Washington Well Data › Island County
Island County, Washington: well depth, water level & drilling cost
✓ 6,772 Ecology records · verified 2026-06-11
How deep are wells in Island County, Washington?
The median drilled well depth in Island County is 174 ft, based on 6,418 wells with recorded depths in the state Ecology database. Half of all wells fall between 112 ft and 245 ft; 90% are shallower than 320 ft. Wells drilled since 2016 have a median depth of 172 ft.
How much does it cost to drill a well in Island County?
Applying published per-foot rates to the local median depth of 172 ft: drilling and casing alone typically runs $4,300–$11,180; a complete system including pump, pressure tank, and hookup typically runs $10,320–$17,200. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Island County?
The median static water level is 132 ft below ground surface (middle half of wells: 68 ft–199 ft), from 846 measurements.
How much water do wells in Island County produce?
The median tested yield is 12 gpm (middle half: 10 gpm–16 gpm), from 838 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Island County?
Licensed drillers by number of wells completed in this county since 2016, per filed well reports (license roster: Washington Department of Ecology).
| Driller | Wells since 2016 |
|---|---|
| Brannon Hopke | 191 |
| Ralph Riggles | 148 |
| Gerlof Boonstra | 112 |
| Ryan Wilhonen | 112 |
| Westin Halvorson | 57 |
| Eugene Hitt | 49 |
| Ryan Harris | 24 |
| E Himebaugh | 19 |
Get quotes from local drillers
See every recorded well near any address — depths, water levels, yields, original driller's logs — in a one-time report.
Free lookup Property report — $19Method: medians computed from Ecology records (water wells only — soil/environmental borings and decommissions excluded; depths 0–5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.