Texas Water Well Reports › Galveston County
Galveston County, Texas: well depth, water level & drilling cost
✓ 2,852 TDLR SDR records · verified 2026-09-22
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How deep are wells in Galveston County, Texas?
The median drilled well depth in Galveston County is 420 ft, based on 2,852 wells with recorded depths in the state TDLR SDR database. Half of all wells fall between 150 ft and 560 ft; 90% are shallower than 700 ft. Wells drilled since 2016 have a median depth of 425 ft.
How much does it cost to drill a well in Galveston County?
Applying published per-foot rates to the local median depth of 425 ft: drilling and casing alone typically runs $10,625–$27,625; a complete system including pump, pressure tank, and hookup typically runs $25,500–$42,500. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Galveston County?
The median static water level is 80 ft below ground surface (middle half of wells: 40 ft–97 ft), from 2,746 measurements.
How much water do wells in Galveston County produce?
The median tested yield is 60 gpm (middle half: 30 gpm–80 gpm), from 2,555 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Galveston County?
Companies by number of water wells completed in this county since 2016, per filed driller reports (SDR).
| Driller | Wells since 2016 |
|---|---|
| GWR Windmills & Water Well Services, LLC | 351 |
| Environmental Service | 290 |
| MEZA WATER WELL SERVICE | 105 |
| ALMEDA WATER WELL SERVICE | 102 |
| Davison Water Well Service | 96 |
| O'Day Drilling Company Inc | 41 |
| GWR Windmill & Water Well Serices, LLC | 21 |
| Felder Water Well & Pump Service, LLC | 15 |
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Well records by ZIP code in Galveston County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Santa Fe (77510) — 1,448 wells, median 413 ft
- 77517 — 575 wells, median 416 ft
- Dickinson (77539) — 296 wells, median 440 ft
- Hitchcock (77563) — 89 wells, median 505 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.