Texas Water Well Reports › Gillespie County
Gillespie County, Texas: well depth, water level & drilling cost
✓ 4,959 TDLR SDR records · verified 2026-09-22
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How deep are wells in Gillespie County, Texas?
The median drilled well depth in Gillespie County is 235 ft, based on 4,957 wells with recorded depths in the state TDLR SDR database. Half of all wells fall between 164 ft and 340 ft; 90% are shallower than 499 ft. Wells drilled since 2016 have a median depth of 240 ft.
How much does it cost to drill a well in Gillespie County?
Applying published per-foot rates to the local median depth of 240 ft: drilling and casing alone typically runs $6,000–$15,600; a complete system including pump, pressure tank, and hookup typically runs $14,400–$24,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Gillespie County?
The median static water level is 104 ft below ground surface (middle half of wells: 60 ft–180 ft), from 4,217 measurements.
How much water do wells in Gillespie County produce?
The median tested yield is 20 gpm (middle half: 12 gpm–35 gpm), from 4,421 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Gillespie County?
Companies by number of water wells completed in this county since 2016, per filed driller reports (SDR).
| Driller | Wells since 2016 |
|---|---|
| L & L Drilling Co. | 535 |
| PICKENS DRILLING CO. | 268 |
| Texan Water | 258 |
| Virdell Drilling Inc. | 235 |
| Walden Drilling Inc | 220 |
| Magill Drilling & Water Well Service, LLC | 142 |
| MAP Water Well Drilling LLC | 84 |
| Bee Cave Drilling, Inc. | 78 |
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Well records by ZIP code in Gillespie County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Fredericksburg (78624) — 3,344 wells, median 232 ft
- Harper (78631) — 1,074 wells, median 265 ft
- Willow City (78675) — 467 wells, median 180 ft
- Stonewall (78671) — 354 wells, median 310 ft
- Doss (78618) — 337 wells, median 220 ft
Method: medians computed from TDLR SDR records (water-supply wells only (domestic, irrigation, stock, public supply, industrial) — monitoring, environmental borings, test holes, injection and geothermal excluded; depths 0–5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.