Texas Water Well Reports › Starr County
Starr County, Texas: well depth, water level & drilling cost
✓ 668 TDLR SDR records · verified 2026-06-27
How deep are wells in Starr County, Texas?
The median drilled well depth in Starr County is 440 ft, based on 668 wells with recorded depths in the state TDLR SDR database. Half of all wells fall between 360 ft and 520 ft; 90% are shallower than 623 ft. Wells drilled since 2016 have a median depth of 440 ft.
How much does it cost to drill a well in Starr County?
Applying published per-foot rates to the local median depth of 440 ft: drilling and casing alone typically runs $11,000–$28,600; a complete system including pump, pressure tank, and hookup typically runs $26,400–$44,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Starr County?
The median static water level is 120 ft below ground surface (middle half of wells: 70 ft–183 ft), from 639 measurements.
How much water do wells in Starr County produce?
The median tested yield is 25 gpm (middle half: 15 gpm–35 gpm), from 632 pump tests. A typical household needs 5–10 gpm.
Pull every recorded well near a Starr County address — $19
Drilled depth distribution
Who drills wells in Starr County?
Companies by number of water wells completed in this county since 2016, per filed driller reports (SDR).
| Driller | Wells since 2016 |
|---|---|
| MARAL DRILLING | 131 |
| Killinger's Water Well Drilling | 90 |
| R. MOLINA WATER WELL SERVICE, INC. | 14 |
| T Molina Water Well LLC | 12 |
| Mike-N-Sons All-Terrain Well & Pump Service | 9 |
| Bell Water Well Service | 6 |
| Cinco E Inc. | 6 |
| sotex water well serv | 4 |
Get quotes from local drillers
See every recorded well near any address — depths, water levels, yields, original driller's logs — in a one-time report.
Free lookup Property report — $19Well records by ZIP code in Starr County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Rio Grande City (78582) — 135 wells, median 440 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.