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Winnsboro, Texas
Inside Winnsboro's city limits, shrink-swell clay limits houses without basements on 15% of mapped land, the 5th-highest of 6 cities in Wood County. A shallow water table limits basements on 44%, the 5th-highest of 6 cities in Wood County.
That clay share is close to Wood County's 18%. FEMA's flood data list 2 flood losses since 2016 in ZIP code 75494 overlapping the city. Of its 1,349 homes, 69% were built before 1980; the median dates from 1971.
Data as of October 13, 2026 · sources · in Wood 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 Winnsboro
Foundation repair in Winnsboro: shrink-swell clay limits slab homes on 15% of Winnsboro's mapped land.
About 1,000 of Winnsboro's 1,349 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 Winnsboro city limits
| Expansive clay (limits slab homes) | 15.0% |
| High water table (limits basements) | 44.2% |
| Septic fields very limited | 75.7% |
| Clay swell (LEP, by area) | 3.8% |
| High-swell land (LEP 6%+) | 15.0% |
| Urban land, not rated | 1.4% |
| Mapped soil | 2,402 acres |
What the numbers mean here
On 44% of Winnsboro's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
USDA rates 76% of the land very limited for septic absorption fields.
Drought in Wood County
100% of Wood 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 Winnsboro. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 75494 | 100% | 2 | $0 |
Homes in Winnsboro
| Housing units | 1,349 |
| Median year built | 1971 |
| Built before 1980 | 69% |
| Built 2000 or later | 9% |
| Owner-occupied | 53% |
| Median value, owner-occupied | $172,000 |
| Single-family detached | 75% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Como | 13 mi | 85% | 21% |
| Quitman | 14 mi | 53% | 70% |
| Mount Vernon | 16 mi | 57% | 48% |
| Rocky Mound | 16 mi | 0% | 43% |
| Yantis | 17 mi | 75% | 65% |
| Miller's Cove | 17 mi | 82% | 39% |
| Winfield | 18 mi | 74% | 61% |
| Pittsburg | 19 mi | 1% | 47% |
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