HomeSoil seriesAustin
Austin soil series
Austin soils cover 351,463 mapped acres, almost all of them in Texas. USDA rates shrink-swell a limit for houses without basements on 93% of that land, and a shallow water table a limit for basements on 0%.
It is the leading soil series by area in 17 of the counties and cities on this site.
SSURGO survey versions to August 5, 2026 · series description revised 2017-08
of its land: shrink-swell limits houses without basements
of its land: a shallow water table limits basements
median highest linear extensibility (6% and up is high)
median highest clay content in the top 150 cm
USDA's description
The Austin series consists of moderately deep, well drained, moderately slowly permeable soils that formed in residuum weathered from chalk. These soils are on nearly level to sloping erosional uplands. Slopes range from 0 to 8 percent. Mean annual precipitation is about 915 mm (36 in) and the mean air temperature is about 19 degrees C (66 degrees F).
Source: USDA NRCS series description (OSD) for Austin, revised 2017-08. Read it.
Engineering properties
| Mapped area (SSURGO) | 351,463 acres |
| Shrink-swell limits houses without basements | 92.7% |
| Shallow water table limits basements | 0.0% |
| Very limited for septic absorption fields | 96.8% |
| Most common drainage class | Well drained |
| Most common hydrologic soil group | D |
| Taxonomic class | Fine-silty, carbonatic, thermic Udorthentic Haplustolls |
| Type location | McLennan County, Texas |
Where Austin is mapped
| State | Mapped acres |
|---|---|
| Texas | 351,463 |
Places where Austin leads
Counties and cities where Austin covers more mapped land than any other series.
| Place | Share of mapped land |
|---|---|
| Milford, TX | 60% |
| Balcones Heights, TX | 52% |
| Oak Leaf, TX | 51% |
| Glenn Heights, TX | 43% |
| Olmos Park, TX | 42% |
| Ovilla, TX | 38% |
| Weir, TX | 36% |
| Abbott, TX | 34% |
| Clarksville, TX | 33% |
| Red Oak, TX | 33% |
| Troy, TX | 32% |
| Hewitt, TX | 31% |
| DeSoto, TX | 26% |
| Lorena, TX | 25% |
| Live Oak, TX | 24% |
| Highland Park, TX | 16% |
| Round Rock, TX | 15% |
Other places where Austin is a main soil
Counties and cities where Austin is among the six soil series covering the most mapped land, but not the first. Share of the place's mapped land.
Counties
- Collin County, TX 11%
- Ellis County, TX 9%
- Dallas County, TX 7%
- Bell County, TX 5%
- Williamson County, TX 5%
- Travis County, TX 3%
Texas and Ohio cities
- New Hope, TX 27%
- Jarrell, TX 27%
- Allen, TX 25%
- Waxahachie, TX 24%
- Lancaster, TX 24%
- Anna, TX 23%
- McKinney, TX 22%
- Fairview, TX 22%
- Knollwood, TX 21%
- Melissa, TX 21%
- Tom Bean, TX 20%
- Whitewright, TX 19%
- Van Alstyne, TX 19%
- Windcrest, TX 18%
- Duncanville, TX 18%
- Plano, TX 18%
- Richardson, TX 18%
- Leon Valley, TX 18%
- Pflugerville, TX 17%
- Hutchins, TX 17%
- Temple, TX 17%
- Castle Hills, TX 16%
- West, TX 16%
- Midlothian, TX 15%
- University Park, TX 14%
- Italy, TX 14%
- Mountain City, TX 13%
- Prosper, TX 13%
- Cedar Hill, TX 12%
- Lowry Crossing, TX 12%
- Frisco, TX 12%
- Pecan Hill, TX 11%
- Howe, TX 11%
- Cockrell Hill, TX 11%
- Bruceville-Eddy, TX 11%
- Parker, TX 11%
- Carl's Corner, TX 10%
- Sherman, TX 10%
- Honey Grove, TX 10%
- Beverly Hills, TX 9%
- Addison, TX 9%
- Dallas, TX 8%
- Alamo Heights, TX 8%
- Cibolo, TX 8%
- Lucas, TX 7%
- Murphy, TX 7%
- Schertz, TX 7%
- Universal City, TX 7%
- Creedmoor, TX 6%
- Austin, TX 6%
- Georgetown, TX 6%
- Celina, TX 6%
- Kyle, TX 6%
- Waco, TX 6%
- Southmayd, TX 6%
- Terrell Hills, TX 5%
- San Antonio, TX 4%
- Woodway, TX 3%
- Blue Ridge, TX 2%
- Trenton, TX 2%
Sources
Shares and properties: USDA NRCS SSURGO via Soil Data Access, weighted by each component's share of its map units. Description: the USDA NRCS series description. How we count.