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Radon Levels in Saginaw County, Michigan

Zone 3Lower predicted potential816 square miles · 6 bordering counties

What this means for you

  • Your area: EPA rates Saginaw County Zone 3, the lowest of its three radon zones. That is a prediction for the whole county, and homes with elevated levels occur in all three zones.
  • Local tests: Of 3,037 radon tests reported to CDC for Saginaw County (2008 to 2017), 17.0% were at or above 4 pCi/L, EPA's action level.
  • Your home: The only way to know your home’s level is to test it.

pCi/L (picocuries per liter) is the unit radon is measured in. EPA recommends fixing a home at 4 pCi/L or above, its action level.

Over the 2008 to 2017 laboratory totals, 17.0% of the radon tests reported to CDC for Saginaw County, Michigan came back at or above the EPA action level of 4 pCi/L, and the median result was 1.7 pCi/L. EPA's Map of Radon Zones places the county in Zone 3, lower predicted potential. Radon levels vary from home to home, so only a test measures the level in yours.

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

EPA predicts an average indoor of less than 2 pCi/L (less than 75 Bq/m³) across the county as a whole.

This is a county-level geologic prediction. It is not a measurement of any address, and houses with elevated radon are found in all three zones.

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

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

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

Tests reported
3,037
At or above 4 pCi/L
17.0%
Median result
1.7 pCi/L
Reported results by concentration band, Saginaw County, 2008 to 2017, laboratory
Under 2 pCi/L: 57%2 to 4 pCi/L: 27%4 pCi/L and above: 17%

Of 3,037 pre-mitigation tests reported to CDC, not homes in this area. CDC publishes the share in each band, not a count per band, so the per-band counts in the table are calculated by Radon411 and rounded to add up to the published total.

Reported results by concentration band, Saginaw County, 2008 to 2017, laboratory: data table
Result bandTests Calculated by Radon411Share Measured
Under 2 pCi/L1,71456.5%
2 to 4 pCi/L80726.6%
4 pCi/L and above51617.0%

Distribution of tested buildings, not this house. People testing before a sale, or because they suspect a problem, are over-represented in any reported testing data.

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

Saginaw County, In figures

Saginaw County in figures

What the published data says about Saginaw County, in words. A zone and a share of tests describe an area, never the level in any one home.

    • Predicted

      Predicted

      EPA places Saginaw County in Zone 3, lower predicted potential, as it does 41 other counties of Michigan's 83.

      Of the 6 bordering counties, EPA places Genesee County and Shiawassee County in Zone 2 and Bay County, Gratiot County, Midland County and Tuscola County in Zone 3.

  • Reported tests

    Measured

    CDC publishes no annual figure for Saginaw County; its figure is a laboratory total for 2008 to 2017: 17.0% of 3,037 reported tests were at or above 4 pCi/L.

  • Local record

    Michigan's radon program is the Michigan Indoor Radon Program, run by Michigan Department of Environment, Great Lakes, and Energy; its contacts are under Local resources.

    The county's largest incorporated places are Saginaw, Frankenmuth and Chesaning; the figures here cover them as part of the county.

Saginaw County, State data

Michigan's own radon test data

Measured

What Michigan's own agencies publish about radon tests in Saginaw 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 Saginaw County

Michigan EGLE publishes its figures by ZIP code, not by county. These are the 26 ZIP codes that lie wholly or partly in Saginaw County, each with the state's own figures for it. Period: About 10 years to 2026-05-15.

