Oregon Well Data › Multnomah County
Multnomah County, Oregon: well depth, water level & drilling cost
✓ 7,914 OWRD records · verified 2026-09-28
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How deep are wells in Multnomah County, Oregon?
The median drilled well depth in Multnomah County is 100 ft, based on 5,525 wells with recorded depths in the state OWRD database. Half of all wells fall between 30 ft and 247 ft; 90% are shallower than 470 ft. Wells drilled since 2016 have a median depth of 35 ft.
How much does it cost to drill a well in Multnomah County?
Applying published per-foot rates to the local median depth of 35 ft: drilling and casing alone typically runs $875–$2,275; a complete system including pump, pressure tank, and hookup typically runs $2,100–$3,500. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Multnomah County?
The median static water level is 25 ft below ground surface (middle half of wells: 10 ft–102 ft), from 5,382 measurements.
How much water do wells in Multnomah County produce?
The median tested yield is 20 gpm (middle half: 10 gpm–50 gpm), from 3,906 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Multnomah County?
Companies by number of wells completed in this county since 2016, per filed well logs (Oregon Water Resources Department).
| Driller | Wells since 2016 |
|---|---|
| STEVE KASER | 610 |
| GLACIER DRILLING & DEWATERING | 507 |
| GROUNDWATER PROTECTION SERVICE LLC | 171 |
| SKYLES DRILLING, INC | 56 |
| K CONSULTING | 38 |
| OLSEN WELL DRILLING & PUMP | 37 |
| DBM CONTRACTORS INC | 32 |
| ALPINE RESOURCES LLC | 27 |
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Well records by ZIP code in Multnomah County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Portland (97231) — 1,458 wells, median 240 ft
- Portland (97254) — 1,254 wells, median 25 ft
- Fairview (97024) — 766 wells, median 35 ft
- Portland (97203) — 547 wells, median 20 ft
- Gresham (97080) — 490 wells, median 178 ft
- Corbett (97019) — 432 wells, median 150 ft
- Portland (97236) — 352 wells, median 179 ft
- Portland (97239) — 288 wells, median 60 ft
- Troutdale (97060) — 279 wells, median 171 ft
- Portland (97210) — 273 wells, median 24 ft
- Portland (97218) — 269 wells, median 14 ft
- Portland (97217) — 251 wells, median 35 ft
- Portland (97209) — 185 wells, median 50 ft
- Portland (97230) — 178 wells, median 173 ft
- Portland (97211) — 122 wells, median 40 ft
- Portland (97204) — 116 wells, median 51 ft
- Gresham (97030) — 106 wells, median 173 ft
- Portland (97220) — 104 wells, median 64 ft
- Portland (97207) — 92 wells, median 93 ft
- Portland (97221) — 72 wells, median 400 ft
- Portland (97202) — 69 wells, median 60 ft
- Bridal Veil (97010) — 64 wells, median 131 ft
- Portland (97233) — 55 wells, median 200 ft
- Portland (97219) — 53 wells, median 299 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.