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Cedar Hill, Texas
Inside Cedar Hill's city limits, shrink-swell clay limits houses without basements on 37% of mapped land. A shallow water table limits basements on under 1%.
That clay share is below Dallas County's 51%. FEMA's flood data list 11 flood losses since 2016 in ZIP code 75104 overlapping the city. Of its 17,499 homes, 13% were built before 1980; the median dates from 1995.
Data as of October 13, 2026 · sources · in Dallas 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 Cedar Hill
Foundation repair in Cedar Hill: shrink-swell clay limits slab homes on 37% of Cedar Hill's mapped land.
About 14,400 of Cedar Hill's 17,499 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 Cedar Hill city limits
| Expansive clay (limits slab homes) | 36.6% |
| High water table (limits basements) | under 0.1% |
| Septic fields very limited | 88.7% |
| Clay swell (LEP, by area) | 5.7% |
| High-swell land (LEP 6%+) | 30.1% |
| Mapped soil | 22,958 acres |
What the numbers mean here
Clay swell averages a linear extensibility of 5.7% by land area here, and 30% of the land reaches USDA's high class (6% or more). Clay like that swells when wet and shrinks when dry, under 37% of the mapped land.
Clay shrinks as it dries: 100% of Dallas County is in drought on the latest map, and 37% of Cedar Hill's mapped land has shrink-swell clay.
USDA rates 89% of the land very limited for septic absorption fields.
Drought in Dallas County
100% of Dallas 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 Cedar Hill. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 75104 | 96% | 11 | $576,248 |
Homes in Cedar Hill
| Housing units | 17,499 |
| Median year built | 1995 |
| Built before 1980 | 13% |
| Built 2000 or later | 40% |
| Owner-occupied | 71% |
| Median value, owner-occupied | $302,700 |
| Single-family detached | 82% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Duncanville | 5 mi | 31% | under 1% |
| Ovilla | 5 mi | 56% | under 1% |
| DeSoto | 6 mi | 49% | under 1% |
| Glenn Heights | 7 mi | 75% | under 1% |
| Grand Prairie | 7 mi | 58% | 2% |
| Oak Leaf | 8 mi | 77% | under 1% |
| Midlothian | 8 mi | 44% | under 1% |
| Mansfield | 9 mi | 73% | 4% |
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