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Kerrville, Texas
Inside Kerrville's city limits, shrink-swell clay limits houses without basements on 33% of mapped land. A shallow water table limits basements on 0%.
That clay share is close to Kerr County's 33%. FEMA's flood data list 80 flood losses since 2016 in ZIP code 78028 overlapping the city. Of its 11,650 homes, 44% were built before 1980; the median dates from 1983.
Data as of October 13, 2026 · sources · in Kerr County
expansive clay: shrink-swell limits slab homes
high water table: limits basements
flood losses since 2016 in 1 overlapping ZIP
of homes built before 1980
Foundation repair in Kerrville
Foundation repair in Kerrville: shrink-swell clay limits slab homes on 33% of Kerrville's mapped land.
About 7,400 of Kerrville's 11,650 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 Kerrville city limits
| Expansive clay (limits slab homes) | 32.6% |
| High water table (limits basements) | 0.0% |
| Septic fields very limited | 85.7% |
| Clay swell (LEP, by area) | 5.4% |
| High-swell land (LEP 6%+) | 33.4% |
| Urban land, not rated | 11.1% |
| Mapped soil | 15,167 acres |
| Soil series | Share here | Series nationally: expansive clay |
|---|---|---|
| Kerrville | 20% | n/a |
| Krum | 14% | n/a |
| Nuvalde | 12% | n/a |
| Oakalla | 7% | n/a |
| Doss | 6% | n/a |
| Real | 6% | n/a |
What the numbers mean here
Clay swell averages a linear extensibility of 5.4% by land area here, and 33% of the land reaches USDA's high class (6% or more). Clay like that swells when wet and shrinks when dry, under 33% of the mapped land.
USDA rates 86% of the land very limited for septic absorption fields.
Drought in Kerr County
0% of Kerr 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 Kerrville. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 78028 | over 99% | 80 | $4.4 million |
Homes in Kerrville
| Housing units | 11,650 |
| Median year built | 1983 |
| Built before 1980 | 44% |
| Built 2000 or later | 27% |
| Owner-occupied | 59% |
| Median value, owner-occupied | $303,400 |
| Single-family detached | 63% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Ingram | 7 mi | 34% | 0% |
| Fredericksburg | 22 mi | 42% | 0% |
| Bandera | 22 mi | 56% | 0% |
| Boerne | 30 mi | 43% | 0% |
| Fair Oaks Ranch | 36 mi | 46% | under 1% |
| Grey Forest | 40 mi | 56% | 0% |
| Helotes | 42 mi | 53% | 0% |
| Blanco | 43 mi | 28% | 0% |
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