Texas Water Well Reports › Guadalupe County
Guadalupe County, Texas: well depth, water level & drilling cost
✓ 1,956 TDLR SDR records · verified 2026-11-09
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How deep are wells in Guadalupe County, Texas?
The median drilled well depth in Guadalupe County is 262 ft, based on 1,955 wells with recorded depths in the state TDLR SDR database. Half of all wells fall between 120 ft and 340 ft; 90% are shallower than 404 ft. Wells drilled since 2016 have a median depth of 260 ft.
How much does it cost to drill a well in Guadalupe County?
Applying published per-foot rates to the local median depth of 260 ft: drilling and casing alone typically runs $6,500–$16,900; a complete system including pump, pressure tank, and hookup typically runs $15,600–$26,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Guadalupe County?
The median static water level is 70 ft below ground surface (middle half of wells: 33 ft–108 ft), from 1,858 measurements.
How much water do wells in Guadalupe County produce?
The median tested yield is 30 gpm (middle half: 20 gpm–50 gpm), from 1,857 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Guadalupe County?
Companies by number of water wells completed in this county since 2016, per filed driller reports (SDR).
| Driller | Wells since 2016 |
|---|---|
| Deharde Water Well Service | 427 |
| HERBOLD DRILLING | 279 |
| STEVENS DRILLING & WATER WELL SERVICE | 33 |
| Evans Drilling | 16 |
| Drillink, Inc. | 15 |
| Friedel Drilling Company | 14 |
| Hazelett Drilling | 14 |
| Kutscher Drilling | 13 |
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Well records by ZIP code in Guadalupe County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Seguin (78155) — 1,055 wells, median 280 ft
- Kingsbury (78638) — 294 wells, median 280 ft
- Jbsa Randolph (78150) — 153 wells, median 340 ft
- Mcqueeney (78123) — 82 wells, median 50 ft
- Geronimo (78115) — 63 wells, median 260 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.