# Water wells in Karnes County, Texas — how deep, and through what

> 2,671 well reports filed in Karnes County since 2001. Median depth 280 ft, water struck at 100 ft, median yield 50 gpm.

## Water wells in Karnes County, Texas

**2,671** well reports on file. The median well here was taken to **280 ft** and struck water at **100 ft** — against 180 ft and 80 ft across Texas.

### What you will drill through in Karnes County

*Logged in Karnes County, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Clay** 594 , **Sand** 357 , **Surface** 281 , **Caliche** 241 , **Sandy Loam** 234 , **Top Soil** 197 |
| 25–50 ft | **Clay** 208 , **Sand** 123 , **Shale** 50 , **Clay & Shale** 28 , **Gray Clay** 20 , **Rock** 16 |
| 50–100 ft | **Clay** 305 , **Sand** 271 , **Shale** 94 , **Rock** 47 , **Clay & Shale** 42 , **Sandstone** 29 |
| 100–200 ft | **Sand** 529 , **Clay** 446 , **Shale** 176 , **Rock** 91 , **Clay & Shale** 98 , **Blue Clay** 28 |
| 200–300 ft | **Sand** 420 , **Clay** 324 , **Shale** 155 , **Rock** 80 , **Clay & Shale** 49 , **Layered Sand & Shale** 33 |
| 300–500 ft | **Sand** 331 , **Clay** 238 , **Shale** 152 , **Rock** 58 , **Clay & Shale** 43 , **Layered Sand & Shale** 42 |
| 500–1000 ft | **Sand** 109 , **Clay** 93 , **Shale** 73 , **Rock** 14 , **Layered Sand & Shale** 21 , **Sand & Shale** 16 |
| 1000–5000 ft | **Shale** 32 , **Sand** 43 , **Sandy Shale** 20 , **Clay** 12 , **Carrizo Sand** 9 , **Gray Shale** 5 |

