Water wells in Travis County, Texas
12,384 well reports on file. The median well here was taken to 38 ft and struck water at 140 ft — against 180 ft and 80 ft across Texas.
What you will drill through in Travis County
| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | Topsoil 1,445, Top Soil 1,036, Caliche 933, Tan Limestone 883, Gray Limestone 649, Asphalt 544 |
| 25–50 ft | Gray Limestone 431, Grey Limestone 187, Tan Limestone 129, Gray Tan Ls 105, Blue Lime 101, Blue Limestone 89 |
| 50–100 ft | Gray Limestone 407, Grey Limestone 205, Gray Clay 152, Tan Limestone 139, Blue Clay 103, Brown Limestone 99 |
| 100–200 ft | Gray Limestone 429, Gravel 233, Tan Limestone 203, Red Clay 176, Red Sandstone 156, Grey Limestone 167 |
| 200–300 ft | Gray Limestone 311, Tan Limestone 195, Tan Clay 173, Brown Limestone 148, Gray Clay 129, Gravel 103 |
| 300–500 ft | Gray Limestone 416, Tan Limestone 330, Brown Limestone 172, Red Sandstone 148, Gravel 112, Grey Limestone 133 |
| 500–1000 ft | Red Sandstone 297, Gray Limestone 309, Gray Clay 178, Tan Limestone 139, Brown Limestone 104, Gray Sandstone 105 |
| 1000–5000 ft | Lower Glen Rose 1, Hensell 1, Cow Creek/ Middle Trinity 1, Hammett 1, Gray Limestone 1, Tan/Gray Limestone 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 Travis County
What the wells are for
| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Environmental Soil Boring | 3,734 | 30.2% | 10 |
| Monitor | 3,667 | 29.6% | 30 |
| Domestic | 3,122 | 25.2% | 425 |
| Irrigation | 1,107 | 8.9% | 525 |
| Closed-Loop Geothermal | 203 | 1.6% | 300 |
| Test Well | 181 | 1.5% | 60 |
| Other | 149 | 1.2% | 30 |
| Public Supply | 108 | 0.9% | 310 |
| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 1960s | 1 | — | — |
| 1990s | 7 | 510 | 283 |
| 2000s | 3,996 | 40 | 130 |
| 2010s | 5,586 | 45 | 156 |
| 2020s | 2,794 | 30 | 90 |
The deepest reports on file
| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 400716 | 2015 | 1,530 | 60 | 300 | Irrigation |
| 669868 | 2024 | 1,500 | 104 | 600 | Public Supply |
| 135961 | 2007 | 1,210 | — | — | Monitor |
| 266471 | 2011 | 1,200 | — | — | Irrigation |
| 431923 | 2016 | 1,100 | — | — | Monitor |
| 693750 | 2025 | 1,066 | — | — | Closed-Loop Geothermal |
| 539113 | 2020 | 1,060 | 53 | — | Irrigation |
| 480313 | 2018 | 1,060 | 350 | 50 | Irrigation |
| 545815 | 2020 | 1,030 | 425 | 10 | Irrigation |
| 543079 | 1998 | 1,030 | 283 | — | Irrigation |
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 Travis 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.