⟁ Idaho Well Data field records · 2026 survey

Idaho Well Data › Custer County

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

✓ 2,626 IDWR records · verified 2026-10-12

100 ftmedian well depth
60 ft–164 fttypical depth range
30 ftmedian static water level
30 gpmmedian yield (1,744 tests)

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How deep are wells in Custer County, Idaho?

The median drilled well depth in Custer County is 100 ft, based on 1,760 wells with recorded depths in the state IDWR database. Half of all wells fall between 60 ft and 164 ft; 90% are shallower than 298 ft. Wells drilled since 2016 have a median depth of 109 ft.

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

Applying published per-foot rates to the local median depth of 109 ft: drilling and casing alone typically runs $2,725–$7,085; a complete system including pump, pressure tank, and hookup typically runs $6,540–$10,900. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in Custer County?

The median static water level is 30 ft below ground surface (middle half of wells: 14 ft–63 ft), from 2,394 measurements.

How much water do wells in Custer County produce?

The median tested yield is 30 gpm (middle half: 18 gpm–50 gpm), from 1,744 pump tests. A typical household needs 5–10 gpm.

Drilled depth distribution

0–50 ft 196 50–100 ft 623 100–150 ft 387 150–200 ft 198 200–300 ft 181 300–400 ft 95 400–600 ft 61 600+ ft 19
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Well records by ZIP code in Custer 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.