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Radon Levels in Lackawanna County, Pennsylvania

EPA puts Lackawanna County in Zone 1, its highest radon zone, and 27.1% of its 776 reported radon tests (2020) were at or above 4 pCi/L. Homes with elevated levels occur in all three zones, so only a test measures yours.

Data checked By Radon411Methodology

  • Share at 4+ pCi/L

    27.1%

    3.2 pts below PA

    Lackawanna
    27.1%
    PA
    30.3%

    776 tests, 2020

  • Median result

    2.1pCi/L

    Below action level

    Lackawanna
    2.1 pCi/L
    EPA
    4.0 pCi/L

    Midpoint of the tests, 2020

  • Tests reported

    776

    26th of 63 by tests

    Lackawanna
    776
    Montgomery
    10,508

    Reported to CDC before any fix, 2020

  • EPA radon zone

    Zone 1

    Highest potential

    1. Zone 1
    2. 2
    3. 3

    1 highest, 3 lowest

    EPA predicts over 4 pCi/L indoors

  • Rank in PA

    54 of 63

    Lowest quarter

    Lackawanna
    27.1%
    Perry
    57.7%

    By share, of 63 with 30+ tests

Read a result for Lackawanna County

Starts at Lackawanna County's median, 2.1 pCi/L

2.1pCi/L

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

EPA’s reading of 2.1 pCi/L

Between 2 and 4 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 between 2 and 4 pCi/L. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. Lackawanna County's median reported result, 2020.

The data

Lackawanna County, At a glance

Lackawanna County at a glance

Predicted: EPA radon zone

EPA Zone 1: highest predicted potential

EPA puts all of Lackawanna County in and predicts an average indoor of greater than 4 pCi/L (greater than 150 Bq/m³) across the county. That is one forecast for the whole county, not a reading of any address in it; homes above EPA's turn up in all three zones.

USGS geologic potential: High across 72% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Lackawanna County, 2020

Share of reported tests at or above 4 pCi/L, by year, Lackawanna County
Share of reported tests at or above 4 pCi/L, by year, Lackawanna County
YearShare of reported tests at or above 4 pCi/L
201428.8%
201528.3%
201630.6%
201727.8%
201825.0%
201927.5%
202027.1%

2020: 27.1%. Across these years the share ran from 25.0% to 30.6%. Each column counts radon tests reported to CDC that year, not homes.

What these figures count

These are the 776 tests reported to CDC for Lackawanna County over 2020, 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: 2020. Measured data period: 2005 to 2020 (every CDC figure on file).

How to read these figures

Lackawanna County, Compared

Lackawanna County radon figures, compared

Calculated by Radon411

Lackawanna County's 776 reported tests in 2020 had a middle value of 2.1 pCi/L and a maximum of 73.5 pCi/L, and 27.1% reached 4 pCi/L. Pennsylvania as a whole (67 Pennsylvania counties, pooled) comes to 30.3%: 3.2 points higher than here.

Among its state's counties it ranks 54th of 63 Pennsylvania counties with 30 or more tests for the same period. Statewide for the same period, Perry County reported the highest share (57.7%) and Philadelphia County the lowest (10.6%).

Below the action level, 373 tests (48.1%) came in under 2 pCi/L, against 44.3% statewide, and 193 tests (24.9%) fell between 2 and 4, against 25.4% statewide. The busiest year on file was 2020, with 776 tests reported; the quietest, 2017, had 539.

EPA's 1993 zone map puts Lackawanna County in Zone 1, a predicted county average above 4 pCi/L. USGS geology rates 72% of the county's land high radon potential.

Next door, the shares run from 28.2% in Luzerne County to 37.9% in Susquehanna County. Over 7 years of annual figures the share held within 2 points, from 28.8% in 2014 to 27.1% in 2020; its peak was 30.6% in 2016.

