Commerce, Texas: what the ground under the city is like
Commerce sits in Hunt County, on blackland prairie and black belt. The soil mapped here is predominantly classified well drained — and that classification, not the rainfall total, is what decides how a slab foundation behaves.
Linear extensibility 14.8% — very high.
47% of the mapped soil area around Commerce is wet enough that the USDA describes it as needing artificial drainage.
Shallowest annual water table around 175 cm (5.7 ft).
Values are for Hunt County, which is what the soil survey resolves to. Full county report · soil map for a specific address.
The ground under Commerce
Blackland Prairie and Black Belt. Vertisols weathered from Cretaceous marl and chalk — smectite clay that cracks open in summer
The foundation repair capital of the United States. These are Vertisols: clays so expansive that the ground itself opens fissures you can put an arm into during drought, then swells shut after rain. Slabs crack here in houses with faultless drainage, because water is not the mechanism — volume change is.
When it shows up here
| Slab moisture | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ground movement | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
The mechanism here is the wet–dry cycle, and it peaks in the summer drought: clay shrinks hard from June to September, then the first heavy rain swells it back. Foundation cracks tend to appear at the ends of that swing, not during it.
Climate pattern for this physiographic region, not a forecast for your house and not from the soil survey. It answers a question homeowners actually ask: when does this show up.
What repairs cost in Texas
| Reference job | Modelled range |
|---|---|
| Slab foundation lifted and stabilised on 12 piers | $16,900–$36,100 |
| Two slab cracks injected + regrading around the perimeter | $1,900–$6,300 |
| Engineer's report plus buried downspout discharge | $1,200–$4,150 |
Regional factor for TX: ×0.94. Full cost breakdown for Texas · run your own dimensions.
ZIP codes in Commerce
75428, 75429
Soil does not stop at a city boundary, and neither does this data — every ZIP code above resolves to the same county soil survey. For the individual survey polygons around one address, use the soil map.
Other places in Hunt County
Questions about Commerce
Is the soil the same everywhere in Commerce?
No. These values describe Hunt County as a whole, which is the unit the soil survey publishes. Within a city, map units change over a few hundred metres — the soil map draws the actual polygons around a point and is the honest answer for one address.
Which contractor should I call in Commerce?
We do not rank or recommend individual firms and we are not one. What this page is for is knowing which kind of work the ground here points to before anyone quotes you, and which claim to check. If you want quotes, the form below passes your request to the named networks.
Does this replace an inspection?
No. It tells you what the ground is; an inspection tells you what your building is doing on it. The useful order is: read this, print the brief for your county, then have someone look.
Get quotes in Commerce
We pass what you enter to the contractor networks listed below. You choose whether to hire anyone.
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