Texas Water Well Reports › Castro County
Castro County, Texas: well depth, water level & drilling cost
✓ 1,802 TDLR SDR records · verified 2026-09-22
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How deep are wells in Castro County, Texas?
The median drilled well depth in Castro County is 387 ft, based on 1,802 wells with recorded depths in the state TDLR SDR database. Half of all wells fall between 360 ft and 411 ft; 90% are shallower than 435 ft. Wells drilled since 2016 have a median depth of 395 ft.
How much does it cost to drill a well in Castro County?
Applying published per-foot rates to the local median depth of 395 ft: drilling and casing alone typically runs $9,875–$25,675; a complete system including pump, pressure tank, and hookup typically runs $23,700–$39,500. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Castro County?
The median static water level is 311 ft below ground surface (middle half of wells: 252 ft–349 ft), from 467 measurements.
How much water do wells in Castro County produce?
The median tested yield is 18 gpm (middle half: 12 gpm–150 gpm), from 74 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Castro County?
Companies by number of water wells completed in this county since 2016, per filed driller reports (SDR).
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Well records by ZIP code in Castro County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Dimmitt (79027) — 634 wells, median 400 ft
- Hart (79043) — 496 wells, median 381 ft
- Summerfield (79085) — 169 wells, median 366 ft
- Nazareth (79063) — 119 wells, median 340 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.