⟁ Idaho Well Data field records · 2026 survey

Idaho Well Data › Lewis County

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

✓ 609 IDWR records · verified 2026-10-12

319 ftmedian well depth
200 ft–500 fttypical depth range
119 ftmedian static water level
15 gpmmedian yield (522 tests)

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How deep are wells in Lewis County, Idaho?

The median drilled well depth in Lewis County is 319 ft, based on 400 wells with recorded depths in the state IDWR database. Half of all wells fall between 200 ft and 500 ft; 90% are shallower than 676 ft. Wells drilled since 2016 have a median depth of 350 ft.

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

Applying published per-foot rates to the local median depth of 319 ft: drilling and casing alone typically runs $7,975–$20,735; a complete system including pump, pressure tank, and hookup typically runs $19,140–$31,900. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in Lewis County?

The median static water level is 119 ft below ground surface (middle half of wells: 55 ft–259 ft), from 552 measurements.

How much water do wells in Lewis County produce?

The median tested yield is 15 gpm (middle half: 8 gpm–25 gpm), from 522 pump tests. A typical household needs 5–10 gpm.

Drilled depth distribution

0–50 ft 2 50–100 ft 9 100–150 ft 38 150–200 ft 44 200–300 ft 89 300–400 ft 61 400–600 ft 91 600+ ft 66
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Well records by ZIP code in Lewis 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.