Water wells in Terrell County, Texas
122 well reports on file. The median well here was taken to 690 ft and struck water at 460 ft — against 180 ft and 80 ft across Texas.
What you will drill through in Terrell County
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Limestone 17, White Limestone 20, Caliche 15, Tan Limestone 12, Top Soil 10, Topsoil 9 |
| 25–50 ft | Tan Limestone 4, White Limestone 3, Gray Limestone 3, Gravel 3, Brown Clay 3, Yellow Lime 1 |
| 50–100 ft | Tan Limestone 7, Gray Limestone 6, Yellow Clay 3, Limestone "White" 3, Red Shale 2, No Returns 2 |
| 100–200 ft | White Limestone 12, Tan Limestone 9, Grey Limestone 4, Clay "Brown" 2, Limestone "White" 2, Gray Limestone 2 |
| 200–300 ft | Tan Limestone 8, White Limestone 7, Limestone "Gray" 4, Gray Limestone 3, Limestone 2, Grey Limestone 2 |
| 300–500 ft | Tan Limestone 12, Gray Limestone 10, Grey Limestone 7, White Limestone 7, Limestone 5, Gray Clay 2 |
| 500–1000 ft | Tan Limestone 11, Gray Limestone 11, Grey Limestone 3, Yellow Limestone 3, Limestone 3, Gray Shale 3 |
| 1000–5000 ft | Water & Limestone & 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 Terrell County
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 55 | 45.1% | 720 |
| Stock | 44 | 36.1% | 680 |
| Environmental Soil Boring | 5 | 4.1% | 15 |
| Rig Supply | 5 | 4.1% | 620 |
| Public Supply | 4 | 3.3% | 800 |
| Industrial | 3 | 2.5% | 700 |
| Test Well | 3 | 2.5% | 27 |
| Irrigation | 2 | 1.6% | 740 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 49 | 702 | 463 |
| 2010s | 33 | 700 | 460 |
| 2020s | 40 | 642 | 460 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 166824 | 2008 | 1,105 | 825 | 12 | Domestic |
| 723562 | 2026 | 1,050 | — | — | Domestic |
| 144926 | 2008 | 1,050 | 670 | 6 | Domestic |
| 678112 | 2024 | 1,000 | 667 | — | Domestic |
| 273245 | 2011 | 962 | 746 | 3 | Stock |
| 420990 | 2016 | 942 | 647 | 3 | Domestic |
| 105789 | 2007 | 920 | 550 | 20 | Stock |
| 386661 | 2014 | 913 | 600 | 2 | Stock |
| 121653 | 2007 | 905 | 605 | 10 | Domestic |
| 709728 | 2025 | 904 | — | — | Domestic |
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 Terrell 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.