Locations and reports
Radon in Bloomington, Indiana
EPA puts Monroe County, where Bloomington is, in Zone 1, its highest radon zone, and 34.2% of its 2,375 reported radon tests (2008 to 2017, laboratory totals) 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
34.2%
4.7 pts below IN
- Monroe
- 34.2%
- Indiana
- 38.9%
Monroe, 56th of 69 in IN, 2008 to 2017
Median result
2.8pCi/L
Below action level
- Monroe
- 2.8 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of Monroe's tests, 2008 to 2017
Nearest county
25.9%
Brown, 16 miles
- Brown
- 25.9%
- Monroe
- 34.2%
112 tests, 2008 to 2017
EPA radon zone
Zone 1
Highest potential
- Zone 1
- 2
- 3
1 highest, 3 lowest
Monroe, where Bloomington is
Tests reported
2,375
In Monroe
- Monroe
- 2,375
- Brown
- 112
Reported to CDC before any fix, 2008 to 2017
Read a result for Bloomington
Starts at Monroe County's median, 2.8 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 2.8 pCi/L
Between 2 and 4 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 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. Monroe County's median reported result, 2008 to 2017.
The data
Bloomington, What is published
What is published for Bloomington
Every figure for Bloomington is a county's
Radon data is published by county, not by city, so for Bloomington it is Monroe County's: its EPA zone (Zone 1) and the 2,375 tests reported to CDC for 2008 to 2017, laboratory. Only a test tells you about one home.
About 83,307 people live in Bloomington.
Bloomington, Counties
The county Bloomington lies in
MeasuredMonroe County's EPA zone and the figures CDC publishes for it, 2008 to 2017, laboratory.
Monroe CountyZone 1Highest predicted potential
- 34.2%
- Reported tests at or above 4 pCi/L
- 2.8 pCi/L
- Median reported result
- 2,375 tests
- Tests reported to CDC
- None
- Yearly figures on file
Monroe County ranks 56th of 69 Indiana counties with 30 or more tests for that period, 4.7 points below the 38.9% pooled across Indiana's counties, 1.5 points below the national pool of 35.7%.
Around Monroe County, the county Bloomington lies in, the nearest counties with a CDC figure for 2008 to 2017, laboratory are Brown County (16 miles, 25.9% of 112 tests), Owen County (20 miles, 39.1% of 110 tests) and Lawrence County (22 miles, 35.6% of 267 tests). Across the 8 nearest, the share at or above 4 pCi/L runs from 25.9% to 48.7%; the farthest of them, Bartholomew County, is 34 miles away at 48.7%.
No business in the directory gives Bloomington as its address; the Indiana list covers it. Indiana's other cities with a page of their own: Indianapolis, Fort Wayne and Valparaiso.
The counties around Bloomington
By distance from Monroe County; counties with 30 or more tests.
Predicted: EPA Map of Radon Zones, by county. Measured: CDC tracking data, by county, 2008 to 2017, laboratory.
Bloomington, Homes
Homes in Bloomington
Bloomington has 37,537 homes, and many share a building: 43% are in buildings of five or more, 36% are detached houses, against 54% across Monroe County. Half of its homes were built before 1984, close to Monroe County's 1986: 20% date from before 1960 and 24% from 2000 or later. Most occupied homes here are rented: owners live in 35% (Monroe County: 55%). A tenant can run a test; a fix is the landlord's to make.
| Homes | Bloomington | Monroe County | Indiana |
|---|---|---|---|
| Housing units | 37,537 | 64,850 | 2,953,344 |
| Detached houses | 36% | 54% | 73% |
| In buildings of 5 or more | 43% | 28% | 13% |
| Mobile homes | 3% | 5% | 4% |
| Built before 1960 | 20% | 18% | 32% |
| Built since 2000 | 24% | 26% | 21% |
| Middle year built | 1984 | 1986 | 1976 |
| Owner-occupied | 35% | 55% | 70% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.
Local help
Bloomington, Local resources
Local resources for Bloomington
Who to ask in Indiana: its radon program, test kits and professionals.
- Indiana's radon programIndiana Department of Health, phone 1-800-272-9723.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
To purchase a low-cost radon short term or long term test kit, please visit the American Lung Association
- Compare kits
- Professionals in IndianaRadon testers and mitigators in Indiana, each with how its listing was checked.
The program's own words on licensing are on the Indiana page.
What it means
Bloomington, Questions
Questions about radon in Bloomington
What radon zone is Bloomington in?
Bloomington has no zone of its own: it shares Monroe County's, Zone 1, the map's highest class: a predicted county average above 4 pCi/L.
What are radon levels in Bloomington?
Around Bloomington, 34.2% of 2,375 tests reported from Monroe County for 2008 to 2017 (laboratory totals) reached 4 pCi/L or more, so a high result is no surprise here. The median reported result was 2.8 pCi/L.
Should I test my home in Bloomington?
Yes. Monroe County reported about 812 of its 2,375 tests at or above 4 pCi/L. That is below Indiana's pooled 38.9%, and still not a reason to skip it, and ranks Monroe County 56th of the 69 Indiana counties with 30 or more tests. Which homes they were, no map can say. How to test a home.
Is radon higher in the counties around Bloomington?
It depends which way you go. 5 of the 8 nearest counties with a figure report a larger share than Monroe County's 34.2% and 3 a smaller one: from Brown County (25.9%, 16 miles off) to Bartholomew County (48.7%, 34 miles off).
The answers use the published figures of Monroe County, the county Bloomington lies in.
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