⟁ Oregon Well Data field records · 2026 survey

Oregon Well Data › Marion County

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

✓ 27,407 OWRD records · verified 2026-06-30

135 ftmedian well depth
88 ft–228 fttypical depth range
35 ftmedian static water level
30 gpmmedian yield (22,455 tests)

How deep are wells in Marion County, Oregon?

The median drilled well depth in Marion County is 135 ft, based on 24,226 wells with recorded depths in the state OWRD database. Half of all wells fall between 88 ft and 228 ft; 90% are shallower than 344 ft. Wells drilled since 2016 have a median depth of 190 ft.

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

Applying published per-foot rates to the local median depth of 190 ft: drilling and casing alone typically runs $4,750–$12,350; a complete system including pump, pressure tank, and hookup typically runs $11,400–$19,000. Actual quotes depend on site access, geology, and casing requirements.

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 24,955 measurements.

How much water do wells in Marion County produce?

The median tested yield is 30 gpm (middle half: 15 gpm–60 gpm), from 22,455 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 2,293 50–100 ft 5,100 100–150 ft 6,215 150–200 ft 2,881 200–300 ft 3,981 300–400 ft 2,096 400–600 ft 1,388 600+ ft 272

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 INC639
SIPPEL WELL DRILLING INC310
WESTERBERG DRILLING227
JONES WELL DRILLING CO INC208
ALL SEASONS WELL DRILLING126
RON ROBINSON WELL DRILLING75
GROSSEN'S WELL DRILLING68
R STADELI & SONS WELL & PUMP INC54

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Looking at a specific property in Marion County?

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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.