⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Jefferson County › ZIP 98365

ZIP 98365, Jefferson County: well depth, water level & drilling cost

✓ 86 Ecology records · Jefferson County

155 ftmedian well depth
87 ft–260 fttypical depth range
87 ftmedian static water level
10 gpmmedian yield (27 tests)

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How deep are wells in ZIP 98365, Washington?

The median drilled well depth in ZIP 98365 is 155 ft, based on 85 wells with recorded depths in the state Ecology database. Half fall between 87 ft and 260 ft; 90% are shallower than 320 ft.

How much does it cost to drill a well in ZIP 98365?

Applying published per-foot rates to the local median depth of 155 ft: drilling and casing alone typically runs $3,875–$10,075; a complete system including pump, pressure tank, and hookup typically runs $9,300–$15,500. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in ZIP 98365?

The median static water level is 87 ft below ground surface (middle half of wells: 45 ft–110 ft), from 25 measurements.

Drilled depth distribution

0–50 ft 3 50–100 ft 23 100–150 ft 16 150–200 ft 9 200–300 ft 18 300–400 ft 14 400–600 ft 2 600+ ft 0
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Part of Jefferson County well records.

Method: medians computed from Ecology records (water wells only — soil/environmental borings and decommissions excluded; depths 0–5,000 ft), grouped by ZIP from the recorded address. Cost estimate applies published per-foot ranges to the local median depth — full methodology & sources.