Cass County, Texas
Shrink-swell clay limits houses without basements on 4% of Cass County's mapped land. A shallow water table limits basements on 37%.
100% of the county is in drought on the October 13, 2026 Drought Monitor map. FEMA's flood data list 4 flood losses here since 2016. 49% of homes were built before 1980, against 50% nationally; the median home dates from 1980.
Data as of October 13, 2026 · sources
expansive clay: shrink-swell limits slab homes
high water table: limits basements
in drought, October 13, 2026
of homes built before 1980
Soil under Cass County
| Expansive clay (limits slab homes) | 3.9% |
| High water table (limits basements) | 36.8% |
| Septic fields very limited | 75.8% |
| Clay swell (LEP, by area) | 2.7% |
| High-swell land (LEP 6%+) | 4.9% |
| Mapped soil | 601,784 acres |
How we count · survey areas TX616 (2025-09-05)
What the numbers mean here
On 37% of Cass County's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
Rain over the 12 months to August 2026: 39.09 in, 11.19 in below the 1991-2020 average year of 50.28 in.
USDA rates 76% of the land very limited for septic absorption fields.
Drought
100% of the county is in drought (D1 or worse) on the October 13, 2026 map. Part of the county was in drought in 42 of the last 52 weeks; the most was 100% of its area, in 28 weeks, most recently on the October 13, 2026 map.
| Category, October 13, 2026 | Share of county |
|---|---|
| D0 abnormally dry or worse | 100% |
| D1 moderate drought or worse | 100% |
| D2 severe or worse | 100% |
| D3 extreme or worse | 95.5% |
| D4 exceptional | 0% |
Flood losses since 2016
4 flood losses since 2016, $51,835 paid. The worst year was 2019, with 2.
| Year | Flood losses |
|---|---|
| 2016 | 1 |
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 2 |
| 2020 | 0 |
| 2021 | 0 |
| 2022 | 0 |
| 2023 | 0 |
| 2024 | 0 |
| 2025 | 1 |
| 2026 to date | 0 |
Rain
| Average year, 1991-2020 | 50.28 in |
| 12 months to August 2026 | 39.09 in (-11.19) |
| 2025 | 51.97 in (+1.69) |
| Wettest year since 1895 | 1905: 77.56 in |
| Driest year since 1895 | 2005: 27.77 in |
| Days with 1 inch or more, normal at LINDEN (5 mi away) | 17 |
Homes
| Housing units | 13,993 |
| Median year built | 1980 |
| Built before 1980 | 49% |
| Built 2000 or later | 23% |
| Owner-occupied | 77% |
| Median value, owner-occupied | $146,400 |
| Single-family detached | 74% |
What repairs cost
Published ranges from cost guides, not quotes. More sources, and where they disagree.
Cities in Cass County
| City | Expansive clay | High water table | Homes |
|---|---|---|---|
| Atlanta | under 1% | 49% | 2,495 |
| Avinger | 0% | 37% | 187 |
| Bloomburg | under 1% | 36% | 160 |
| Domino | 4% | 57% | 11 |
| Douglassville | 0% | 33% | 155 |
| Hughes Springs | 0% | 18% | 855 |
| Linden | 0% | 23% | 995 |
| Marietta | 0% | 70% | 93 |
| Queen City | under 1% | 31% | 763 |
Nearby counties
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Marion County, TX | 20 mi | 4% | 38% |
| Morris County, TX | 22 mi | 25% | 45% |
| Bowie County, TX | 25 mi | 32% | 60% |
| Miller County, AR | 31 mi | 43% | 70% |
| Titus County, TX | 36 mi | 50% | 50% |
| Camp County, TX | 37 mi | 9% | 56% |
| Harrison County, TX | 37 mi | 24% | 53% |
| Upshur County, TX | 42 mi | 2% | 38% |
Sources: USDA SSURGO (September 5, 2025) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026) · NOAA (August 2026) · Census ACS 2020-2024. Methods · Data status