Iowa Radon Mitigation Cost by County, Foundation, and Rules
Compare typical local price ranges for basement, slab, and crawl space systems. Use the state-level ranges first, then open your county when you need a local estimate after a confirmed radon result.
Fastest Start
Use ZIP Instead of Scrolling
If you know the property ZIP, jump straight to the right county estimate instead of browsing the full state list.
Cost Basics
Foundation & Result Ranges
Use the national cost guide if you need basement, slab, crawl-space, or 4.0+ result context first.
Validate the Risk
Check IA Radon Levels
If you do not have a confirmed radon result yet, review EPA zone context before you compare mitigation pricing.
Browse Counties
Jump to County Pricing
Open your county if you already know the area and just need a local basement, slab, or crawl-space price range.
Official State Resource
Iowa radon program and rules
Use the state program link to verify local radon guidance, disclosure language, and contractor credential expectations before you act on an estimate.
Disclosure rule tracked
Iowa requires radon testing results to be disclosed during residential property sales. Iowa has some of the highest average radon levels in the US.
State licensing required
Iowa requires certification for radon measurement and mitigation professionals.
IA Cost Starting Point
Iowa cost range by foundation
Basement
$950-$1715
Use this when the home has a basement or lowest-level slab that supports a standard sub-slab suction system.
Slab-on-Grade
$905-$1625
Slab homes can price differently when finished space, routing, or core drilling complicates the system path.
Crawl Space
$1440-$2650
Crawl-space jobs can move higher when vapor-barrier sealing, access, and sub-membrane suction add labor.
State rules that can change the quote
Disclosure: Required or commonly expected in this state context. Iowa requires radon testing results to be disclosed during residential property sales. Iowa has some of the highest average radon levels in the US.
Mitigation licensing: State licensing can add contractor and permit friction. Iowa requires certification for radon measurement and mitigation professionals.
EPA zone mix in Iowa
99
Zone 1
0
Zone 2
0
Zone 3
99 classified counties are used for state-level risk context. EPA zones do not replace a home test, but they help explain why county pages and confirmed 4.0+ results matter before comparing quotes.
Local cost guides
Iowa evidence-backed cost route
The cost directory follows the same eligibility rule as the county cost pages themselves. State hubs, sitemap candidates, and internal links point at pages Google can actually index.
99
Listed
99
Evidence
99
Measured
Best county pages to open first
Polk County
Evidence-backed local evidence
$950-$1715
Iowa HHS Radon Dashboard County Metrics: 3.4 pCi/L median
Polk County is a strong cost page because it pairs Iowa HHS Radon Dashboard County Metrics: 3.4 pCi/L median with a local housing base of 211,392 units and a modeled planning range of $950-$1715.
Dubuque County
Demand cohort local evidence
$950-$1715
Iowa HHS Radon Dashboard County Metrics: 2.2 pCi/L median
Dubuque County is a strong cost page because it pairs Iowa HHS Radon Dashboard County Metrics: 2.2 pCi/L median with a local housing base of 42,707 units and a modeled planning range of $950-$1715.
Story County
Demand cohort local evidence
$950-$1715
Iowa HHS Radon Dashboard County Metrics: 3.2 pCi/L median
Story County is a strong cost page because it pairs Iowa HHS Radon Dashboard County Metrics: 3.2 pCi/L median with a local housing base of 41,347 units and a modeled planning range of $950-$1715.
Marion County
Demand cohort local evidence
$950-$1715
Iowa HHS Radon Dashboard County Metrics: 2.4 pCi/L median
Marion County is a strong cost page because it pairs Iowa HHS Radon Dashboard County Metrics: 2.4 pCi/L median with a local housing base of 14,179 units and a modeled planning range of $950-$1715.
Carroll County
Cost eligible local evidence
$950-$1715
Iowa HHS Radon Dashboard County Metrics: 4.2 pCi/L median
Carroll County is a strong cost page because it pairs Iowa HHS Radon Dashboard County Metrics: 4.2 pCi/L median with a local housing base of 9,515 units and a modeled planning range of $950-$1715.
Palo Alto County
Demand cohort local evidence
$950-$1715
Iowa HHS Radon Dashboard County Metrics: 3.8 pCi/L median
Palo Alto County is a strong cost page because it pairs Iowa HHS Radon Dashboard County Metrics: 3.8 pCi/L median with a local housing base of 4,509 units and a modeled planning range of $950-$1715.
Ringgold County
Demand cohort local evidence
$950-$1715
Iowa HHS Radon Dashboard County Metrics: 3.1 pCi/L median
Ringgold County is a strong cost page because it pairs Iowa HHS Radon Dashboard County Metrics: 3.1 pCi/L median with a local housing base of 2,673 units and a modeled planning range of $950-$1715.
