⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Thurston County › Olympia (98501)

Olympia, WA (98501): well depth, water level & drilling cost

✓ 1,072 Ecology records · Thurston County

84 ftmedian well depth
59 ft–120 fttypical depth range
30 ftmedian static water level
20 gpmmedian yield (109 tests)

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How deep are wells in and around Olympia (98501), Washington?

The median drilled well depth in and around Olympia (98501) is 84 ft, based on 1,067 wells with recorded depths in the state Ecology database. Half fall between 59 ft and 120 ft; 90% are shallower than 189 ft.

How much does it cost to drill a well in and around Olympia (98501)?

Applying published per-foot rates to the local median depth of 84 ft: drilling and casing alone typically runs $2,100–$5,460; a complete system including pump, pressure tank, and hookup typically runs $5,040–$8,400. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Olympia (98501)?

The median static water level is 30 ft below ground surface (middle half of wells: 19 ft–45 ft), from 298 measurements.

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Drilled depth distribution

0–50 ft 174 50–100 ft 477 100–150 ft 245 150–200 ft 76 200–300 ft 43 300–400 ft 26 400–600 ft 19 600+ ft 7
Looking at a specific property in Olympia (98501)?

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Get quotes from drillers who work in Olympia (98501)

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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.