⟁ Idaho Well Data field records · 2026 survey

Idaho Well Data › Clark County

Clark County, Idaho: well depth, water level & drilling cost

✓ 481 IDWR records · verified 2026-10-12

256 ftmedian well depth
166 ft–369 fttypical depth range
131 ftmedian static water level
30 gpmmedian yield (155 tests)

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How deep are wells in Clark County, Idaho?

The median drilled well depth in Clark County is 256 ft, based on 334 wells with recorded depths in the state IDWR database. Half of all wells fall between 166 ft and 369 ft; 90% are shallower than 534 ft. Wells drilled since 2016 have a median depth of 260 ft.

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

Applying published per-foot rates to the local median depth of 256 ft: drilling and casing alone typically runs $6,400–$16,640; a complete system including pump, pressure tank, and hookup typically runs $15,360–$25,600. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in Clark County?

The median static water level is 131 ft below ground surface (middle half of wells: 60 ft–212 ft), from 432 measurements.

How much water do wells in Clark County produce?

The median tested yield is 30 gpm (middle half: 15 gpm–120 gpm), from 155 pump tests. A typical household needs 5–10 gpm.

Drilled depth distribution

0–50 ft 6 50–100 ft 21 100–150 ft 40 150–200 ft 35 200–300 ft 110 300–400 ft 48 400–600 ft 43 600+ ft 31
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Well records by ZIP code in Clark County

Median depth, water level, and yield for each ZIP code with recorded wells.

Method: medians computed from IDWR records (IDWR well records, excluding the 8,758 monitoring, injection, test, dewatering, cathodic-protection and heat-exchange wells that are not water supplies; depths 0-5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.