Montana Well Data › Cascade County
Cascade County, Montana: well depth, water level & drilling cost
✓ 7,186 GWIC records · verified 2026-10-02
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How deep are wells in Cascade County, Montana?
The median drilled well depth in Cascade County is 111 ft, based on 7,041 wells with recorded depths in the state GWIC database. Half of all wells fall between 38 ft and 245 ft; 90% are shallower than 460 ft. Wells drilled since 2016 have a median depth of 190 ft.
How much does it cost to drill a well in Cascade County?
Applying published per-foot rates to the local median depth of 190 ft: drilling and casing alone typically runs $4,750–$12,350; a complete system including pump, pressure tank, and hookup typically runs $11,400–$19,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Cascade County?
The median static water level is 35 ft below ground surface (middle half of wells: 15 ft–102 ft), from 5,939 measurements.
How much water do wells in Cascade County produce?
The median tested yield is 22 gpm (middle half: 10 gpm–40 gpm), from 5,594 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Cascade County?
Companies by number of wells completed in this county since 2016, per filed well logs.
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Well records by ZIP code in Cascade County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Malmstrom Afb (59402) — 1,162 wells, median 175 ft
- Great Falls (59404) — 960 wells, median 111 ft
- Great Falls (59405) — 837 wells, median 152 ft
- Vaughn (59487) — 615 wells, median 89 ft
- Cascade (59421) — 542 wells, median 55 ft
- Ulm (59485) — 542 wells, median 125 ft
- Belt (59412) — 500 wells, median 125 ft
- Sand Coulee (59472) — 484 wells, median 200 ft
- Monarch (59463) — 349 wells, median 150 ft
- Simms (59477) — 311 wells, median 33 ft
- Stockett (59480) — 281 wells, median 124 ft
- Black Eagle (59414) — 250 wells, median 27 ft
- Fort Shaw (59443) — 219 wells, median 36 ft
- Great Falls (59406) — 218 wells, median 27 ft
- Sun River (59483) — 171 wells, median 50 ft
- Neihart (59465) — 65 wells, median 71 ft
Method: medians computed from GWIC records (site type WELL, non-abandoned; depths 0–5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.