of 82 Michigan counties with 30 or more tests for the same period, 65 reported a higher share; pooled, the state comes to 26.9%.

Which counties border Baraga County?

Baraga County borders 3 counties: Houghton County, Marquette County and Iron County.

Products

Baraga County, Products

Testing a home in Baraga County

In Baraga County, 11.0% of 163 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 26.9% pooled across Michigan. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Baraga County; a long-term test tells the year-round average.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Baraga County homes, compared

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Baraga County, Bordering counties

Counties bordering Baraga County

Calculated by Radon411

Baraga County, Cities and towns

Cities and towns in Baraga County

Baraga County's population has barely moved since 2020: 8,169 residents on July 1, 2025 against 8,143 then, by the Census Bureau's estimates. Spread over its land, that is 9.1 people to the square mile. Its largest town, L'Anse, has 1,922 residents, 23.5% of the total. Together its 2 incorporated places hold 44.9% of those residents; the other 55.1% live outside any of them. Testing is reported here more often than across the state: CDC's 163 reported tests for 2008 to 2017 come to 20.0 for every 1,000 residents (2025 estimate), against 11.3 for Michigan.

From L'Anse to Baraga, CDC publishes no figure by town: each reads Baraga County's.

The cities and towns in Baraga County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
L'Anse1,922+1.4%23.5%
Baraga1,746−8.2%21.4%

2 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files. Residents: U.S. Census Bureau population estimates for July 1, 2025 (Vintage 2025).

Baraga County, Homes

Homes in Baraga County

Baraga County is a place of houses on their own lots: 81% of its 5,071 homes are detached single-family houses, against 72% across Michigan. Half of its homes were built before 1973, close to Michigan's 1972: 35% date from before 1960 and 14% from 2000 or later. Owners live in 77% of the occupied homes (Michigan: 73%), so for most households a test and a fix are their own to order.

Homes in Baraga County, Michigan, 2019 to 2023
HomesBaraga CountyMichigan
Housing units5,0714,599,683
Detached houses81%72%
In buildings of 5 or more5%13%
Mobile homes10%5%
Built before 196035%36%
Built since 200014%15%
Middle year built19731972
Owner-occupied77%73%

Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.