Washington Well Data › Cowlitz County › Castle Rock (98611)
Castle Rock, WA (98611): well depth, water level & drilling cost
✓ 850 Ecology records · Cowlitz County
How deep are wells in Castle Rock (98611), Washington?
The median drilled well depth in Castle Rock (98611) is 180 ft, based on 844 wells with recorded depths in the state Ecology database. Half fall between 102 ft and 282 ft; 90% are shallower than 422 ft.
How much does it cost to drill a well in Castle Rock (98611)?
Applying published per-foot rates to the local median depth of 183 ft: drilling and casing alone typically runs $4,575–$11,895; a complete system including pump, pressure tank, and hookup typically runs $10,980–$18,300. Actual quotes depend on site access, geology, and casing requirements.
Free for property owners. We route your request only to licensed drillers who actually file well logs in Cowlitz County — never sold elsewhere.
What is the static water level in Castle Rock (98611)?
The median static water level is 62 ft below ground surface (middle half of wells: 32 ft–112 ft), from 406 measurements.
Pull every recorded well near a Castle Rock (98611) address — $19
Drilled depth distribution
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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.