Texas Water Well Reports › Collin County
Collin County, Texas: well depth, water level & drilling cost
✓ 704 TDLR SDR records · verified 2026-10-19
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How deep are wells in Collin County, Texas?
The median drilled well depth in Collin County is 920 ft, based on 701 wells with recorded depths in the state TDLR SDR database. Half of all wells fall between 730 ft and 1,200 ft; 90% are shallower than 1,600 ft. Wells drilled since 2016 have a median depth of 1,070 ft.
How much does it cost to drill a well in Collin County?
Applying published per-foot rates to the local median depth of 1,070 ft: drilling and casing alone typically runs $26,750–$69,550; a complete system including pump, pressure tank, and hookup typically runs $64,200–$107,000. 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–550 ft), from 541 measurements.
How much water do wells in Collin County produce?
The median tested yield is 24 gpm (middle half: 17 gpm–32 gpm), from 608 pump tests. A typical household needs 5–10 gpm.
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 | 58 |
| Barco Well Service, LP | 42 |
| THI WATER WELL | 17 |
| Action Water Wells Trust | 12 |
| Earth Tech | 12 |
| M5 Drilling | 5 |
| thi water well | 4 |
| Erwin Water Well Drilling | 4 |
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Well records by ZIP code in Collin County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Prosper (75078) — 199 wells, median 875 ft
- Celina (75009) — 190 wells, median 840 ft
- Frisco (75034) — 80 wells, median 747 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.