Washington Well Data › Spokane County
Spokane County, Washington: well depth, water level & drilling cost
✓ 24,999 Ecology records · verified 2026-10-02
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How deep are wells in Spokane County, Washington?
The median drilled well depth in Spokane County is 200 ft, based on 24,840 wells with recorded depths in the state Ecology database. Half of all wells fall between 120 ft and 320 ft; 90% are shallower than 480 ft. Wells drilled since 2016 have a median depth of 240 ft.
How much does it cost to drill a well in Spokane County?
Applying published per-foot rates to the local median depth of 240 ft: drilling and casing alone typically runs $6,000–$15,600; a complete system including pump, pressure tank, and hookup typically runs $14,400–$24,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Spokane County?
The median static water level is 65 ft below ground surface (middle half of wells: 37 ft–135 ft), from 4,263 measurements.
How much water do wells in Spokane County produce?
The median tested yield is 14 gpm (middle half: 5 gpm–25 gpm), from 4,309 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Spokane 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 |
|---|---|
| Brian Mosset | 896 |
| Todd Lively | 629 |
| Alex Vermillion | 542 |
| Chris Macpherson | 206 |
| Darin Minden | 201 |
| Morgan Joy | 184 |
| Jim Mcleslie | 155 |
| Brian Schaefer | 131 |
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Well records by ZIP code in Spokane County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Deer Park (99006) — 3,159 wells, median 180 ft
- Elk (99009) — 2,035 wells, median 190 ft
- 99004 — 1,775 wells, median 180 ft
- Chattaroy (99003) — 1,695 wells, median 265 ft
- Nine Mile Falls (99026) — 1,628 wells, median 200 ft
- Colbert (99005) — 1,366 wells, median 187 ft
- Marshall (99020) — 1,241 wells, median 160 ft
- Mead (99021) — 1,143 wells, median 185 ft
- Spokane (99217) — 1,096 wells, median 220 ft
- 99224 — 983 wells, median 155 ft
- Valleyford (99036) — 954 wells, median 210 ft
- Spokane (99223) — 914 wells, median 250 ft
- 99022 — 845 wells, median 180 ft
- Spangle (99031) — 549 wells, median 220 ft
- Fairchild Air Force Base (99011) — 549 wells, median 145 ft
- Spokane (99208) — 537 wells, median 180 ft
- Newman Lake (99025) — 528 wells, median 340 ft
- Airway Heights (99001) — 498 wells, median 160 ft
- Mica (99023) — 493 wells, median 350 ft
- Liberty Lake (99019) — 392 wells, median 300 ft
- Spokane (99218) — 351 wells, median 244 ft
- Four Lakes (99014) — 323 wells, median 160 ft
- Edwall (99008) — 279 wells, median 125 ft
- Veradale (99037) — 249 wells, median 250 ft
- 99016 — 238 wells, median 338 ft
- Spokane (99204) — 211 wells, median 144 ft
- 00000 — 203 wells, median 240 ft
- Otis Orchards (99027) — 200 wells, median 301 ft
- Spokane (99207) — 194 wells, median 250 ft
- 99030 — 183 wells, median 289 ft
- Spokane (99212) — 175 wells, median 85 ft
- Spokane (99206) — 149 wells, median 320 ft
- Spokane (99205) — 113 wells, median 340 ft
- Spokane (99203) — 112 wells, median 180 ft
- Fairfield (99012) — 102 wells, median 250 ft
- Spokane (99213) — 83 wells, median 495 ft
- Spokane (99201) — 80 wells, median 278 ft
- Spokane (99216) — 66 wells, median 144 ft
- Spokane (99202) — 62 wells, median 128 ft
- Spokane (99210) — 60 wells, median 127 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.