⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Grant County › ZIP 99357

ZIP 99357, Grant County: well depth, water level & drilling cost

✓ 285 Ecology records · Grant County

260 ftmedian well depth
175 ft–426 fttypical depth range
125 ftmedian static water level
40 gpmmedian yield (102 tests)

Pull every recorded well near a ZIP 99357 address — $39

How deep are wells in ZIP 99357, Washington?

The median drilled well depth in ZIP 99357 is 260 ft, based on 283 wells with recorded depths in the state Ecology database. Half fall between 175 ft and 426 ft; 90% are shallower than 679 ft.

How much does it cost to drill a well in ZIP 99357?

Applying published per-foot rates to the local median depth of 260 ft: drilling and casing alone typically runs $6,500–$16,900; a complete system including pump, pressure tank, and hookup typically runs $15,600–$26,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in ZIP 99357?

The median static water level is 125 ft below ground surface (middle half of wells: 52 ft–216 ft), from 92 measurements.

Drilled depth distribution

0–50 ft 3 50–100 ft 18 100–150 ft 23 150–200 ft 48 200–300 ft 69 300–400 ft 41 400–600 ft 44 600+ ft 37
Looking at a specific property in ZIP 99357?

See every recorded well near any address — depths, water levels, yields, original driller's logs — in a one-time report.

Free lookup Property report — $39
Get quotes from drillers who work in ZIP 99357

Free. Goes to licensed drillers working Grant County.

Part of Grant 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.