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 Karnes County

*Licensed firms in Karnes County, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [M&C WATERWELL DRILLING](/driller/m-c-waterwell-drilling.md) | 428 | 310 | 40 | 2002–2017 |
| [Vortex Drilling, Inc.](/driller/vortex-drilling-inc.md) | 422 | 15 | — | 2002–2024 |
| [Friedel Drilling Company](/driller/friedel-drilling-company.md) | 204 | 323 | 70 | 2003–2026 |
| [Thomas Moy and Sons](/driller/thomas-moy-and-sons.md) | 135 | 480 | 35 | 2003–2023 |
| [CHANDLER DRILLING INC](/driller/chandler-drilling-inc.md) | 133 | 232 | 75 | 2003–2026 |
| [Thomas Moy and Sons Water Well Drilling Inc.](/driller/thomas-moy-and-sons-water-well-drilling-inc.md) | 122 | 460 | 60 | 2010–2026 |
| [Borth Water Well](/driller/borth-water-well.md) | 70 | 225 | 25 | 2003–2022 |
| [J&S WATER WELLS](/driller/j-s-water-wells.md) | 68 | 545 | 120 | 2009–2024 |
| [Rangnow Water Well Service](/driller/rangnow-water-well-service.md) | 55 | 245 | 35 | 2005–2026 |
| [Vortex Drilling Partners, LP](/driller/vortex-drilling-partners-lp.md) | 47 | 15 | — | 2019–2023 |
| [Envirotech Drilling Services LLC](/driller/envirotech-drilling-services-llc.md) | 45 | 5 | — | 2024–2026 |
| [JANYSEK WATER WELL SERVICE](/driller/janysek-water-well-service.md) | 45 | 440 | 30 | 2021–2024 |
| [J B Drilling](/driller/j-b-drilling.md) | 44 | 398 | 45 | 2006–2016 |
| [Pinnergy, LTD](/driller/pinnergy-ltd.md) | 42 | 480 | 55 | 2011–2015 |
| [J&S Water Wells - Tomas Salinas](/driller/j-s-water-wells-tomas-salinas.md) | 37 | 810 | 120 | 2011–2014 |
| [Evans Drilling](/driller/evans-drilling.md) | 31 | 640 | 250 | 2009–2012 |
| [Deharde Water Well Service](/driller/deharde-water-well-service.md) | 30 | 325 | 60 | 2005–2024 |
| [H2O Well Service, LLC](/driller/h2o-well-service-llc.md) | 29 | 260 | 65 | 2022–2026 |
| [WEST Drilling](/driller/west-drilling.md) | 26 | 60 | — | 2016–2018 |
| [Bull's Eye Services, LLC](/driller/bull-s-eye-services-llc.md) | 24 | 2,822 | 420 | 2013–2024 |
| [Water Well Services, Inc.](/driller/water-well-services-inc.md) | 24 | 4,000 | 1,000 | 2010–2018 |
| [Thomas Moy and Son's](/driller/thomas-moy-and-son-s.md) | 23 | 555 | 50 | 2003–2025 |
| [CARTER WATER WELL DRILLING](/driller/carter-water-well-drilling.md) | 23 | 340 | 40 | 2003–2024 |
| [Alamo1 Drilling](/driller/alamo1-drilling.md) | 22 | 10 | — | 2025–2026 |
| [Moy's Water Well Services](/driller/moy-s-water-well-services.md) | 20 | 372 | 30 | 2017–2023 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 666 | 24.9% | 360 |
| Stock | 629 | 23.5% | 320 |
| Rig Supply | 479 | 17.9% | 420 |
| Environmental Soil Boring | 412 | 15.4% | 10 |
| Monitor | 224 | 8.4% | 35 |
| Industrial | 122 | 4.6% | 640 |
| Fracking Supply | 91 | 3.4% | 1,350 |
| Irrigation | 34 | 1.3% | 504 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 419 | 290 | 90 |
| 2010s | 1,743 | 265 | 100 |
| 2020s | 509 | 300 | 119 |

### The deepest reports on file

*Deepest reports in Karnes County. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 510067 | 2019 | 4,870 | 99 | 800 | Fracking Supply |
| 574590 | 2021 | 4,855 | 200 | 1,100 | Fracking Supply |
| 272062 | 2011 | 4,800 | 75 | — | Fracking Supply |
| 474237 | 2018 | 4,753 | 130 | 1,700 | Rig Supply |
| 387133 | 2014 | 4,711 | 80 | 940 | Fracking Supply |
| 291088 | 2011 | 4,700 | 87 | 300 | Rig Supply |
| 274404 | 2011 | 4,700 | 250 | — | Rig Supply |
| 551394 | 2020 | 4,650 | 139 | 1,900 | Industrial |
| 284962 | 2012 | 4,650 | 120 | 300 | Industrial |
| 280155 | 2012 | 4,648 | 95 | 1,000 | Fracking 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 Karnes 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](/privacy.md).

### Counties with a comparable number of reports

- [Lamb](/county/lamb.md)
- [Bastrop](/county/bastrop.md)
- [Hood](/county/hood.md)
- [Guadalupe](/county/guadalupe.md)
- [Wilson](/county/wilson.md)
- [Hutchinson](/county/hutchinson.md)
- [Carson](/county/carson.md)
- [Hardin](/county/hardin.md)
- [Orange](/county/orange.md)
- [Bowie](/county/bowie.md)
- [Henderson](/county/henderson.md)
- [Atascosa](/county/atascosa.md)
- [Nacogdoches](/county/nacogdoches.md)

A sliding window, not a ranking. [Every county](/county.md).

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Página: https://texas-water-wells.pages.dev/county/karnes/
Fonte: Texas Submitted Driller's Report Database — Texas Water Development Board, from reports filed with the Texas Department of Licensing and Regulation
Recolha: 2026-08-23