Share of reported tests at or above 4 pCi/L by year, Lackawanna County against Pennsylvania2014 to 2020, years with 30 or more tests: Lackawanna County 28.8% to 27.1%, the state's pooled share 30.3% in 2020.
Lackawanna CountyPennsylvania, pooled
Share of reported tests at or above 4 pCi/L by year, Lackawanna County against Pennsylvania: data table
YearTestsLackawanna County, at or above 4 pCi/LPennsylvania, pooled
201465028.8%36.1%
201567228.3%37.8%
201665430.6%34.4%
201753927.8%35.1%
201866725.0%30.5%
201973527.5%31.4%
202077627.1%30.3%
Lackawanna County against Pennsylvania, the United States and nearby counties, 2020
AreaTestsAt or above 4 pCi/LMedianDifference from Lackawanna County
Lackawanna County77627.1%2.1 pCi/LThis county
Pennsylvania, pooled67 counties, pooled93,66930.3%Not pooled+3.2 points
United States, pooled915 counties, pooled405,35525.5%Not pooled−1.6 points
Perry Countyhighest in the state18957.7%4.9 pCi/L+30.6 points
Philadelphia Countylowest in the state8,44210.6%1.7 pCi/L−16.5 points
Susquehanna County, PAborders it11637.9%3.0 pCi/L+10.8 points
Wyoming County, PAborders it12330.9%2.0 pCi/L+3.8 points
Monroe County, PAborders it1,64930.7%2.1 pCi/L+3.6 points
Wayne County, PAborders it60730.1%2.3 pCi/L+3.0 points
Luzerne County, PAborders it99128.2%2.0 pCi/L+1.1 points
Where Lackawanna County's reported results fell, 2020, beside Pennsylvania and the United States
ResultLackawanna County testsLackawanna County sharePennsylvania shareU.S. shareAgainst Pennsylvania
Under 2 pCi/L37348.1%44.3%51.6%+3.8 points
2 to 4 pCi/L19324.9%25.4%22.9%−0.5 points
4 pCi/L and above21027.1%30.3%25.5%−3.2 points
Lackawanna County ranked among the 63 Pennsylvania counties with 30 or more tests, by share at or above 4 pCi/L, 2020
CountyRankTestsAt or above 4 pCi/LMedian
Allegheny County49 of 638,33730.5%2.5 pCi/L
Wayne County50 of 6360730.1%2.3 pCi/L
Crawford County51 of 6322129.9%2.6 pCi/L
Sullivan County52 of 633129.0%2.0 pCi/L
Luzerne County53 of 6399128.2%2.0 pCi/L
Lackawanna County54 of 6377627.1%2.1 pCi/L
Chester County55 of 636,77024.0%2.0 pCi/L
Bucks County56 of 637,06623.2%2.0 pCi/L
Erie County57 of 631,16222.2%1.9 pCi/L
Montgomery County58 of 6310,50821.8%2.0 pCi/L
Greene County59 of 634520.0%3.2 pCi/L
Lackawanna County radon tests by year, against Pennsylvania's pooled share
YearTestsAt or above 4 pCi/LMedianHighestPennsylvania, pooledChange from the row before
202077627.1%2.1 pCi/L73.5 pCi/L30.3%−0.4 points
201973527.5%2.2 pCi/L90.4 pCi/L31.4%+2.5 points
201866725.0%2.0 pCi/L88.5 pCi/L30.5%−2.8 points
201753927.8%2.2 pCi/L54.1 pCi/L35.1%−2.8 points
201665430.6%2.3 pCi/L509.0 pCi/L34.4%+2.3 points
201567228.3%2.4 pCi/L51.4 pCi/L37.8%−0.5 points
201465028.8%1.8 pCi/L76.7 pCi/L36.1%First on file

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

Lackawanna County, State data

Pennsylvania's own radon test data

Measured

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

MeasuredState figures, not CDC's

What Pennsylvania DEP reports for the ZIP codes in Lackawanna County

Pennsylvania DEP publishes its figures by ZIP code, not by county. These are the 29 ZIP codes that lie wholly or partly in Lackawanna County, each with the state's own figures for it. Period: Period not stated by DEP.

