Washington Well Data field records · 2026 survey

Washington Well DataKing County › ZIP 98072

ZIP 98072, King County: well depth, water level & drilling cost

✓ 57 Ecology records · King County

145 ftmedian well depth
94 ft–237 fttypical depth range
91 ftmedian static water level
17 gpmmedian yield (20 tests)

How deep are wells in ZIP 98072, Washington?

The median drilled well depth in ZIP 98072 is 145 ft, based on 57 wells with recorded depths in the state Ecology database. Half fall between 94 ft and 237 ft; 90% are shallower than 285 ft.

How much does it cost to drill a well in ZIP 98072?

Applying published per-foot rates to the local median depth of 137 ft: drilling and casing alone typically runs $3,425–$8,905; a complete system including pump, pressure tank, and hookup typically runs $8,220–$13,700. Actual quotes depend on site access, geology, and casing requirements.

Get quotes from drillers who work in ZIP 98072

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

What is the static water level in ZIP 98072?

The median static water level is 91 ft below ground surface (middle half of wells: 35 ft–106 ft), from 13 measurements.

Pull every recorded well near a ZIP 98072 address — $19

Bad well water in King County?

Iron staining, rotten-egg smell, hard water, or a failed test at closing — Salish Water Works, a new Puget Sound company, publishes its treatment systems and planned prices up front and specs the fix from your water test. No in-home sales visit. Installation opens Fall 2026; the waitlist is open now and waitlist members get first slot priority.

See planned systems & pricing → salishwaterworks.com

Drilled depth distribution

0–50 ft 3 50–100 ft 13 100–150 ft 13 150–200 ft 7 200–300 ft 17 300–400 ft 0 400–600 ft 4 600+ ft 0
Looking at a specific property in ZIP 98072?

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 King 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.