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Cranfills Gap, Texas
Inside Cranfills Gap's city limits, shrink-swell clay limits houses without basements on 48% of mapped land, the 2nd-highest of 7 cities in Bosque County. A shallow water table limits basements on 0%.
That clay share is above Bosque County's 29%. FEMA's flood data list no flood losses since 2016 in ZIP code 76637 overlapping the city. Of its 122 homes, 72% were built before 1980; the median dates from 1964.
Data as of October 13, 2026 · sources · in Bosque 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 Cranfills Gap
Foundation repair in Cranfills Gap: shrink-swell clay limits slab homes on 48% of Cranfills Gap's mapped land, more than in 56% of Texas cities.
About 100 of Cranfills Gap's 122 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 Cranfills Gap city limits
| Expansive clay (limits slab homes) | 48.5% |
| High water table (limits basements) | 0.0% |
| Septic fields very limited | 72.4% |
| Clay swell (LEP, by area) | 7.7% |
| High-swell land (LEP 6%+) | 52.3% |
| Mapped soil | 466 acres |
What the numbers mean here
Clay swell averages a linear extensibility of 7.7% by land area here, and 52% of the land reaches USDA's high class (6% or more). Clay like that swells when wet and shrinks when dry, under 48% of the mapped land.
Clay shrinks as it dries: 100% of Bosque County is in drought on the latest map, and 48% of Cranfills Gap's mapped land has shrink-swell clay.
USDA rates 72% of the land very limited for septic absorption fields.
Drought in Bosque County
100% of Bosque 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 Cranfills Gap. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 76637 | 100% | 0 | $0 |
Homes in Cranfills Gap
| Housing units | 122 |
| Median year built | 1964 |
| Built before 1980 | 72% |
| Built 2000 or later | 13% |
| Owner-occupied | 63% |
| Median value, owner-occupied | $102,100 |
| Single-family detached | 71% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Clifton | 15 mi | 33% | 0% |
| Iredell | 15 mi | 11% | 5% |
| Meridian | 15 mi | 36% | 0% |
| Hamilton | 18 mi | 50% | 0% |
| Hico | 19 mi | 39% | 1% |
| Walnut Springs | 20 mi | 64% | 0% |
| Morgan | 21 mi | 43% | 0% |
| Valley Mills | 23 mi | 23% | 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