⟁ Idaho Well Data field records · 2026 survey

Idaho Well Data › Washington County

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

✓ 2,770 IDWR records · verified 2026-10-12

98 ftmedian well depth
45 ft–205 fttypical depth range
17 ftmedian static water level
30 gpmmedian yield (2,035 tests)

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How deep are wells in Washington County, Idaho?

The median drilled well depth in Washington County is 98 ft, based on 1,922 wells with recorded depths in the state IDWR database. Half of all wells fall between 45 ft and 205 ft; 90% are shallower than 345 ft. Wells drilled since 2016 have a median depth of 109 ft.

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

The median static water level is 17 ft below ground surface (middle half of wells: 10 ft–40 ft), from 2,405 measurements.

How much water do wells in Washington County produce?

The median tested yield is 30 gpm (middle half: 15 gpm–50 gpm), from 2,035 pump tests. A typical household needs 5–10 gpm.

Drilled depth distribution

0–50 ft 554 50–100 ft 409 100–150 ft 246 150–200 ft 187 200–300 ft 250 300–400 ft 131 400–600 ft 103 600+ ft 42
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Well records by ZIP code in Washington 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.