⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Thurston County › Olympia (98506)

Olympia, WA (98506): well depth, water level & drilling cost

✓ 1,618 Ecology records · Thurston County

99 ftmedian well depth
72 ft–143 fttypical depth range
48 ftmedian static water level
20 gpmmedian yield (150 tests)

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How deep are wells in and around Olympia (98506), Washington?

The median drilled well depth in and around Olympia (98506) is 99 ft, based on 1,613 wells with recorded depths in the state Ecology database. Half fall between 72 ft and 143 ft; 90% are shallower than 198 ft.

How much does it cost to drill a well in and around Olympia (98506)?

Applying published per-foot rates to the local median depth of 99 ft: drilling and casing alone typically runs $2,475–$6,435; a complete system including pump, pressure tank, and hookup typically runs $5,940–$9,900. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Olympia (98506)?

The median static water level is 48 ft below ground surface (middle half of wells: 30 ft–81 ft), from 431 measurements.

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Drilled depth distribution

0–50 ft 110 50–100 ft 699 100–150 ft 441 150–200 ft 207 200–300 ft 76 300–400 ft 35 400–600 ft 35 600+ ft 10
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Get quotes from drillers who work in Olympia (98506)

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Part of Thurston 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.