Washington Well Data › Cowlitz County
Cowlitz County, Washington: well depth, water level & drilling cost
✓ 5,834 Ecology records · verified 2026-08-03
How deep are wells in Cowlitz County, Washington?
The median drilled well depth in Cowlitz County is 201 ft, based on 5,791 wells with recorded depths in the state Ecology database. Half of all wells fall between 118 ft and 320 ft; 90% are shallower than 480 ft. Wells drilled since 2016 have a median depth of 202 ft.
How much does it cost to drill a well in Cowlitz County?
Applying published per-foot rates to the local median depth of 202 ft: drilling and casing alone typically runs $5,050–$13,130; a complete system including pump, pressure tank, and hookup typically runs $12,120–$20,200. Actual quotes depend on site access, geology, and casing requirements.
Free for property owners. We route your request only to licensed drillers who actually file well logs in Cowlitz County — never sold elsewhere.
What is the static water level in Cowlitz County?
The median static water level is 71 ft below ground surface (middle half of wells: 33 ft–136 ft), from 1,687 measurements.
How much water do wells in Cowlitz County produce?
The median tested yield is 13 gpm (middle half: 7 gpm–25 gpm), from 1,989 pump tests. A typical household needs 5–10 gpm.
Pull every recorded well near a Cowlitz County address — $19
Drilled depth distribution
Who drills wells in Cowlitz County?
Licensed drillers by number of wells completed in this county since 2016, per filed well reports (license roster: Washington Department of Ecology).
| Driller | Wells since 2016 |
|---|---|
| Andrew Orth | 548 |
| Christopher Mcghee | 363 |
| Michael Pitner | 243 |
| Timothy Lapham | 233 |
| Reid Redinger | 133 |
| Willie Williams | 53 |
| Lonnie Bopp | 43 |
| Joel Welsh | 42 |
See every driller with wells on record in Cowlitz County, ranked →
Get quotes from local drillers
See every recorded well near any address — depths, water levels, yields, original driller's logs — in a one-time report.
Free lookup Property report — $19Well records by ZIP code in Cowlitz County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Woodland (98674) — 856 wells, median 222 ft
- Castle Rock (98611) — 852 wells, median 180 ft
- Kelso (98626) — 664 wells, median 225 ft
- 98632 — 452 wells, median 220 ft
- Kalama (98625) — 382 wells, median 242 ft
- Ariel (98603) — 239 wells, median 174 ft
- Toutle (98649) — 138 wells, median 124 ft
Method: medians computed from Ecology records (water wells only — soil/environmental borings and decommissions 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.