Oregon Well Data › Marion County

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

Name: Marion County, Oregon water well statistics
Creator: Oregon Well Data
License: https://creativecommons.org/licenses/by/4.0/

✓ 27,449 OWRD records · verified 2026-09-28

135 ftmedian well depth

88 ft–229 fttypical depth range

35 ftmedian static water level

30 gpmmedian yield (22,488 tests)

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How deep are wells in Marion County, Oregon?

The median drilled well depth in Marion County is 135 ft, based on 24,263 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 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 24,990 measurements.

How much water do wells in Marion County produce?

The median tested yield is 30 gpm (middle half: 15 gpm–60 gpm), from 22,488 pump tests. A typical household needs 5–10 gpm.

Drilled depth distribution

0–50 ft 2,294 50–100 ft 5,104 100–150 ft 6,222 150–200 ft 2,887 200–300 ft 3,986 300–400 ft 2,101 400–600 ft 1,391 600+ ft 278

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).

Driller	Wells since 2016
MACK DRILLING CO INC	656
SIPPEL WELL DRILLING INC	310
WESTERBERG DRILLING	227
JONES WELL DRILLING CO INC	217
ALL SEASONS WELL DRILLING	128
RON ROBINSON WELL DRILLING	75
GROSSEN'S WELL DRILLING	69
R STADELI & SONS WELL & PUMP INC	57

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Well records by ZIP code in Marion County

Median depth, water level, and yield for each ZIP code with recorded wells.

Jefferson (97352) — 3,028 wells, median 84 ft
Salem (97317) — 2,709 wells, median 168 ft
Salem (97306) — 2,437 wells, median 214 ft
Silverton (97381) — 2,145 wells, median 208 ft
Turner (97392) — 1,940 wells, median 165 ft
Salem (97305) — 1,557 wells, median 118 ft
Aumsville (97325) — 1,535 wells, median 70 ft
Mount Angel (97362) — 1,264 wells, median 178 ft
Salem (97303) — 1,154 wells, median 100 ft
Gervais (97026) — 1,075 wells, median 130 ft
Salem (97310) — 1,065 wells, median 87 ft
Scotts Mills (97375) — 922 wells, median 233 ft
Woodburn (97071) — 861 wells, median 129 ft
Donald (97020) — 797 wells, median 173 ft
Salem (97302) — 796 wells, median 191 ft
Aurora (97002) — 713 wells, median 134 ft
Salem (97313) — 710 wells, median 90 ft
Keizer (97307) — 655 wells, median 60 ft
Sublimity (97385) — 596 wells, median 220 ft
Saint Paul (97137) — 530 wells, median 145 ft
Mehama (97384) — 516 wells, median 151 ft
Gates (97346) — 345 wells, median 120 ft
Salem (97314) — 264 wells, median 90 ft
Salem (97301) — 255 wells, median 87 ft
Salem (97312) — 81 wells, median 40 ft

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.