Water wells in the Guadalupe County Groundwater Conservation District
Home water wells inside the Guadalupe County Groundwater Conservation District (Guadalupe County, Texas) are typically 208 to 346 feet deep (median 291 ft, 605 wells drilled in the last 10 years). Over the last three full years drillers reported about 64 new home wells a year; the peak was 88 in 2021. Estimated cost of a complete well at the median depth: $10,000 to $24,000.
Updated every day from Texas Water Development Board driller reports. Last update: November 11, 2026, using the state file of November 10, 2026.
Under the center of the Guadalupe County GCD
District boundary from TWDB's file current as of November 2019. Later changes are not shown.
Digging in…
Home wells in and around the Guadalupe County GCD
Each dot is a home well from a state driller report, colored by depth. Tap one for its details and official report. Tap an empty spot to see what is under that point.
Well depth (ft)
- <100
- 100
- 200
- 300
- 400
- 600
- 800+
Dark line: the district boundary (TWDB, 2019)
Green: aquifer mapped by the state
Key figures
- Typical depth (middle half)
- 208 to 346 feet
- Median depth
- 291 feet
- Deepest 10% are past
- 407 feet
- Water level (median)
- 80 feet
- 574 wells
- Yield (median)
- 30 gpm
- 577 wells, gallons per minute
- Wells used
- 605
- In the last 10 years
- Counties
- 1
- All years on file
- 1,394
- median 300 ft, since 2002
- Confidence
- Standard (30 or more wells)
When the wells were finished, the water stood a median 80 feet below the surface (574 wells), well above the bottom: the typical well holds about 211 feet of water.
New home wells per year
Over the last three full years drillers reported about 64 new home wells a year; the peak was 88 in 2021.
Show the data table
| Year | Wells |
|---|---|
| 2002 | 29 |
| 2003 | 55 |
| 2004 | 57 |
| 2005 | 79 |
| 2006 | 66 |
| 2007 | 64 |
| 2008 | 77 |
| 2009 | 62 |
| 2010 | 28 |
| 2011 | 40 |
| 2012 | 42 |
| 2013 | 51 |
| 2014 | 47 |
| 2015 | 55 |
| 2016 | 40 |
| 2017 | 40 |
| 2018 | 51 |
| 2019 | 45 |
| 2020 | 67 |
| 2021 | 88 |
| 2022 | 83 |
| 2023 | 65 |
| 2024 | 65 |
| 2025 | 61 |
| 2026 | 37 |
Places with the most wells in the district
| Place | Median depth (ft) | Middle half (ft) | Wells | Main layer |
|---|---|---|---|---|
| Seguin | 62 | 46–240 | 245 | — |
| Kingsbury | 269 | 220–340 | 113 | — |
| New Berlin | 218 | 160–265 | 92 | — |
Counties
Depth over time
Home well depth in the district has not changed meaningfully in 20 years: the median was 295 feet in 2003 to 2007 and 300 feet in 2021 to 2025 (a difference under 10% or within the margin of error).
| Period | Median depth (ft) | Wells |
|---|---|---|
| 2001–2005 | 290 | 220 |
| 2006–2010 | 282 | 297 |
| 2011–2015 | 305 | 235 |
| 2016–2020 | 290 | 243 |
| 2021–2025 | 300 | 362 |
| 2026 | 282 | 37 |
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Common questions
How deep are wells in the Guadalupe County GCD?
Home water wells inside the Guadalupe County Groundwater Conservation District (Guadalupe County, Texas) are typically 208 to 346 feet deep (median 291 ft, 605 wells drilled in the last 10 years).
What does a groundwater conservation district do?
In Texas, districts are the local authority over groundwater: they can require registration or permits for new wells, set spacing from other wells and property lines, and limit pumping. Each district writes its own rules, so ask the Guadalupe County Groundwater Conservation District before drilling inside it.
What a well costs here
At the median depth for the district (291 feet), a complete home well would cost roughly $10,000 to $24,000: $25 to $60 per foot for drilling, casing and seal, plus $2,500 to $6,500 for the pump, pressure tank, controls and hookup at the well. Across the whole middle half of depths (208 to 346 feet) the range runs from $7,500 to $27,500. This is TerraFunded's estimate from published Texas prices, not a quote, and it leaves out trenching and the line to the house. Get prices from at least two licensed drillers.
How these numbers are made
We count new and replacement domestic (home) wells whose coordinates fall inside the district boundary. We use the last 10 years when there are at least 30 wells; otherwise all since 2001. The median is the middle well and the middle half runs from the 25th to the 75th percentile.
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.
Read the full methodology · Download the data (CSV, CC BY 4.0)
How to cite
TerraFunded (2026). Texas Well Atlas: Underground. From Texas Water Development Board driller reports and groundwater availability models (data as of November 10, 2026). https://terrafunded.com/wells/districts/guadalupe-county-groundwater-conservation-district. License CC BY 4.0. https://doi.org/10.5281/zenodo.24126380.
Sources
- Submitted Driller's Reports database, Texas Water Development Board (TWDB) (file of November 10, 2026)
- Groundwater conservation district boundaries, TWDB (current as of November 2019)
- Ground elevation: Terrain Tiles (Mapzen), Registry of Open Data on AWS
- TWDB well report viewer (each well's official report)