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Granbury, Texas
Inside Granbury's city limits, shrink-swell clay limits houses without basements on 30% of mapped land, the 2nd-highest of 5 cities in Hood County. A shallow water table limits basements on 10%, the 2nd-highest of 5 cities in Hood County.
That clay share is above Hood County's 18%. FEMA's flood data list 60 flood losses since 2016 in the 2 ZIP codes overlapping the city. Of its 6,134 homes, 26% were built before 1980; the median dates from 2003.
Data as of October 13, 2026 · sources · in Hood 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 Granbury
Foundation repair in Granbury: shrink-swell clay limits slab homes on 30% of Granbury's mapped land.
About 3,600 of Granbury's 6,134 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 Granbury city limits
| Expansive clay (limits slab homes) | 30.1% |
| High water table (limits basements) | 9.8% |
| Septic fields very limited | 58.7% |
| Clay swell (LEP, by area) | 4.2% |
| High-swell land (LEP 6%+) | 14.0% |
| Mapped soil | 12,385 acres |
| Soil series | Share here | Series nationally: expansive clay |
|---|---|---|
| Bastrop | 16% | n/a |
| Granbury | 12% | n/a |
| Thurber | 5% | n/a |
| Aledo | 5% | n/a |
| Sunev | 4% | n/a |
| Decordova | 4% | n/a |
What the numbers mean here
Clay swell averages a linear extensibility of 4.2% by land area here, and 14% of the land reaches USDA's high class (6% or more). Clay like that swells when wet and shrinks when dry, under 30% of the mapped land.
Clay shrinks as it dries: 100% of Hood County is in drought on the latest map, and 30% of Granbury's mapped land has shrink-swell clay.
USDA rates 59% of the land very limited for septic absorption fields.
Drought in Hood County
100% of Hood 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 Granbury. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 76048 | 63% | 31 | $890,336 |
| 76049 | 37% | 29 | $949,962 |
Homes in Granbury
| Housing units | 6,134 |
| Median year built | 2003 |
| Built before 1980 | 26% |
| Built 2000 or later | 57% |
| Owner-occupied | 60% |
| Median value, owner-occupied | $315,800 |
| Single-family detached | 58% |
Nearby cities
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