How deep are water wells in Pecos County, Texas?
Half of the home water wells drilled in Pecos County in the last 10 years are between 188 and 341 feet deep. The median is 261 feet, based on 92 driller reports filed with the state. Drillers measured the water standing a median 78 feet below the surface (68 wells). That is close to the Texas median of 250 feet.
Updated every day from Texas Water Development Board driller reports. Last update: November 10, 2026, using the state file of November 9, 2026. These are depths of real wells drilled nearby, not a promise about any property. Groundwater can change over short distances and with drought. A licensed water well driller can tell you what to expect on a specific tract.
Key figures
- Typical depth (middle half)
- 188 to 341 ft
- Median depth
- 261 feet
- Deepest 10% are past
- 559 feet
- Water level (median)
- 78 feet (68 wells)
- Yield (median)
- 50 gallons per minute (5% pump-tested)
- Wells used
- 92
- Period
- Last 10 years
- Latest report
- September 21, 2026
- Depth rank
- 125 of 245 (1 = deepest)
- Confidence
- Standard
How deep the wells are
Number of home wells by depth, last 10 years (or since 2001 where wells are few).
| Depth (ft) | Wells |
|---|---|
| 0 to 50 | 1 |
| 100 to 150 | 10 |
| 150 to 200 | 19 |
| 200 to 250 | 12 |
| 250 to 300 | 14 |
| 300 to 350 | 14 |
| 350 to 400 | 6 |
| 400 to 450 | 2 |
| 450 to 500 | 2 |
| 550 to 600 | 4 |
| 600 to 650 | 1 |
| 650 to 700 | 2 |
| 700 to 750 | 1 |
| 800 to 850 | 1 |
| 850 to 900 | 1 |
| 1,000 to 1,250 | 2 |
Median depth by year
Median depth of home wells finished each year. Years with fewer than 10 wells are not shown.
| Year | Median (ft) | Wells |
|---|---|---|
| 2017 | 280 | 13 |
| 2019 | 220 | 13 |
| 2020 | 257 | 15 |
| 2023 | 290 | 10 |
| 2024 | 292 | 10 |
Are wells in Pecos County getting deeper?
Pecos County does not have enough domestic wells in both 2003 to 2007 and 2021 to 2025 (at least 30 in each) to compare. Read the 20-year study.
Aquifers under the county
The Texas Water Development Board maps the Edwards-Trinity (Plateau), a major aquifer, at the surface (outcrop) across 72% of the county and below other rock (subsurface) across 14% of the county; the Pecos Valley, a major aquifer, at the surface (outcrop) across 22% of the county; the Rustler, a minor aquifer, under 24% of the county; the Dockum, a minor aquifer, under 12% of the county; the Capitan Reef Complex, a minor aquifer, under 12% of the county.
What a well costs in Pecos County
At the median depth for Pecos County (261 feet), a complete home well (drilling, casing, pump, pressure tank and hookup at the well) would cost roughly $9,000 to $22,000, by TerraFunded's estimate from published Texas prices. Trenching and the line to the house are extra. Get quotes from at least two licensed drillers.
Neighboring counties
- Brewster County: median 363 ft
- Crane County: median 240 ft
- Crockett County: median 410 ft
- Jeff Davis County: median 380 ft
- Reeves County: median 260 ft
- Terrell County: median 716 ft
- Ward County: median 135 ft
Common questions
How deep do I need to drill a well in Pecos County?
The middle half of home wells drilled there are 188 to 341 feet deep; one in ten goes past 559 feet. The depth a given tract needs depends on where it is and what layers the driller hits.
How much does a water well cost in Pecos County?
At the median depth (261 feet), a complete well would cost roughly $9,000 to $22,000 by TerraFunded's estimate from published Texas driller prices ($25 to $60 per foot plus pump and equipment). The real price comes from a driller's quote.
How much water does a well produce in Pecos County?
Drillers reported a median of 50 gallons per minute (40 wells). Only 5% of those figures come from a pump test; the rest are the driller's estimate, so treat them as a guide.
Are wells in Pecos County getting deeper?
Pecos County does not have enough domestic wells in both 2003 to 2007 and 2021 to 2025 (at least 30 in each) to compare.
How do I see the well report for a property or a neighbor's well?
Every well drilled in Texas since 2001 has a public driller's report. On this page's map, tap a well to open its official report on the state's site, or look it up by location in the TWDB viewer.
How to read these numbers
Figures cover new and replacement domestic (home) wells, from the reports licensed drillers file with the state. Read the full methodology. Download the county table (CSV).
How to cite: TerraFunded Texas Well Atlas, from Texas Water Development Board driller reports (data as of November 9, 2026). https://terrafunded.com/wells
Sources
- Texas Water Development Board, Submitted Driller's Reports database (file of 2026-11-10)
- U.S. Census Bureau, 2024 cartographic boundary file, counties (1:500,000) (file of 2025-04-10)
- Texas Water Development Board, major aquifers (updated December 2006) (file of 2007-01-03)
- Texas Water Development Board, minor aquifers (updated December 2017) (file of 2017-12-15)
- TWDB well report viewer