Oregon Well Data › Yamhill County
Yamhill County, Oregon: well depth, water level & drilling cost
✓ 11,431 OWRD records · verified 2026-09-28
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How deep are wells in Yamhill County, Oregon?
The median drilled well depth in Yamhill County is 170 ft, based on 10,258 wells with recorded depths in the state OWRD database. Half of all wells fall between 108 ft and 265 ft; 90% are shallower than 393 ft. Wells drilled since 2016 have a median depth of 201 ft.
How much does it cost to drill a well in Yamhill County?
Applying published per-foot rates to the local median depth of 201 ft: drilling and casing alone typically runs $5,025–$13,065; a complete system including pump, pressure tank, and hookup typically runs $12,060–$20,100. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Yamhill County?
The median static water level is 38 ft below ground surface (middle half of wells: 20 ft–84 ft), from 10,479 measurements.
How much water do wells in Yamhill County produce?
The median tested yield is 15 gpm (middle half: 7 gpm–30 gpm), from 9,819 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Yamhill County?
Companies by number of wells completed in this county since 2016, per filed well logs (Oregon Water Resources Department).
| Driller | Wells since 2016 |
|---|---|
| BLUE WATER DRILLING CO INC | 432 |
| ARROW DRILLING | 234 |
| BLUE WATER DRILLING COMPANY | 89 |
| DICKERSON WELL DRILLING | 76 |
| PLI SYSTEMS INC | 50 |
| SKYLES DRILLING, INC | 45 |
| A J GAUNT AND SON | 29 |
| MACK DRILLING CO INC | 27 |
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Well records by ZIP code in Yamhill County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Newberg (97132) — 2,693 wells, median 236 ft
- Mcminnville (97128) — 1,634 wells, median 145 ft
- Amity (97101) — 1,375 wells, median 165 ft
- Yamhill (97148) — 1,336 wells, median 164 ft
- Dundee (97115) — 1,196 wells, median 225 ft
- Sheridan (97378) — 979 wells, median 165 ft
- Dayton (97114) — 772 wells, median 120 ft
- Lafayette (97127) — 695 wells, median 125 ft
- Carlton (97111) — 636 wells, median 160 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.