HomeTexasSmith CountyNew Chapel Hill
New Chapel Hill, Texas
Inside New Chapel Hill's city limits, shrink-swell clay limits houses without basements on 0% of mapped land. A shallow water table limits basements on 20%, the 4th-highest of 10 cities in Smith County.
That clay share is close to Smith County's 3%. FEMA's flood data list 4 flood losses since 2016 in ZIP code 75707 overlapping the city. Of its 321 homes, 38% were built before 1980; the median dates from 1986.
Data as of October 13, 2026 · sources · in Smith 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 New Chapel Hill
Foundation repair in New Chapel Hill: shrink-swell clay limits slab homes on 0% of New Chapel Hill's mapped land.
About 200 of New Chapel Hill's 321 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 New Chapel Hill city limits
| Expansive clay (limits slab homes) | 0.0% |
| High water table (limits basements) | 20.3% |
| Septic fields very limited | 74.8% |
| Clay swell (LEP, by area) | 2.1% |
| High-swell land (LEP 6%+) | 0.0% |
| Mapped soil | 1,558 acres |
What the numbers mean here
On 20% of New Chapel Hill's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
USDA rates 75% of the land very limited for septic absorption fields.
Drought in Smith County
100% of Smith 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 New Chapel Hill. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 75707 | 100% | 4 | $151,009 |
Homes in New Chapel Hill
| Housing units | 321 |
| Median year built | 1986 |
| Built before 1980 | 38% |
| Built 2000 or later | 33% |
| Owner-occupied | 70% |
| Median value, owner-occupied | $186,400 |
| Single-family detached | 78% |
Nearby cities
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