Texas Water Well Reports › Frio County
Frio County, Texas: well depth, water level & drilling cost
✓ 943 TDLR SDR records · verified 2026-06-27
How deep are wells in Frio County, Texas?
The median drilled well depth in Frio County is 420 ft, based on 942 wells with recorded depths in the state TDLR SDR database. Half of all wells fall between 300 ft and 705 ft; 90% are shallower than 1,650 ft. Wells drilled since 2016 have a median depth of 440 ft.
How much does it cost to drill a well in Frio 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 Frio County?
The median static water level is 207 ft below ground surface (middle half of wells: 120 ft–297 ft), from 880 measurements.
How much water do wells in Frio County produce?
The median tested yield is 30 gpm (middle half: 15 gpm–100 gpm), from 828 pump tests. A typical household needs 5–10 gpm.
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Drilled depth distribution
Who drills wells in Frio County?
Companies by number of water wells completed in this county since 2016, per filed driller reports (SDR).
| Driller | Wells since 2016 |
|---|---|
| Underground Water Resources, LLC | 91 |
| SHEPHERD DRILLING | 86 |
| McKinley Drilling | 81 |
| Thomas Moy and Sons Water Well Drilling Inc. | 25 |
| Bull's Eye Services, LLC | 22 |
| Well Done Water Works, LLC | 18 |
| Unison Drilling Inc | 15 |
| Moy's Water Well Drilling & Services of Texas | 14 |
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Median depth, water level, and yield for each ZIP code with recorded wells.
- Pearsall (78061) — 269 wells, median 430 ft
- Moore (78057) — 177 wells, median 420 ft
- Dilley (78017) — 106 wells, median 400 ft
- Bigfoot (78005) — 97 wells, median 480 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.