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Marietta, Texas
Inside Marietta's city limits, shrink-swell clay limits houses without basements on 0% of mapped land. A shallow water table limits basements on 70%, the highest of 9 cities in Cass County.
That clay share is close to Cass County's 4%. FEMA's flood data list no flood losses since 2016 in ZIP code 75566 overlapping the city.
Data as of October 13, 2026 · sources · in Cass County
expansive clay: shrink-swell limits slab homes
high water table: limits basements
flood losses since 2016 in 1 overlapping ZIP
Foundation repair in Marietta
Foundation repair in Marietta: shrink-swell clay limits slab homes on 0% of Marietta's mapped land.
| Who designs the repair | The ASCE Texas Section's repair guidelines say a Texas-licensed engineer should evaluate the foundation and design the repair (2022 guidelines) |
| Prices | Cost guide ranges compared |
Soil under Marietta city limits
| Expansive clay (limits slab homes) | 0.0% |
| High water table (limits basements) | 69.8% |
| Septic fields very limited | 90.0% |
| Clay swell (LEP, by area) | 1.3% |
| High-swell land (LEP 6%+) | 0.0% |
| Mapped soil | 369 acres |
What the numbers mean here
On 70% of Marietta's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
USDA rates 90% of the land very limited for septic absorption fields.
Drought in Cass County
100% of Cass County is in drought (D1 or worse) on the October 13, 2026 map. County detail.
Flood losses by ZIP code
FEMA flood records since 2016 in the ZIP codes that overlap Marietta. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 75566 | 100% | 0 | $0 |
Homes
Marietta has fewer than 100 housing units in the ACS 2020-2024 estimates, too few for reliable shares.
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Naples | 8 mi | 16% | 52% |
| Douglassville | 11 mi | 0% | 33% |
| Omaha | 11 mi | 7% | 52% |
| Hughes Springs | 13 mi | 0% | 18% |
| Daingerfield | 14 mi | 0% | 10% |
| Linden | 15 mi | 0% | 23% |
| Maud | 16 mi | 8% | 71% |
| Lone Star | 19 mi | 0% | 14% |
Sources: USDA SSURGO (August 5, 2026) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026). Methods · Data status