⟁ Idaho Well Data field records · 2026 survey

Idaho Well Data › Lemhi County

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

✓ 3,280 IDWR records · verified 2026-08-21

64 ftmedian well depth
38 ft–170 fttypical depth range
19 ftmedian static water level
18 gpmmedian yield (2,262 tests)

How deep are wells in Lemhi County, Idaho?

The median drilled well depth in Lemhi County is 64 ft, based on 2,239 wells with recorded depths in the state IDWR database. Half of all wells fall between 38 ft and 170 ft; 90% are shallower than 305 ft. Wells drilled since 2016 have a median depth of 120 ft.

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

Applying published per-foot rates to the local median depth of 120 ft: drilling and casing alone typically runs $3,000–$7,800; a complete system including pump, pressure tank, and hookup typically runs $7,200–$12,000. Actual quotes depend on site access, geology, and casing requirements.

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What is the static water level in Lemhi County?

The median static water level is 19 ft below ground surface (middle half of wells: 9 ft–40 ft), from 2,943 measurements.

How much water do wells in Lemhi County produce?

The median tested yield is 18 gpm (middle half: 10 gpm–26 gpm), from 2,262 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 873 50–100 ft 472 100–150 ft 268 150–200 ft 123 200–300 ft 232 300–400 ft 162 400–600 ft 92 600+ ft 17
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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.