ZIP codes in Saginaw County
ZIP codeWhat the state reports
484158% greater than 4 pCi/L, median 1.1 pCi/L, 72 tests
484176% greater than 4 pCi/L, median 1.4 pCi/L, 16 tests
4842038% greater than 4 pCi/L, median 3.3 pCi/L, 16 tests
484570% greater than 4 pCi/L, median 1.0 pCi/L, 20 tests
484606% greater than 4 pCi/L, median 2.2 pCi/L, 17 tests
4860116% greater than 4 pCi/L, median 1.5 pCi/L, 134 tests
486027% greater than 4 pCi/L, median 1.1 pCi/L, 176 tests
4860311% greater than 4 pCi/L, median 1.1 pCi/L, 370 tests
4860414% greater than 4 pCi/L, median 1.9 pCi/L, 59 tests
486073 tests, figures not shown
4860915% greater than 4 pCi/L, median 1.7 pCi/L, 106 tests
486143 tests, figures not shown
4861616% greater than 4 pCi/L, median 1.8 pCi/L, 49 tests
4862322% greater than 4 pCi/L, median 1.7 pCi/L, 103 tests
486264% greater than 4 pCi/L, median 1.2 pCi/L, 47 tests
486370% greater than 4 pCi/L, median 0.7 pCi/L, 15 tests
4863817% greater than 4 pCi/L, median 1.9 pCi/L, 137 tests
4864927% greater than 4 pCi/L, median 3.1 pCi/L, 11 tests
486550% greater than 4 pCi/L, median 0.9 pCi/L, 37 tests
4870813% greater than 4 pCi/L, median 1.9 pCi/L, 47 tests
4872222% greater than 4 pCi/L, median 1.1 pCi/L, 18 tests
4873428% greater than 4 pCi/L, median 2.8 pCi/L, 309 tests
487474 tests, figures not shown
4875736% greater than 4 pCi/L, median 2.8 pCi/L, 25 tests
4883149% greater than 4 pCi/L, median 3.6 pCi/L, 35 tests
4884130% greater than 4 pCi/L, median 2.0 pCi/L, 10 tests
  • 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.

Saginaw County, Comparison

How Saginaw County compares

Measured

Saginaw County's own published CDC figures beside those of the counties that border it, for the same period.

Share of reported tests at or above 4 pCi/L

Measured

2008 to 2017, laboratory, highest first. Each county’s own published CDC figure.

  1. Tuscola CountyMI369 tests35.5%
  2. Shiawassee CountyMI1,515 tests31.6%
  3. Genesee CountyMI1,699 tests21.9%
  4. Saginaw CountyThis page3,037 tests17.0%
  5. Gratiot CountyMI457 tests16.8%
  6. Bay CountyMI624 tests8.5%
  7. Midland CountyMI2,006 tests5.3%

Median reported result

Measured

2008 to 2017, laboratory, highest first. Each county’s own published CDC figure.

  1. Tuscola CountyMI369 tests2.6 pCi/L
  2. Shiawassee CountyMI1,515 tests2.5 pCi/L
  3. Genesee CountyMI1,699 tests2.0 pCi/L
  4. Gratiot CountyMI457 tests1.7 pCi/L
  5. Saginaw CountyThis page3,037 tests1.7 pCi/L
  6. Bay CountyMI624 tests1.4 pCi/L
  7. Midland CountyMI2,006 tests1.0 pCi/L

Each figure is that county’s own published CDC figure for 2008 to 2017, laboratory, counting radon tests reported to CDC, not homes. Saginaw County is this page. Nothing is averaged or combined across counties. The test count beside each county is CDC’s published number of pre-mitigation tests behind its figures. Figures from few tests can swing widely from year to year. Every Michigan county’s own figure is in the Michigan county table.

CDC publishes this figure only for counties here, so there is no state or national number to compare Saginaw County, Michigan with.

Saginaw County, Bordering counties

Counties bordering Saginaw County

Calculated by Radon411

6 counties share a boundary with Saginaw County, computed from Census county geometry. Radon potential follows geology rather than county lines, so a bordering county’s report can be worth reading alongside this one.

Saginaw County, Local resources

Local resources in Michigan

Who to ask in Michigan: the state's radon program, test kits and professionals.

Michigan Indoor Radon Program

Michigan Department of Environment, Great Lakes, and Energy

Michigan’s radon program answers questions about testing, mitigation and the rules where you live.

Phone
800-723-6642
Email
Radon@Michigan.gov
Licensing of radon professionals
Michigan does not license or regulate radon testing and mitigation contractors.
Visit the program's page(opens in a new tab)

Test kits

Ask the program whether it has free or discounted kits, or compare kits you can buy.

