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Burnet, Texas
Inside Burnet's city limits, shrink-swell clay limits houses without basements on 25% of mapped land, the 5th-highest of 8 cities in Burnet County. A shallow water table limits basements on 0%.
That clay share is close to Burnet County's 27%. FEMA's flood data list 40 flood losses since 2016 in ZIP code 78611 overlapping the city. Of its 2,614 homes, 48% were built before 1980; the median dates from 1982.
Data as of October 13, 2026 · sources · in Burnet 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 Burnet
Foundation repair in Burnet: shrink-swell clay limits slab homes on 25% of Burnet's mapped land.
About 2,000 of Burnet's 2,614 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 Burnet city limits
| Expansive clay (limits slab homes) | 25.5% |
| High water table (limits basements) | 0.0% |
| Septic fields very limited | 82.3% |
| Clay swell (LEP, by area) | 4.8% |
| High-swell land (LEP 6%+) | 21.1% |
| Mapped soil | 6,728 acres |
What the numbers mean here
Clay swell averages a linear extensibility of 4.8% by land area here, and 21% of the land reaches USDA's high class (6% or more). Clay like that swells when wet and shrinks when dry, under 25% of the mapped land.
Clay shrinks as it dries: 21.3% of Burnet County is in drought on the latest map, and 25% of Burnet's mapped land has shrink-swell clay.
USDA rates 82% of the land very limited for septic absorption fields.
Drought in Burnet County
21.3% of Burnet 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 Burnet. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 78611 | 100% | 40 | $2.2 million |
Homes in Burnet
| Housing units | 2,614 |
| Median year built | 1982 |
| Built before 1980 | 48% |
| Built 2000 or later | 35% |
| Owner-occupied | 75% |
| Median value, owner-occupied | $277,400 |
| Single-family detached | 78% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Bertram | 10 mi | 39% | 0% |
| Meadowlakes | 13 mi | 64% | 0% |
| Marble Falls | 13 mi | 44% | under 1% |
| Granite Shoals | 14 mi | 0% | 0% |
| Highland Haven | 14 mi | 6% | 0% |
| Cottonwood Shores | 15 mi | 20% | 0% |
| Sunrise Beach Village | 16 mi | 1% | 0% |
| Horseshoe Bay | 17 mi | 10% | 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