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Broaddus, Texas
Inside Broaddus' city limits, shrink-swell clay limits houses without basements on 65% of mapped land, higher than 70% of Texas cities. A shallow water table limits basements on 27%.
That clay share is above San Augustine County's 20%. FEMA's flood data list 5 flood losses since 2016 in the 2 ZIP codes overlapping the city. Of its 119 homes, 40% were built before 1980; the median dates from 1986.
Data as of October 13, 2026 · sources · in San Augustine County
expansive clay: shrink-swell limits slab homes
high water table: limits basements
flood losses since 2016 in 2 overlapping ZIPs
of homes built before 1980
Foundation repair in Broaddus
Foundation repair in Broaddus: shrink-swell clay limits slab homes on 65% of Broaddus' mapped land, more than in 70% of Texas cities.
About 100 of Broaddus' 119 homes are detached houses.
| 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 Broaddus city limits
| Expansive clay (limits slab homes) | 64.8% |
| High water table (limits basements) | 27.0% |
| Septic fields very limited | 88.4% |
| Clay swell (LEP, by area) | 6.3% |
| High-swell land (LEP 6%+) | 62.5% |
| Mapped soil | 236 acres |
What the numbers mean here
Clay swell averages a linear extensibility of 6.3% by land area here, and 62% of the land reaches USDA's high class (6% or more). Clay like that swells when wet and shrinks when dry, under 65% of the mapped land.
Clay shrinks as it dries: 100% of San Augustine County is in drought on the latest map, and 65% of Broaddus' mapped land has shrink-swell clay.
On 27% of Broaddus' mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
USDA rates 88% of the land very limited for septic absorption fields.
Drought in San Augustine County
100% of San Augustine 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 Broaddus. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 75929 | 83% | 0 | $0 |
| 75972 | 17% | 5 | $31,883 |
Homes in Broaddus
| Housing units | 119 |
| Median year built | 1986 |
| Built before 1980 | 40% |
| Built 2000 or later | 0% |
| Owner-occupied | 65% |
| Median value, owner-occupied | $88,400 |
| Single-family detached | 77% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Zavalla | 13 mi | 10% | 32% |
| Chireno | 14 mi | 0% | 19% |
| Pineland | 18 mi | 44% | 56% |
| San Augustine | 18 mi | 0% | 32% |
| Huntington | 18 mi | 15% | 61% |
| Browndell | 21 mi | 33% | 60% |
| Hemphill | 25 mi | 64% | 26% |
| Lufkin | 27 mi | 21% | 44% |
Sources: USDA SSURGO (August 5, 2026) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026) · Census ACS 2020-2024. Methods · Data status