⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Okanogan County › ZIP 98840

ZIP 98840, Okanogan County: well depth, water level & drilling cost

✓ 90 Ecology records · Okanogan County

166 ftmedian well depth
89 ft–340 fttypical depth range
35 ftmedian static water level
20 gpmmedian yield (25 tests)

How deep are wells in ZIP 98840, Washington?

The median drilled well depth in ZIP 98840 is 166 ft, based on 89 wells with recorded depths in the state Ecology database. Half fall between 89 ft and 340 ft; 90% are shallower than 500 ft.

How much does it cost to drill a well in ZIP 98840?

Applying published per-foot rates to the local median depth of 136 ft: drilling and casing alone typically runs $3,400–$8,840; a complete system including pump, pressure tank, and hookup typically runs $8,160–$13,600. Actual quotes depend on site access, geology, and casing requirements.

Get quotes from drillers who work in ZIP 98840

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

What is the static water level in ZIP 98840?

The median static water level is 35 ft below ground surface (middle half of wells: 17 ft–55 ft), from 33 measurements.

Pull every recorded well near a ZIP 98840 address — $19

Drilled depth distribution

0–50 ft 6 50–100 ft 19 100–150 ft 15 150–200 ft 5 200–300 ft 14 300–400 ft 13 400–600 ft 15 600+ ft 2
Looking at a specific property in ZIP 98840?

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

Free lookup Property report — $19

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.