⟁ Texas Water Well Reports field records · 2026 survey

Texas Water Well Reports › Comal County › San Antonio (78266)

San Antonio, TX (78266): well depth, water level & drilling cost

✓ 122 TDLR SDR records · Comal County

568 ftmedian well depth
410 ft–700 fttypical depth range
256 ftmedian static water level
15 gpmmedian yield (105 tests)

How deep are wells in San Antonio (78266), Texas?

The median drilled well depth in San Antonio (78266) is 568 ft, based on 122 wells with recorded depths in the state TDLR SDR database. Half fall between 410 ft and 700 ft; 90% are shallower than 1,200 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 520 ft: drilling and casing alone typically runs $13,000–$33,800; a complete system including pump, pressure tank, and hookup typically runs $31,200–$52,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in San Antonio (78266)?

The median static water level is 256 ft below ground surface (middle half of wells: 187 ft–319 ft), from 111 measurements.

Pull every recorded well near a San Antonio (78266) address — $19

Drilled depth distribution

0–50 ft 0 50–100 ft 0 100–150 ft 0 150–200 ft 0 200–300 ft 9 300–400 ft 20 400–600 ft 35 600+ ft 58
Looking at a specific property in San Antonio (78266)?

See every recorded well near any address — depths, water levels, yields, original driller's logs — in a one-time report.

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Part of Comal County well records.

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.