Scott County
Evidence-backed local evidence
$950-$1715
Iowa HHS Radon Dashboard County Metrics: 2.8 pCi/L median
Scott County is a strong cost page because it pairs Iowa HHS Radon Dashboard County Metrics: 2.8 pCi/L median with a local housing base of 77,613 units and a modeled planning range of $950-$1715.
Black Hawk County
Evidence-backed local evidence
$950-$1715
Iowa HHS Radon Dashboard County Metrics: 2.4 pCi/L median
Black Hawk County is a strong cost page because it pairs Iowa HHS Radon Dashboard County Metrics: 2.4 pCi/L median with a local housing base of 58,599 units and a modeled planning range of $950-$1715.
Linn County
Cost eligible local evidence
$950-$1715
Iowa HHS Radon Dashboard County Metrics: 1.8 pCi/L median
Linn County is a strong cost page because it pairs Iowa HHS Radon Dashboard County Metrics: 1.8 pCi/L median with a local housing base of 101,214 units and a modeled planning range of $950-$1715.
Woodbury County
Cost eligible local evidence
$950-$1715
Iowa HHS Radon Dashboard County Metrics: 3.4 pCi/L median
Woodbury County is a strong cost page because it pairs Iowa HHS Radon Dashboard County Metrics: 3.4 pCi/L median with a local housing base of 42,864 units and a modeled planning range of $950-$1715.
Dallas County
Cost eligible local evidence
$950-$1715
Iowa HHS Radon Dashboard County Metrics: 3 pCi/L median
Dallas County is a strong cost page because it pairs Iowa HHS Radon Dashboard County Metrics: 3 pCi/L median with a local housing base of 41,753 units and a modeled planning range of $950-$1715.
Pottawattamie County
Cost eligible local evidence
$950-$1715
Iowa HHS Radon Dashboard County Metrics: 3.1 pCi/L median
Pottawattamie County is a strong cost page because it pairs Iowa HHS Radon Dashboard County Metrics: 3.1 pCi/L median with a local housing base of 39,914 units and a modeled planning range of $950-$1715.
Webster County
Cost eligible local evidence
$950-$1715
Iowa HHS Radon Dashboard County Metrics: 5.4 pCi/L median
Webster County is a strong cost page because it pairs Iowa HHS Radon Dashboard County Metrics: 5.4 pCi/L median with a local housing base of 16,981 units and a modeled planning range of $950-$1715.
Marshall County
Cost eligible local evidence
$950-$1715
Iowa HHS Radon Dashboard County Metrics: 5 pCi/L median
Marshall County is a strong cost page because it pairs Iowa HHS Radon Dashboard County Metrics: 5 pCi/L median with a local housing base of 16,795 units and a modeled planning range of $950-$1715.
Sioux County
Cost eligible local evidence
$950-$1715
Iowa HHS Radon Dashboard County Metrics: 6.8 pCi/L median
Sioux County is a strong cost page because it pairs Iowa HHS Radon Dashboard County Metrics: 6.8 pCi/L median with a local housing base of 13,046 units and a modeled planning range of $950-$1715.
Boone County
Cost eligible local evidence
$950-$1715
Iowa HHS Radon Dashboard County Metrics: 4.5 pCi/L median
Boone County is a strong cost page because it pairs Iowa HHS Radon Dashboard County Metrics: 4.5 pCi/L median with a local housing base of 11,950 units and a modeled planning range of $950-$1715.
Plymouth County
Cost eligible local evidence
$950-$1715
Iowa HHS Radon Dashboard County Metrics: 5.4 pCi/L median
Plymouth County is a strong cost page because it pairs Iowa HHS Radon Dashboard County Metrics: 5.4 pCi/L median with a local housing base of 10,819 units and a modeled planning range of $950-$1715.
Johnson County
Cost eligible local evidence
$950-$1715
Iowa HHS Radon Dashboard County Metrics: 1.7 pCi/L median
Johnson County is a strong cost page because it pairs Iowa HHS Radon Dashboard County Metrics: 1.7 pCi/L median with a local housing base of 66,163 units and a modeled planning range of $950-$1715.
Cerro Gordo County
Cost eligible local evidence
$950-$1715
Iowa HHS Radon Dashboard County Metrics: 3.9 pCi/L median
Cerro Gordo County is a strong cost page because it pairs Iowa HHS Radon Dashboard County Metrics: 3.9 pCi/L median with a local housing base of 22,651 units and a modeled planning range of $950-$1715.
County estimates
Open a Iowa county page for local pricing
County pages narrow the state range with local EPA zone context, housing data, state rules, and the foundation scenario you choose.
Why Does Cost Vary in Iowa?
Price ranges across Iowa move with local labor rates, permit friction, roofline routing, and foundation type. County pages narrow this down for homeowners comparing basement, slab, or crawl space mitigation after a confirmed radon reading.