ZIP codes in Lackawanna County
ZIP codeWhat the state reports
18403Basement: average 3.0 pCi/L, 1,170 tests; First floor: average 1.6 pCi/L, 145 tests
18407Basement: average 3.7 pCi/L, 1,031 tests; First floor: average 2.3 pCi/L, 209 tests
18411Basement: average 4.7 pCi/L, 7,316 tests; First floor: average 2.7 pCi/L, 570 tests
18414Basement: average 4.7 pCi/L, 855 tests; First floor: average 2.7 pCi/L, 73 tests
18419Basement: average 4.6 pCi/L, 569 tests; First floor: average 1.4 pCi/L, 64 tests
18420Basement: average 4.5 pCi/L, 38 tests; First floor: figures not shown
18421Basement: average 3.9 pCi/L, 438 tests; First floor: average 1.8 pCi/L, 131 tests
18424Basement: average 4.7 pCi/L, 884 tests; First floor: average 2.1 pCi/L, 317 tests
18433Basement: average 5.9 pCi/L, 881 tests; First floor: average 3.2 pCi/L, 82 tests
18434Basement: average 3.4 pCi/L, 599 tests; First floor: average 1.1 pCi/L, 82 tests
18436Basement: average 3.6 pCi/L, 5,453 tests; First floor: average 1.8 pCi/L, 891 tests
18440Basement: figures not shown; First floor: figures not shown
18444Basement: average 5.0 pCi/L, 1,650 tests; First floor: average 3.3 pCi/L, 96 tests
18446Basement: average 6.6 pCi/L, 247 tests; First floor: average 3.2 pCi/L, 32 tests
18447Basement: average 4.5 pCi/L, 1,137 tests; First floor: average 2.0 pCi/L, 185 tests
18452Basement: average 3.8 pCi/L, 912 tests; First floor: average 2.3 pCi/L, 98 tests
18471Basement: average 4.6 pCi/L, 421 tests; First floor: average 2.2 pCi/L, 61 tests
18503Basement: average 1.7 pCi/L, 100 tests; First floor: figures not shown
18504Basement: average 3.1 pCi/L, 1,982 tests; First floor: average 1.8 pCi/L, 305 tests
18505Basement: average 3.3 pCi/L, 2,910 tests; First floor: average 1.3 pCi/L, 358 tests
18507Basement: average 3.6 pCi/L, 990 tests; First floor: average 2.7 pCi/L, 80 tests
18508Basement: average 3.8 pCi/L, 807 tests; First floor: average 1.4 pCi/L, 208 tests
18509Basement: average 2.4 pCi/L, 1,155 tests; First floor: average 1.0 pCi/L, 145 tests
18510Basement: average 2.4 pCi/L, 1,029 tests; First floor: average 1.1 pCi/L, 157 tests
18512Basement: average 3.5 pCi/L, 2,007 tests; First floor: average 1.4 pCi/L, 268 tests
18517Basement: average 3.3 pCi/L, 514 tests; First floor: average 1.6 pCi/L, 53 tests
18518Basement: average 4.3 pCi/L, 1,283 tests; First floor: average 2.3 pCi/L, 127 tests
18519Basement: average 3.6 pCi/L, 772 tests; First floor: average 1.8 pCi/L, 114 tests
18641Basement: average 6.1 pCi/L, 851 tests; First floor: average 2.0 pCi/L, 85 tests
  • DEP's report gives the number of tests, the highest result and the average result for each floor tested; it states no period.
  • DEP says the smartest thing to do is to test your home for radon, no matter where you live.
  • A ZIP code that crosses the county line is listed whole; its figures cover all of it.

Measured: Pennsylvania DEP data, Period not stated by DEP.

Lackawanna County, Geology

The ground under Lackawanna County

Predicted

USGS's geologic map splits Lackawanna County: 71.6% of its land is high radon potential and 28.4% moderate. The map puts 45.2% of Lackawanna County in the area it calls Appalachian Mountain Section and 28.4% in Glaciated Low Plateau East and Pocono Plateau, with one smaller area beside them. USGS gives the first a radon index of 12, in the high band (12 to 17), and the second 10, in the moderate band (9 to 11).

USGS's geologic areas under Lackawanna County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Appalachian Mountain SectionPaleozoic sandstone, shale, and limestone.High1245.2%
Glaciated Low Plateau East and Pocono PlateauModerately thick glacial till overlying sandstone, siltstone, mudstone, and shale.Moderate1028.4%
Glaciated Low Plateau Western PortionModerately thick glacial till overlying sandstone, siltstone, mudstone, and shale.High1326.3%

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

Lackawanna County beside the ground around it

On high-potential ground Lackawanna County is close to Pennsylvania as a whole: 71.6% of its land against 70.4%. Of the 5 counties that border it, 3 have more high-potential ground, Wyoming County the most at 100%.

