Water wells in Colorado County, Texas
3,951 well reports on file. The median well here was taken to 165 ft and struck water at 66 ft — against 180 ft and 80 ft across Texas.
What you will drill through in Colorado County
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Sand 580, Clay 533, Top Soil 571, Topsoil 569, Red Clay 347, Yellow Clay 299 |
| 25–50 ft | Sand 529, Clay 228, Tan Clay 178, White Clay 135, Red Clay 128, Sand & Gravel 122 |
| 50–100 ft | Sand 817, Clay 329, Rock 266, Tan Clay 246, White Clay 217, Sand & Rock 154 |
| 100–200 ft | Sand 1,154, Rock 572, Clay 445, Tan Clay 377, White Clay 257, Sand & Rock 206 |
| 200–300 ft | Sand 358, Clay 167, Rock 178, Tan Clay 83, Shale 51, Sand & Rock 54 |
| 300–500 ft | Sand 133, Clay 94, Shale 44, Rock 34, Sand & Rock 15, Sand & Rocks 16 |
| 500–1000 ft | Sand 46, Clay 44, Shale 18, Sand & Rocks 10, Hard Shale 10, Shale & Clay 5 |
| 1000–5000 ft | Sand 2, Hard Shale 1, Clay 2, Tight Shale 1, Shale 1, Hard Clay 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 Colorado County
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 2,800 | 70.9% | 165 |
| Stock | 323 | 8.2% | 155 |
| Rig Supply | 218 | 5.5% | 220 |
| Irrigation | 217 | 5.5% | 310 |
| Monitor | 144 | 3.6% | 30 |
| Industrial | 100 | 2.5% | 230 |
| Other | 51 | 1.3% | 187 |
| Public Supply | 44 | 1.1% | 330 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 1,250 | 164 | 66 |
| 2010s | 1,469 | 170 | 66 |
| 2020s | 1,232 | 165 | 65 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 165278 | 2008 | 2,098 | 78 | — | Domestic |
| 531355 | 2019 | 1,190 | 37 | 120 | Stock |
| 64860 | 2005 | 1,183 | 106 | — | Domestic |
| 726771 | 2026 | 1,140 | 80 | — | Irrigation |
| 708699 | 2025 | 1,115 | — | — | Closed-Loop Geothermal |
| 594213 | 2021 | 1,090 | 120 | 140 | Irrigation |
| 333067 | 2005 | 1,050 | 210 | 205 | Public Supply |
| 313460 | 2013 | 1,035 | 17 | — | Irrigation |
| 604929 | 2022 | 1,030 | 123 | 150 | Irrigation |
| 191940 | 2007 | 1,030 | 51 | 413 | 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 Colorado 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.