Radon professionals

6 professionals are listed in Michigan.

Professionals in Michigan

Saginaw County, Cities and towns

Cities and towns in Saginaw County

The radon figures on this page are for Saginaw County as a whole. They do not differ by city or town.

  • Saginaw
  • Frankenmuth
  • Chesaning
  • St. Charles
  • Birch Run
  • Zilwaukee
  • Reese (part)
  • Merrill
  • Oakley

9 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files. “(part)” marks a place that extends into another county.

Saginaw County, Questions

Questions about radon in Saginaw County

Common questions8 questions, answered from the figures above

How do I get a radon test in Saginaw County?

EPA says you can test your home yourself or hire a qualified radon test company, and that either approach takes only a small amount of time and effort. No certified tester listed on Radon411 names Saginaw County as a service area yet. The Michigan radon program is the place to ask about certified testers and any test kit offer it runs.

How to test a homeTest kits comparedFree and low-cost kits by stateMichigan radon program

Are radon levels high in Saginaw County?

In 2017, 17.0% of the radon tests reported to CDC for Saginaw County, Michigan were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.7 pCi/L. That is a share of reported tests, not of homes. EPA places Saginaw County in Zone 3, lower predicted potential, a predicted average indoor screening level less than 2 pCi/L. Homes with elevated levels occur in all three zones, so the figures describe the area, not your house. Testing is the only way to know the radon level in a specific building.

What a radon level meansRadon in Michigan

Who does radon mitigation in Saginaw County?

No listed mitigator names Saginaw County as a service area yet; the Michigan directory lists 6 companies. EPA recommends having a qualified contractor fix a home with a radon problem, because lowering high radon levels takes technical knowledge and special skills, and some states require the work to be done by a licensed or certified professional. Your state radon program is the place to check whether Michigan requires one.

How radon mitigation worksWhat mitigation costsMitigators in Michigan

What EPA radon zone is Saginaw County in?

EPA places Saginaw County, Michigan in Zone 3, which EPA describes as lower predicted potential for the area. A zone is a prediction for the whole county and never determines whether a particular home should be tested. EPA recommends testing every home regardless of zone.

Should I test my home in Saginaw County?

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.

When is the best time of year to test?

EPA says short-term tests stay in the home from 2 to 90 days and that all radon tests should run a minimum of 48 hours; long-term tests stay more than 90 days. EPA's guides do not name a best season: they say radon levels tend to vary from day to day and season to season, so a long-term test is more likely than a short-term test to tell you the year-round average.

What does it cost to test?

EPA's Citizen's Guide calls testing easy and inexpensive, and EPA's Home Buyer's and Seller's Guide says passive short-term and long-term devices are generally inexpensive, while active devices may cost more. No national average price is published for this, so Radon411 does not give one. What testing costs.

Which counties border Saginaw County?

Saginaw County borders 6 counties, derived from Census county geometry. Radon potential follows geology rather than county lines, so a bordering county's report can be relevant.

What these figures mean if you own, buy, sell or rent

The reported-test figures on this page describe Saginaw County, Michigan in 2017. They describe tests other people carried out in other buildings, and none of them measures yours.

  • If you own your home

    Test the lowest lived-in level; a short-term kit screens in days, a long-term kit reflects the year.

    How to test a home
  • If you are buying

    Ask for past results and any system's post-mitigation test, and test during the sale.

    Buying a house: radon guide
  • If you are selling

    Testing before you list puts the timing in your hands; disclosure rules differ by state.

    Selling a house: radon guide
  • If you rent, or rent out a home

    A tenant can test; a fix is the owner's to make, and duties differ by state.

    Radon in rental homes

How long a test has to run, under what conditions, and what EPA says a result means: the testing standard, in full.

Saginaw County, Products

Testing and mitigation products

Whatever the figures for Saginaw County show, only a test tells you about one home.

Saginaw County / Next steps

What to do next

Informational. Follow EPA guidance. EPA says all radon tests should be taken for a minimum of 48 hours, with windows and doors closed from 12 hours before a short-term test.