Share of land by USGS radon potential: Lackawanna County, the 5 counties bordering it and Pennsylvania
AreaEPA zoneLow potentialModerate potentialHigh potential
Lackawanna CountyZone 1None28.4%71.6%
Wyoming CountyZone 1NoneNone100%
Luzerne CountyZone 1None3.7%96.3%
Wayne CountyZone 2None96.4%3.6%
Monroe CountyZone 1None67.7%32.3%
Susquehanna CountyZone 1NoneNone100%
Pennsylvania67 counties, pooled by land areaVaries0.7%28.9%70.4%

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

What it means

Lackawanna County, Questions

Questions about radon in Lackawanna County

Are radon levels high in Lackawanna County?

In 2020, 27.1% of the radon tests reported to CDC for Lackawanna County, Pennsylvania were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.1 pCi/L. Of 63 Pennsylvania counties with 30 or more tests for the same period, 53 reported a higher share; pooled, the state comes to 30.3%.

Which counties border Lackawanna County?

Lackawanna County borders 5 counties: Wyoming County, Luzerne County, Wayne County, Monroe County and Susquehanna County.

Products

Lackawanna County, Products

Testing a home in Lackawanna County

In Lackawanna County, 27.1% of 776 tests reported to CDC in 2020 reached 4 pCi/L, against 30.3% pooled across Pennsylvania. In Zone 1 the year-round level in Lackawanna County is the one to know: a long-term test (more than 90 days) or a monitor, with a short-term kit for a first answer.

Test kits and monitors3

See every kit and monitor

Lackawanna County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Lackawanna County

Explore

Lackawanna County, Bordering counties

Counties bordering Lackawanna County

Calculated by Radon411

Lackawanna County, Cities and towns

Cities and towns in Lackawanna County

Lackawanna County's population has barely moved since 2020: 216,502 residents on July 1, 2025 against 215,529 then, by the Census Bureau's estimates. That works out to 472 people per square mile of land. Its largest town, Scranton, has 75,514 residents, 34.9% of the total. Together its 19 incorporated places hold 77.6% of those residents; the other 22.4% live outside any of them. Reported testing is thin here: 776 tests over 2020, or 3.6 for every 1,000 residents (2025 estimate), where Pennsylvania as a whole comes to 7.2.

From Scranton to Vandling, CDC publishes no figure by town: each reads Lackawanna County's.

The 12 largest cities and towns in Lackawanna County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Scranton75,514−0.9%34.9%
Dunmore14,249+1.6%6.6%
Carbondale8,731−0.5%4.0%
Old Forge8,640+1.6%4.0%
Archbald7,598+3.1%3.5%
Blakely6,611−0.2%3.1%
Taylor6,232−0.6%2.9%
Moosic5,989+1.0%2.8%
Dickson City5,976−0.6%2.8%
Olyphant5,390+0.4%2.5%
Clarks Summit5,069+0.2%2.3%
Jessup4,506−0.3%2.1%
  • Throop
  • Jermyn
  • Moscow
  • Mayfield
  • Clarks Green
  • Dalton
  • Vandling

19 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).

Lackawanna County, Homes

Homes in Lackawanna County

Of Lackawanna County's 100,013 homes, 65% are detached houses, against 57% across Pennsylvania; 8% are in buildings of five or more homes. The homes are older than Pennsylvania's as a whole: half were built before 1955 (1965 for Pennsylvania), and 54% date from before 1960. 65% of occupied homes are lived in by their owner (Pennsylvania: 69%); in the rest a tenant can run a test, but a fix is the landlord's to make.

Homes in Lackawanna County, Pennsylvania, 2019 to 2023
HomesLackawanna CountyPennsylvania
Housing units100,0135,779,663
Detached houses65%57%
In buildings of 5 or more8%13%
Mobile homes2%4%
Built before 196054%45%
Built since 200010%14%
Middle year built19551965
Owner-occupied65%69%

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