⟁ Washington Well Data field records · 2026 survey

Washington Well Data › San Juan County › ZIP 98261

ZIP 98261, San Juan County: well depth, water level & drilling cost

✓ 119 Ecology records · San Juan County

165 ftmedian well depth
119 ft–265 fttypical depth range
98 ftmedian static water level
20 gpmmedian yield (28 tests)

How deep are wells in ZIP 98261, Washington?

The median drilled well depth in ZIP 98261 is 165 ft, based on 119 wells with recorded depths in the state Ecology database. Half fall between 119 ft and 265 ft; 90% are shallower than 347 ft.

How much does it cost to drill a well in ZIP 98261?

Applying published per-foot rates to the local median depth of 166 ft: drilling and casing alone typically runs $4,150–$10,790; a complete system including pump, pressure tank, and hookup typically runs $9,960–$16,600. Actual quotes depend on site access, geology, and casing requirements.

Get quotes from drillers who work in ZIP 98261

Free for property owners. We route your request only to licensed drillers who actually file well logs in San Juan County — never sold elsewhere.

What is the static water level in ZIP 98261?

The median static water level is 98 ft below ground surface (middle half of wells: 36 ft–147 ft), from 32 measurements.

Pull every recorded well near a ZIP 98261 address — $19

Drilled depth distribution

0–50 ft 9 50–100 ft 13 100–150 ft 29 150–200 ft 22 200–300 ft 25 300–400 ft 13 400–600 ft 7 600+ ft 1
Looking at a specific property in ZIP 98261?

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Part of San Juan 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.