⟁ Texas Water Well Reports field records · 2026 survey

Texas Water Well Reports › Gillespie County › Harper (78631)

Harper, TX (78631): well depth, water level & drilling cost

✓ 1,081 TDLR SDR records · Gillespie County

265 ftmedian well depth
205 ft–322 fttypical depth range
159 ftmedian static water level
11 gpmmedian yield (964 tests)

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How deep are wells in Harper (78631), Texas?

The median drilled well depth in Harper (78631) is 265 ft, based on 1,080 wells with recorded depths in the state TDLR SDR database. Half fall between 205 ft and 322 ft; 90% are shallower than 447 ft.

How much does it cost to drill a well in Harper (78631)?

Applying published per-foot rates to the local median depth of 280 ft: drilling and casing alone typically runs $7,000–$18,200; a complete system including pump, pressure tank, and hookup typically runs $16,800–$28,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in Harper (78631)?

The median static water level is 159 ft below ground surface (middle half of wells: 100 ft–215 ft), from 994 measurements.

Drilled depth distribution

0–50 ft 2 50–100 ft 19 100–150 ft 65 150–200 ft 129 200–300 ft 455 300–400 ft 268 400–600 ft 81 600+ ft 61
Looking at a specific property in Harper (78631)?

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Get quotes from drillers who work in Harper (78631)

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Part of Gillespie 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.