Water wells in San Jacinto County, Texas
1,823 well reports on file. The median well here was taken to 215 ft and struck water at 55 ft — against 180 ft and 80 ft across Texas.
What you will drill through in San Jacinto County
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Clay 955, Sand 655, Top Soil 233, Topsoil 207, Red Clay 120, Top 91 |
| 25–50 ft | Clay 425, Sand 380, Sand & Gravel 33, Gravel 30, Tan Clay 27, White Clay 27 |
| 50–100 ft | Clay 618, Sand 532, Rock 58, Gray Clay 49, Tan Clay 45, Blue Clay 37 |
| 100–200 ft | Sand 799, Clay 678, Rock 147, Gray Clay 51, Limestone 44, Shale 59 |
| 200–300 ft | Sand 452, Clay 318, Rock 86, Shale 67, Limestone 35, L. S. 30 |
| 300–500 ft | Sand 295, Clay 143, Shale 49, Rock 37, L. S. 9, Limestone 13 |
| 500–1000 ft | Sand 18, Clay 10, Shale 10, Gray Clay 2, Shale Grey 2, Clay & Shale 3 |
| 1000–5000 ft | Gray Sand 1, Gray Clay 1, Clay 1, Gray Clay & Sand 1, Shale 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 San Jacinto County
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 1,561 | 85.6% | 216 |
| Monitor | 58 | 3.2% | 40 |
| Industrial | 54 | 3.0% | 330 |
| Public Supply | 44 | 2.4% | 470 |
| Rig Supply | 33 | 1.8% | 312 |
| Irrigation | 32 | 1.8% | 300 |
| Environmental Soil Boring | 15 | 0.8% | 15 |
| Stock | 12 | 0.7% | 169 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 600 | 228 | 53 |
| 2010s | 633 | 220 | 55 |
| 2020s | 590 | 200 | 58 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 467564 | 2017 | 1,130 | 254 | 600 | Public Supply |
| 534532 | 2019 | 1,100 | 98 | 560 | Public Supply |
| 504431 | 2018 | 1,027 | 173 | 225 | Public Supply |
| 448681 | 2017 | 1,010 | 118 | 250 | Public Supply |
| 535694 | 2019 | 911 | 155 | 150 | Public Supply |
| 29949 | 2003 | 793 | 40 | 150 | Public Supply |
| 17318 | 2003 | 793 | 40 | 500 | Public Supply |
| 681153 | 2024 | 722 | 123 | 350 | Other |
| 29963 | 2002 | 706 | 99 | 320 | Public Supply |
| 15256 | 2002 | 706 | 99 | 1,500 | Public Supply |
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 San Jacinto 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.