Water wells in Smith County, Texas
4,086 well reports on file. The median well here was taken to 107 ft and struck water at 80 ft — against 180 ft and 80 ft across Texas.
What you will drill through in Smith County
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Sand 433, Red Clay 470, Clay 310, Surface Sand 284, Concrete 190, Tan Sand 146 |
| 25–50 ft | Sand 134, Clay 91, Rock 79, Gray Clay 87, Gray Shale 82, Shale 79 |
| 50–100 ft | Sand 236, Shale 190, Rock 122, Clay 108, Gray Clay 65, Gray Sand 61 |
| 100–200 ft | Sand 333, Shale 263, Rock 113, Clay 129, Gray Sand 86, Gray Shale 88 |
| 200–300 ft | Sand 254, Shale 214, Clay 102, Gray Shale 82, Rock 51, Gray Sand 59 |
| 300–500 ft | Sand 241, Shale 238, Clay 113, Gray Shale 89, Rock 67, Gray Clay 54 |
| 500–1000 ft | Shale 207, Sand 154, Clay 78, Gray Shale 53, Rock 39, Gray Clay 35 |
| 1000–5000 ft | Sand 23, Shale 23, Clay 9, Gray Shale 7, Sandy Shale 5, Sand W/ Shale Strks. 1 |
The rock column here is what drillers wrote down, layer by layer, in their own words — 5,345,462 layers across 707,856 wells. It is not a geological survey: two drillers may call the same clay by two names, and this site does not correct them.
Who drills in Smith County
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Monitor | 1,392 | 34.1% | 25 |
| Domestic | 910 | 22.3% | 364 |
| Irrigation | 667 | 16.3% | 205 |
| Rig Supply | 310 | 7.6% | 270 |
| Environmental Soil Boring | 252 | 6.2% | 15 |
| Stock | 152 | 3.7% | 520 |
| Test Well | 82 | 2.0% | 40 |
| Injection | 81 | 2.0% | 41 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 1960s | 1 | 720 | 220 |
| 1970s | 1 | 6 | 0 |
| 2000s | 1,734 | 88 | 80 |
| 2010s | 1,495 | 115 | 78 |
| 2020s | 855 | 136 | 100 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 38664 | 2004 | 1,845 | 334 | 30 | Industrial |
| 467370 | 2017 | 1,832 | 639 | 302 | Public Supply |
| 554472 | 2020 | 1,750 | 592 | 1,100 | Public Supply |
| 549791 | 2020 | 1,745 | 592 | 36 | Test Well |
| 627787 | 2022 | 1,715 | 411 | 30 | Test Well |
| 442158 | 2017 | 1,693 | — | — | Test Well |
| 222690 | 2006 | 1,690 | 428 | 120 | Public Supply |
| 465365 | 2017 | 1,650 | — | — | Test Well |
| 440215 | 2016 | 1,650 | — | — | Test Well |
| 442110 | 2017 | 1,630 | — | — | Test Well |
Every figure on this site is a median, never an average. On reported yield the average is twice the median, because a handful of entries are typing errors — the largest reads 2,200,100 gallons per minute against 30,078 for the next one. Yields above 3,000 gpm (136 wells, 0.045%) and depths beyond 5,000 ft (103 wells, 0.016%) are kept in the file, marked, and left out of the medians.
Drilling a well in Smith County?
Depth is only half the quote. What it costs depends on the rock, the casing and the pump. Tell us where and we pass the request to licensed Texas drillers.
We are nobody's agent and have no arrangement with any firm today. What we do with this.
Counties with a comparable number of reports
A sliding window, not a ranking. Every county.