
Short-term kit![]()
Radon Short Term Test Kit short-term charcoal radon test kit, lab fee included
- Lab fee included
Method: Charcoal
In home: 2 to 7 days
Locations and reports
EPA puts Archer County in Zone 3, its lowest radon zone. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Nearest county
7.2%
Denton County, 95 miles
Share at 4+ pCi/L, 181 tests, 2007 to 2016
Ground above low
None
27.3 pts below Texas
Share of land USGS rates moderate or high potential
Tests reported
0
None published
A home here needs its own test
EPA radon zone
Zone 3
Lower potential
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Archer County
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
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
Archer County, At a glance
Predicted: EPA radon zone
USGS geologic potential: Low across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
CDC has published no radon test figures for Archer County. Denton County, 95 miles away, is the nearest county with a figure over the 2007 to 2016 laboratory totals.
Archer County, Compared
Archer County has no radon test figure of its own from CDC, whose counts over the 2007 to 2016 laboratory totals name 140 other Texas counties and leave it out. Pooled across 140 Texas counties, 10.4% of reported tests reached that level; across every county in the country with a figure, 35.8%.
The nearest counties with a figure are Denton County (95 miles away) at 7.2%, Tarrant County (100 miles away) at 10.6% and Dallas County (125 miles away) at 8.7%. 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 Archer 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.
Archer County, Geology
USGS's geologic map puts all of Archer County's mapped land in one class: low radon potential. All of it lies in the area the map calls Central Texas, to which USGS gives a radon index of 7, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Central Texas | Cretaceous through Quaternary marine sandstone, shale, chalk, limestone, siltstone, clay, and lignite. | Low | 7 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Across Texas 0.5% of the land is rated high; none of Archer County's is. None of the 7 counties that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
Archer County, Local resources
The Texas Radon Group offers free radon test kits for Texas individuals who qualify.
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
Archer County, Questions
No CDC testing statistics are published here for Archer County, Texas yet. Of the 8 nearest counties with a figure, within 206 miles, the share of tests at or above 4 pCi/L runs from 7.2% to 71.4%.
Archer County borders 7 counties: Wichita County, Clay County, Baylor County, Young County, Jack County, Throckmorton County and Wilbarger County.
Products
Archer County, Products
No CDC figure names Archer County; the nearest county with one, Denton County (95 miles away), reported 7.2% 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 Archer County.
Test kits and monitors: 1 of 3
Explore
Archer County, Bordering counties
0.0%at or above 4 pCi/L
Median 0.7 pCi/L · 9 tests
0.0%at or above 4 pCi/L
Median 2.6 pCi/L · 1 test
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
Archer County, Cities and towns
Archer County is growing: the Census Bureau puts it at 9,129 residents on July 1, 2025, up 6.7% from 8,553 in 2020. That works out to 10 people per square mile of land. No town dominates: Holliday, the largest, has 1,733 residents, 19.0% of the total. CDC publishes no radon test count for Archer County; across Texas its counts for 2007 to 2016 come to 0.1 tests for every 1,000 residents (2025 estimate).
From Holliday to Megargel, CDC publishes no figure by town: each reads Archer County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Holliday | 1,733 | +13.4% | 19.0% |
| Archer City | 1,627 | +1.6% | 17.8% |
| Lakeside City | 1,307 | +20.6% | 14.3% |
| Scotland | 432 | +4.1% | 4.7% |
| Windthorstextends beyond Archer County | 354 | +2.9% | Counted whole |
| Megargel | 178 | +1.1% | 1.9% |
6 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 Archer County is counted whole, so it has no share.
Archer County, Homes
Archer County is a place of houses on their own lots: 85% of its 3,920 homes are detached single-family houses, against 65% across Texas. The homes are older than Texas' as a whole: half were built before 1979 (1990 for Texas), and 27% date from before 1960. Owners live in 85% of the occupied homes (Texas: 63%), so for most households a test and a fix are their own to order.
| Homes | Archer County | Texas |
|---|---|---|
| Housing units | 3,920 | 11,890,808 |
| Detached houses | 85% | 65% |
| In buildings of 5 or more | 1% | 21% |
| Mobile homes | 11% | 7% |
| Built before 1960 | 27% | 13% |
| Built since 2000 | 18% | 37% |
| Middle year built | 1979 | 1990 |
| Owner-occupied | 85% | 63% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.