Short-term kit
RA400 short-term liquid scintillation radon test kit, lab fee included
- Lab fee included
Method: Liquid scintillation
In home: 48 to 96 hours
Locations and reports
Radon Levels in Morris County, Texas
EPA puts Morris County in Zone 3, its lowest radon zone, and only 1 radon test from it is on file with CDC (2008 to 2017, laboratory totals). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Nearest county
9.1%
Smith County, 60 miles
- Smith
- 9.1%
- Texas
- 10.4%
Share at 4+ pCi/L, 33 tests, 2007 to 2016
Ground above low
None
27.3 pts below Texas
- Morris
- 0.0%
- Texas
- 27.3%
Share of land USGS rates moderate or high potential
Tests reported
3
Too few for a share
- Morris
- 3
- Needed
- 30
2007 to 2016, laboratory
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Morris County
Starts at EPA's action level
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 4.0 pCi/L
At or above 4 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is at or above 4 pCi/L. EPA recommends fixing a home when the radon level is 4 pCi/L or higher.
The data
Morris County, At a glance
Morris County at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Morris County, 2008 to 2017, laboratory
CDC holds 1 reported test for Morris County over the 2008 to 2017 laboratory totals, a result of 0.9 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Morris County beside the counties around it is how this page reads it.
What these figures count
Only 1 test was reported to CDC for Morris County over 2008 to 2017 (laboratory totals), and tests are often run on homes being sold or already suspected of a problem: so few describe neither the county nor this house.
Measured: CDC tracking data. Figure above: 2008 to 2017, laboratory. Measured data period: 2005 to 2017 (every CDC figure on file).
Morris County, Compared
Morris County radon figures, compared
Calculated by Radon411CDC's largest figure for Morris County rests on 3 tests over the 2007 to 2016 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 33.3 points and no rank or comparison is drawn from it. Results reached as high as 1.3 pCi/L, with a middle value of 0.9 pCi/L.
The nearest counties with a figure are Smith County (60 miles away) at 9.1%, Collin County (107 miles away) at 7.7% and Dallas County (121 miles away) at 8.7%. Pooled across 140 Texas counties, 10.4% of reported tests reached that level; across every county in the country with a figure, 35.8%.
Statewide for the same period, Randall County reported the highest share (71.4%) and Nueces County the lowest (0.0%). EPA's 1993 map puts Morris County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 100% of the county's land low radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Morris County, Geology
The ground under Morris County
PredictedUSGS's geologic map puts all of Morris County's mapped land in one class: low radon potential. All of it lies in the area the map calls East Texas Province, to which USGS gives a radon index of 6, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| East Texas Province | Cretaceous through Quaternary marine sandstone, shale, chalk, limestone, siltstone, clay, and lignite. | Low | 6 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Morris County beside the ground around it
Across Texas 0.5% of the land is rated high; none of Morris County's is. Of the 7 counties that border it, 1 has more moderate-potential ground, Red River County the most at 20.6%.
The map rates the ground, not the air in any home.
Local help
Morris County, Local resources
Radon testing and mitigation in Morris County
- Texas Radon GroupTexas Radon Group, run by Texas Tech University, does not license radon professionals and offers free or discounted test kits, and answers questions about testing and mitigation in Texas.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
The Texas Radon Group offers free radon test kits for Texas individuals who qualify.
- Compare kits
- Professionals in Texas7 professionals are listed in Texas.
What Texas's program says
- Licensing of radon professionals
There are no radon certification requirements for the State of Texas at this time, but the National Radon Proficiency Program lists radon testers and mitigators within Texas that have passed a rigorous national certification program.
What it means
Morris County, Questions
Questions about radon in Morris County
Are radon levels high in Morris County?
Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Morris County, Texas were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.9 pCi/L. Of the 8 nearest counties with a figure, within 199 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 17.1%.
Which counties border Morris County?
Morris County borders 7 counties: Titus County, Camp County, Cass County, Bowie County, Upshur County, Marion County and Red River County.
Products
Morris County, Products
Testing a home in Morris County
No CDC figure names Morris County; the nearest county with one, Smith County (60 miles away), reported 9.1% of its tests at or above 4 pCi/L over the 2007 to 2016 laboratory totals, the only reading nearby until a test of this home. Zone 3 is the lowest label, yet homes at or above 4 pCi/L occur in every zone: a short-term kit (2 to 90 days) is the quick first check in Morris County.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL416 long-term radon test kit, lab fee included
- Lab fee included
Method: Alpha track
In home: 90 days to 12 months
MonitorAEGTEST
HOUND-3786 rechargeable radon monitor with a 3.5-inch color screen
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Ion chamber
First reading: Within 10 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Morris County, Bordering counties
Counties bordering Morris County
Calculated by Radon411- Radon levels in Titus CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 0.1 pCi/L · 1 test
- Radon levels in Cass CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 1.6 pCi/L · 1 test
- Radon levels in Upshur CountyEPA zone 3
0.0%at or above 4 pCi/L
Median 1.6 pCi/L · 4 tests
- Radon levels in Camp CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Bowie CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Marion CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Red River CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
Morris County, Cities and towns
Cities and towns in Morris County
The Census Bureau estimates 12,133 residents in Morris County for July 1, 2025, 155 more than in 2020 (+1.3%). That works out to 48 people per square mile of land. Its largest town, Daingerfield, has 2,539 residents, 20.9% of the total. Testing is reported here more often than across the state: CDC's 3 reported tests for 2007 to 2016 come to 0.2 for every 1,000 residents (2025 estimate), against 0.1 for Texas.
From Daingerfield to Omaha, CDC publishes no figure by town: each reads Morris County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Daingerfield | 2,539 | +1.0% | 20.9% |
| Hughes Springsextends beyond Morris County | 1,531 | −3.6% | Counted whole |
| Naples | 1,409 | +0.7% | 11.6% |
| Lone Star | 1,391 | −0.3% | 11.5% |
| Omaha | 936 | +0.4% | 7.7% |
5 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). A place that extends beyond Morris County is counted whole, so it has no share.
Morris County, Homes
Homes in Morris County
Morris County is a place of houses on their own lots: 76% of its 5,812 homes are detached single-family houses, against 65% across Texas. The homes are older than Texas' as a whole: half were built before 1975 (1990 for Texas), and 22% date from before 1960. Owners live in 75% of the occupied homes (Texas: 63%), so for most households a test and a fix are their own to order.
| Homes | Morris County | Texas |
|---|---|---|
| Housing units | 5,812 | 11,890,808 |
| Detached houses | 76% | 65% |
| In buildings of 5 or more | 1% | 21% |
| Mobile homes | 15% | 7% |
| Built before 1960 | 22% | 13% |
| Built since 2000 | 14% | 37% |
| Middle year built | 1975 | 1990 |
| Owner-occupied | 75% | 63% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.