⟁ Montana Well Data field records · 2026 survey

Montana Well Data › Carter County

Carter County, Montana: well depth, water level & drilling cost

✓ 1,583 GWIC records · verified 2026-06-10

160 ftmedian well depth
80 ft–275 fttypical depth range
65 ftmedian static water level
10 gpmmedian yield (1,481 tests)

How deep are wells in Carter County, Montana?

The median drilled well depth in Carter County is 160 ft, based on 1,510 wells with recorded depths in the state GWIC database. Half of all wells fall between 80 ft and 275 ft; 90% are shallower than 460 ft. Wells drilled since 2016 have a median depth of 220 ft.

How much does it cost to drill a well in Carter County?

Applying published per-foot rates to the local median depth of 220 ft: drilling and casing alone typically runs $5,500–$14,300; a complete system including pump, pressure tank, and hookup typically runs $13,200–$24,200. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in Carter County?

The median static water level is 65 ft below ground surface (middle half of wells: 28 ft–136 ft), from 1,389 measurements.

How much water do wells in Carter County produce?

The median tested yield is 10 gpm (middle half: 6 gpm–20 gpm), from 1,481 pump tests. A typical household needs 5–10 gpm.

Drilled depth distribution

0–50 ft 248 50–100 ft 199 100–150 ft 247 150–200 ft 192 200–300 ft 273 300–400 ft 149 400–600 ft 130 600+ ft 72

Who drills wells in Carter County?

Companies by number of wells completed in this county since 2016, per filed well logs.

Drilling companyWells since 2016
ASKIN DRILLING104
WATER SYSTEM DRILLING INC19
HIGGINS DRILLING COMPANY11
WW DRILLING9
WESTON ENGINEERING, INC.5
KELLER DRILLING4
OLYMPUS TECHNICAL SERVICES4
HANSEN ENVIRONMENTAL DRILLING3

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Looking at a specific property in Carter County?

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Method: medians computed from GWIC records (site type WELL, non-abandoned; depths 0–5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-10) to the local median depth — full methodology & sources.