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Raymondville, Texas
Inside Raymondville's city limits, shrink-swell clay limits houses without basements on 23% of mapped land, the highest of 3 cities in Willacy County. A shallow water table limits basements on 11%, the 2nd-highest of 3 cities in Willacy County.
That clay share is close to Willacy County's 18%. FEMA's flood data list 92 flood losses since 2016 in ZIP code 78580 overlapping the city. Of its 3,191 homes, 49% were built before 1980; the median dates from 1981.
Data as of October 13, 2026 · sources · in Willacy 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 Raymondville
Foundation repair in Raymondville: shrink-swell clay limits slab homes on 23% of Raymondville's mapped land.
About 2,300 of Raymondville's 3,191 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 Raymondville city limits
| Expansive clay (limits slab homes) | 23.0% |
| High water table (limits basements) | 11.4% |
| Septic fields very limited | 27.2% |
| Clay swell (LEP, by area) | 4.4% |
| High-swell land (LEP 6%+) | 23.0% |
| Mapped soil | 2,632 acres |
| Soil series | Share here | Series nationally: expansive clay |
|---|---|---|
| Raymondville | 25% | n/a |
| Racombes | 24% | n/a |
| Willacy | 19% | n/a |
| Hidalgo | 16% | 0% |
| Lyford | 3% | n/a |
| Rio | 1% | n/a |
What the numbers mean here
Clay swell averages a linear extensibility of 4.4% by land area here, and 23% of the land reaches USDA's high class (6% or more). Clay like that swells when wet and shrinks when dry, under 23% of the mapped land.
Clay shrinks as it dries: 100% of Willacy County is in drought on the latest map, and 23% of Raymondville's mapped land has shrink-swell clay.
Drought in Willacy County
100% of Willacy 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 Raymondville. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 78580 | 100% | 92 | $895,013 |
Homes in Raymondville
| Housing units | 3,191 |
| Median year built | 1981 |
| Built before 1980 | 49% |
| Built 2000 or later | 22% |
| Owner-occupied | 70% |
| Median value, owner-occupied | $52,200 |
| Single-family detached | 72% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Lyford | 4 mi | 6% | 11% |
| San Perlita | 9 mi | 3% | 24% |
| La Villa | 15 mi | 24% | 2% |
| Santa Rosa | 15 mi | 50% | 2% |
| Combes | 16 mi | 26% | 2% |
| Edcouch | 17 mi | 20% | under 1% |
| Primera | 18 mi | 18% | 3% |
| Elsa | 18 mi | 18% | 2% |
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