⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Okanogan County › Winthrop (98862)

Winthrop, WA (98862): well depth, water level & drilling cost

✓ 1,367 Ecology records · Okanogan County

120 ftmedian well depth
65 ft–225 fttypical depth range
47 ftmedian static water level
10 gpmmedian yield (177 tests)

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How deep are wells in and around Winthrop (98862), Washington?

The median drilled well depth in and around Winthrop (98862) is 120 ft, based on 1,352 wells with recorded depths in the state Ecology database. Half fall between 65 ft and 225 ft; 90% are shallower than 343 ft.

How much does it cost to drill a well in and around Winthrop (98862)?

Applying published per-foot rates to the local median depth of 120 ft: drilling and casing alone typically runs $3,000–$7,800; a complete system including pump, pressure tank, and hookup typically runs $7,200–$12,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Winthrop (98862)?

The median static water level is 47 ft below ground surface (middle half of wells: 24 ft–88 ft), from 196 measurements.

Drilled depth distribution

0–50 ft 189 50–100 ft 350 100–150 ft 266 150–200 ft 133 200–300 ft 198 300–400 ft 115 400–600 ft 85 600+ ft 16
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Part of Okanogan 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.