⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Spokane County › ZIP 99021

ZIP 99021, Spokane County: well depth, water level & drilling cost

✓ 286 Ecology records · Spokane County

260 ftmedian well depth
145 ft–440 fttypical depth range
65 ftmedian static water level
10 gpmmedian yield (129 tests)

How deep are wells in ZIP 99021, Washington?

The median drilled well depth in ZIP 99021 is 260 ft, based on 285 wells with recorded depths in the state Ecology database. Half fall between 145 ft and 440 ft; 90% are shallower than 600 ft.

How much does it cost to drill a well in ZIP 99021?

Applying published per-foot rates to the local median depth of 300 ft: drilling and casing alone typically runs $7,500–$19,500; a complete system including pump, pressure tank, and hookup typically runs $18,000–$30,000. Actual quotes depend on site access, geology, and casing requirements.

Get quotes from drillers who work in ZIP 99021

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

What is the static water level in ZIP 99021?

The median static water level is 65 ft below ground surface (middle half of wells: 50 ft–133 ft), from 110 measurements.

Pull every recorded well near a ZIP 99021 address — $19

Drilled depth distribution

0–50 ft 4 50–100 ft 23 100–150 ft 47 150–200 ft 35 200–300 ft 53 300–400 ft 35 400–600 ft 52 600+ ft 36
Looking at a specific property in ZIP 99021?

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 Spokane 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.