Water wells in Jefferson County, Texas
4,157 well reports on file. The median well here was taken to 25 ft and struck water at 19 ft — against 180 ft and 80 ft across Texas.
What you will drill through in Jefferson County
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Clay 654, Top Soil 289, Brown Clay 225, Concrete 190, Sand 175, No Recovery 111 |
| 25–50 ft | Clay 169, Sand 128, Gray Clay 92, Brown Sand 65, Dark Tan Clay 64, Brown Clay 29 |
| 50–100 ft | Sand 161, Clay 144, Gray Clay 79, Gray Sand 37, White Sand 28, Blue Clay 12 |
| 100–200 ft | Sand 281, Clay 220, Gray Sand 153, Gray Clay 90, White Sand 32, Fine To Medium Sand 28 |
| 200–300 ft | Sand 142, Clay 78, Gray Sand 43, Fine To Medium Sand 30, Gray Clay 22, White Sand 6 |
| 300–500 ft | Sand 40, Clay 34, Gray Clay 6, Gray Sand 6, Shale 3, Fine To Medium Sand 3 |
| 500–1000 ft | Clay 4, Gray Sand 2, Sand 3, Very Fine To Large Sand 1, Blue Clay 1, Solid Gray & White Sand 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 Jefferson County
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Monitor | 2,468 | 59.4% | 22 |
| Domestic | 596 | 14.3% | 210 |
| Environmental Soil Boring | 501 | 12.1% | 15 |
| Rig Supply | 258 | 6.2% | 210 |
| Test Well | 83 | 2.0% | 25 |
| Irrigation | 82 | 2.0% | 140 |
| Stock | 49 | 1.2% | 160 |
| Injection | 39 | 0.9% | 38 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 1990s | 2 | 46 | — |
| 2000s | 1,827 | 25 | 20 |
| 2010s | 1,437 | 25 | 18 |
| 2020s | 891 | 25 | 19 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 687564 | 2024 | 2,355 | 18 | 15 | Domestic |
| 52149 | 2004 | 908 | — | — | Monitor |
| 192650 | 2007 | 825 | 29 | — | Industrial |
| 166402 | 2005 | 650 | 50 | 510 | Public Supply |
| 568825 | 2020 | 640 | 34 | — | Industrial |
| 167502 | 2003 | 640 | 46 | — | Domestic |
| 160485 | 2008 | 615 | 58 | — | Domestic |
| 286507 | 2009 | 610 | 24 | — | Rig Supply |
| 361163 | 2014 | 600 | 40 | 650 | Industrial |
| 361062 | 2014 | 600 | 40 | 650 | Industrial |
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 Jefferson 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.