⟁ 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

✓ 1,074 TDLR SDR records · Gillespie County

265 ftmedian well depth
205 ft–320 fttypical depth range
159 ftmedian static water level
11 gpmmedian yield (958 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 1,073 wells with recorded depths in the state TDLR SDR database. Half fall between 205 ft and 320 ft; 90% are shallower than 449 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 988 measurements.

Drilled depth distribution

0–50 ft 2 50–100 ft 19 100–150 ft 65 150–200 ft 128 200–300 ft 454 300–400 ft 264 400–600 ft 80 600+ ft 61
Looking at a specific property in Harper (78631)?

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

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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.