⟁ Montana Well Data field records · 2026 survey

Montana Well Data › Cascade County › Great Falls (59405)

Great Falls, MT (59405): well depth, water level & drilling cost

✓ 837 GWIC records · Cascade County

152 ftmedian well depth
21 ft–362 fttypical depth range
95 ftmedian static water level
35 gpmmedian yield (493 tests)

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How deep are wells in and around Great Falls (59405), Montana?

The median drilled well depth in and around Great Falls (59405) is 152 ft, based on 828 wells with recorded depths in the state GWIC database. Half fall between 21 ft and 362 ft; 90% are shallower than 465 ft.

How much does it cost to drill a well in and around Great Falls (59405)?

Applying published per-foot rates to the local median depth of 320 ft: drilling and casing alone typically runs $8,000–$20,800; a complete system including pump, pressure tank, and hookup typically runs $19,200–$32,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Great Falls (59405)?

The median static water level is 95 ft below ground surface (middle half of wells: 20 ft–164 ft), from 645 measurements.

Drilled depth distribution

0–50 ft 313 50–100 ft 42 100–150 ft 54 150–200 ft 46 200–300 ft 76 300–400 ft 114 400–600 ft 170 600+ ft 13
Looking at a specific property in Great Falls (59405)?

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Get quotes from drillers who work in Great Falls (59405)

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Part of Cascade County well records.

Method: medians computed from GWIC records (site type WELL, non-abandoned; 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.