⟁ Oregon Well Data field records · 2026 survey

Oregon Well Data › Marion County

Marion County, Oregon: well depth, water level & drilling cost

✓ 27,432 OWRD records · verified 2026-08-14

135 ftmedian well depth
88 ft–229 fttypical depth range
35 ftmedian static water level
30 gpmmedian yield (22,476 tests)

How deep are wells in Marion County, Oregon?

The median drilled well depth in Marion County is 135 ft, based on 24,249 wells with recorded depths in the state OWRD database. Half of all wells fall between 88 ft and 229 ft; 90% are shallower than 345 ft. Wells drilled since 2016 have a median depth of 189 ft.

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

Applying published per-foot rates to the local median depth of 189 ft: drilling and casing alone typically runs $4,725–$12,285; a complete system including pump, pressure tank, and hookup typically runs $11,340–$18,900. Actual quotes depend on site access, geology, and casing requirements.

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What is the static water level in Marion County?

The median static water level is 35 ft below ground surface (middle half of wells: 18 ft–70 ft), from 24,976 measurements.

How much water do wells in Marion County produce?

The median tested yield is 30 gpm (middle half: 15 gpm–60 gpm), from 22,476 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 2,294 50–100 ft 5,102 100–150 ft 6,219 150–200 ft 2,887 200–300 ft 3,982 300–400 ft 2,100 400–600 ft 1,390 600+ ft 275

Who drills wells in Marion County?

Companies by number of wells completed in this county since 2016, per filed well logs (Oregon Water Resources Department).

DrillerWells since 2016
MACK DRILLING CO INC649
SIPPEL WELL DRILLING INC310
WESTERBERG DRILLING227
JONES WELL DRILLING CO INC213
ALL SEASONS WELL DRILLING127
RON ROBINSON WELL DRILLING75
GROSSEN'S WELL DRILLING68
R STADELI & SONS WELL & PUMP INC56

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Method: medians computed from OWRD records (water wells only (log type 'Water Well' — monitoring wells and geotechnical holes 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.