Texas Water Well Reports › Comal County › San Antonio (78266)
San Antonio, TX (78266): well depth, water level & drilling cost
✓ 123 TDLR SDR records · Comal County
How deep are wells in San Antonio (78266), Texas?
The median drilled well depth in San Antonio (78266) is 550 ft, based on 123 wells with recorded depths in the state TDLR SDR database. Half fall between 405 ft and 700 ft; 90% are shallower than 1,199 ft.
How much does it cost to drill a well in San Antonio (78266)?
Applying published per-foot rates to the local median depth of 510 ft: drilling and casing alone typically runs $12,750–$33,150; a complete system including pump, pressure tank, and hookup typically runs $30,600–$51,000. Actual quotes depend on site access, geology, and casing requirements.
Free for property owners. We route your request only to licensed drillers who actually file well logs in Comal County — never sold elsewhere.
What is the static water level in San Antonio (78266)?
The median static water level is 251 ft below ground surface (middle half of wells: 183 ft–319 ft), from 112 measurements.
Pull every recorded well near a San Antonio (78266) address — $29
Drilled depth distribution
See every recorded well near any address — depths, water levels, yields, original driller's logs — in a one-time report.
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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), grouped by ZIP from the recorded address. Cost estimate applies published per-foot ranges to the local median depth — full methodology & sources.