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Mustang Ridge, Texas
Inside Mustang Ridge's city limits, shrink-swell clay limits houses without basements on 88% of mapped land, the highest of 18 cities in Travis County. A shallow water table limits basements on under 1%.
That clay share is above Travis County's 39%. FEMA's flood data list 25 flood losses since 2016 in the 3 ZIP codes overlapping the city. Of its 553 homes, 18% were built before 1980; the median dates from 1995.
Data as of October 13, 2026 · sources · in Travis County
expansive clay: shrink-swell limits slab homes
high water table: limits basements
flood losses since 2016 in 3 overlapping ZIPs
of homes built before 1980
Foundation repair in Mustang Ridge
Foundation repair in Mustang Ridge: shrink-swell clay limits slab homes on 88% of Mustang Ridge's mapped land, more than in 96% of Texas cities.
About 400 of Mustang Ridge's 553 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 Mustang Ridge city limits
| Expansive clay (limits slab homes) | 88.2% |
| High water table (limits basements) | under 0.1% |
| Septic fields very limited | 88.2% |
| Clay swell (LEP, by area) | 11.5% |
| High-swell land (LEP 6%+) | 88.2% |
| Mapped soil | 2,386 acres |
| Soil series | Share here | Series nationally: expansive clay |
|---|---|---|
| Houston Black | 39% | 91% |
| Heiden | 23% | 80% |
| Burleson | 19% | 84% |
| Wilson | 10% | 88% |
| Fett | 4% | n/a |
| Ferris | 1% | n/a |
What the numbers mean here
Clay swell averages a linear extensibility of 11.5% by land area here, and 88% of the land reaches USDA's high class (6% or more). Clay like that swells when wet and shrinks when dry, under 88% of the mapped land.
Clay shrinks as it dries: 100% of Travis County is in drought on the latest map, and 88% of Mustang Ridge's mapped land has shrink-swell clay.
USDA rates 88% of the land very limited for septic absorption fields.
Drought in Travis County
100% of Travis 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 Mustang Ridge. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 78610 | 64% | 18 | $272,344 |
| 78616 | 17% | 0 | $0 |
| 78747 | 12% | 7 | $63,651 |
Homes in Mustang Ridge
| Housing units | 553 |
| Median year built | 1995 |
| Built before 1980 | 18% |
| Built 2000 or later | 45% |
| Owner-occupied | 90% |
| Median value, owner-occupied | $320,900 |
| Single-family detached | 67% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Creedmoor | 3 mi | 85% | under 1% |
| Niederwald | 6 mi | 84% | 1% |
| Uhland | 8 mi | 82% | under 1% |
| Buda | 9 mi | 61% | under 1% |
| San Leanna | 10 mi | 35% | 0% |
| Hays | 11 mi | 25% | 0% |
| Mountain City | 11 mi | 17% | 0% |
| Kyle | 12 mi | 51% | under 1% |
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