HomeTexasPolk CountyCorrigan
Corrigan, Texas
Inside Corrigan's city limits, shrink-swell clay limits houses without basements on under 1% of mapped land. A shallow water table limits basements on 72%, the 2nd-highest of 5 cities in Polk County.
That clay share is below Polk County's 23%. FEMA's flood data list 3 flood losses since 2016 in ZIP code 75939 overlapping the city. Of its 811 homes, 68% were built before 1980; the median dates from 1974.
Data as of October 13, 2026 · sources · in Polk 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 Corrigan
Foundation repair in Corrigan: shrink-swell clay limits slab homes on under 1% of Corrigan's mapped land.
About 300 of Corrigan's 811 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 Corrigan city limits
| Expansive clay (limits slab homes) | 0.4% |
| High water table (limits basements) | 72.2% |
| Septic fields very limited | 77.1% |
| Clay swell (LEP, by area) | 2.6% |
| High-swell land (LEP 6%+) | 0.4% |
| Mapped soil | 1,470 acres |
| Soil series | Share here | Series nationally: expansive clay |
|---|---|---|
| Colita | 31% | n/a |
| Laska | 28% | n/a |
| Keltys | 11% | n/a |
| Diboll | 5% | n/a |
| Hatliff | 4% | n/a |
| Oakhurst | 4% | n/a |
What the numbers mean here
On 72% of Corrigan's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
USDA rates 77% of the land very limited for septic absorption fields.
Drought in Polk County
2.1% of Polk 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 Corrigan. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 75939 | 100% | 3 | $160,812 |
Homes in Corrigan
| Housing units | 811 |
| Median year built | 1974 |
| Built before 1980 | 68% |
| Built 2000 or later | 14% |
| Owner-occupied | 41% |
| Median value, owner-occupied | $122,900 |
| Single-family detached | 43% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Seven Oaks | 10 mi | 8% | 83% |
| Diboll | 13 mi | 11% | 63% |
| Chester | 14 mi | 42% | 30% |
| Burke | 17 mi | 4% | 79% |
| Groveton | 18 mi | 0% | 87% |
| Onalaska | 21 mi | 15% | 46% |
| Livingston | 21 mi | 55% | 44% |
| Hudson | 22 mi | 10% | 62% |
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