⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Thurston County

Thurston County, Washington: well depth, water level & drilling cost

✓ 19,230 Ecology records · verified 2026-06-11

90 ftmedian well depth
60 ft–137 fttypical depth range
37 ftmedian static water level
20 gpmmedian yield (4,016 tests)

How deep are wells in Thurston County, Washington?

The median drilled well depth in Thurston County is 90 ft, based on 17,794 wells with recorded depths in the state Ecology database. Half of all wells fall between 60 ft and 137 ft; 90% are shallower than 220 ft. Wells drilled since 2016 have a median depth of 119 ft.

How much does it cost to drill a well in Thurston County?

Applying published per-foot rates to the local median depth of 119 ft: drilling and casing alone typically runs $2,975–$7,735; a complete system including pump, pressure tank, and hookup typically runs $7,140–$11,900. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in Thurston County?

The median static water level is 37 ft below ground surface (middle half of wells: 20 ft–70 ft), from 4,234 measurements.

How much water do wells in Thurston County produce?

The median tested yield is 20 gpm (middle half: 15 gpm–40 gpm), from 4,016 pump tests. A typical household needs 5–10 gpm.

Drilled depth distribution

0–50 ft 2,252 50–100 ft 7,795 100–150 ft 3,970 150–200 ft 1,542 200–300 ft 1,265 300–400 ft 515 400–600 ft 365 600+ ft 90

Who drills wells in Thurston County?

Licensed drillers by number of wells completed in this county since 2016, per filed well reports (license roster: Washington Department of Ecology).

DrillerWells since 2016
Daniel Carpenter350
Christopher Jones323
Joshua Koepp169
Robert Laymon157
Jess Swanson107
Mark Wiese94
Rogeray Phythian76
Michael Cyrier58

Get quotes from local drillers

Looking at a specific property in Thurston County?

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

Method: 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.