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Kingsbury, Texas
Inside Kingsbury's city limits, shrink-swell clay limits houses without basements on 35% of mapped land. A shallow water table limits basements on 12%, the highest of 8 cities in Guadalupe County.
That clay share is below Guadalupe County's 52%. FEMA's flood data list 2 flood losses since 2016 in ZIP code 78638 overlapping the city.
Data as of October 13, 2026 · sources · in Guadalupe County
expansive clay: shrink-swell limits slab homes
high water table: limits basements
flood losses since 2016 in 1 overlapping ZIP
Foundation repair in Kingsbury
Foundation repair in Kingsbury: shrink-swell clay limits slab homes on 35% of Kingsbury'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 Kingsbury city limits
| Expansive clay (limits slab homes) | 34.9% |
| High water table (limits basements) | 11.5% |
| Septic fields very limited | 62.6% |
| Clay swell (LEP, by area) | 5.9% |
| High-swell land (LEP 6%+) | 34.9% |
| Mapped soil | 1,646 acres |
| Soil series | Share here | Series nationally: expansive clay |
|---|---|---|
| Crockett | 23% | 94% |
| Vernia | 22% | n/a |
| Mabank | 9% | n/a |
| Quihi | 7% | n/a |
| Darst | 6% | n/a |
| Robco | 5% | n/a |
What the numbers mean here
Clay swell averages a linear extensibility of 5.9% by land area here, and 35% of the land reaches USDA's high class (6% or more). Clay like that swells when wet and shrinks when dry, under 35% of the mapped land.
Clay shrinks as it dries: 100% of Guadalupe County is in drought on the latest map, and 35% of Kingsbury's mapped land has shrink-swell clay.
USDA rates 63% of the land very limited for septic absorption fields.
Drought in Guadalupe County
100% of Guadalupe 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 Kingsbury. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 78638 | 100% | 2 | $1,536 |
Homes
Kingsbury 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 |
|---|---|---|---|
| Staples | 8 mi | 83% | under 1% |
| Seguin | 10 mi | 74% | 2% |
| Luling | 11 mi | 75% | 3% |
| Martindale | 14 mi | 70% | under 1% |
| San Marcos | 17 mi | 56% | under 1% |
| Lockhart | 18 mi | 79% | under 1% |
| New Braunfels | 18 mi | 59% | under 1% |
| Marion | 20 mi | 84% | under 1% |
Sources: USDA SSURGO (August 5, 2026) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026). Methods · Data status