Texas Water Well Reports › Collin County
Collin County, Texas: well depth, water level & drilling cost
✓ 691 TDLR SDR records · verified 2026-06-27
How deep are wells in Collin County, Texas?
The median drilled well depth in Collin County is 910 ft, based on 688 wells with recorded depths in the state TDLR SDR database. Half of all wells fall between 719 ft and 1,181 ft; 90% are shallower than 1,600 ft. Wells drilled since 2016 have a median depth of 1,040 ft.
How much does it cost to drill a well in Collin County?
Applying published per-foot rates to the local median depth of 1,040 ft: drilling and casing alone typically runs $26,000–$67,600; a complete system including pump, pressure tank, and hookup typically runs $62,400–$104,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Collin County?
The median static water level is 470 ft below ground surface (middle half of wells: 380 ft–545 ft), from 532 measurements.
How much water do wells in Collin County produce?
The median tested yield is 25 gpm (middle half: 17 gpm–32 gpm), from 598 pump tests. A typical household needs 5–10 gpm.
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Drilled depth distribution
Who drills wells in Collin County?
Companies by number of water wells completed in this county since 2016, per filed driller reports (SDR).
| Driller | Wells since 2016 |
|---|---|
| Double D Drilling | 53 |
| Barco Well Service, LP | 42 |
| THI WATER WELL | 16 |
| Earth Tech | 12 |
| Action Water Wells Trust | 9 |
| M5 Drilling | 4 |
| Davis Water Well, LLC | 4 |
| C. Miller Drilling | 4 |
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Median depth, water level, and yield for each ZIP code with recorded wells.
- Prosper (75078) — 190 wells, median 875 ft
- Celina (75009) — 183 wells, median 820 ft
- Mckinney (75071) — 52 wells, median 1,030 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.