⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Jefferson County › ZIP 98320

ZIP 98320, Jefferson County: well depth, water level & drilling cost

✓ 84 Ecology records · Jefferson County

220 ftmedian well depth
101 ft–324 fttypical depth range
48 ftmedian static water level
20 gpmmedian yield (20 tests)

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How deep are wells in ZIP 98320, Washington?

The median drilled well depth in ZIP 98320 is 220 ft, based on 83 wells with recorded depths in the state Ecology database. Half fall between 101 ft and 324 ft; 90% are shallower than 483 ft.

How much does it cost to drill a well in ZIP 98320?

Applying published per-foot rates to the local median depth of 220 ft: drilling and casing alone typically runs $5,500–$14,300; a complete system including pump, pressure tank, and hookup typically runs $13,200–$22,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in ZIP 98320?

The median static water level is 48 ft below ground surface (middle half of wells: 29 ft–85 ft), from 15 measurements.

Drilled depth distribution

0–50 ft 7 50–100 ft 12 100–150 ft 9 150–200 ft 10 200–300 ft 20 300–400 ft 8 400–600 ft 15 600+ ft 2
Looking at a specific property in ZIP 98320?

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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.