Idaho Well Data › Kootenai County
Kootenai County, Idaho: well depth, water level & drilling cost
✓ 11,156 IDWR records · verified 2026-10-12
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How deep are wells in Kootenai County, Idaho?
The median drilled well depth in Kootenai County is 380 ft, based on 5,585 wells with recorded depths in the state IDWR database. Half of all wells fall between 248 ft and 506 ft; 90% are shallower than 700 ft. Wells drilled since 2016 have a median depth of 422 ft.
How much does it cost to drill a well in Kootenai County?
Applying published per-foot rates to the local median depth of 422 ft: drilling and casing alone typically runs $10,550–$27,430; a complete system including pump, pressure tank, and hookup typically runs $25,320–$42,200. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Kootenai County?
The median static water level is 105 ft below ground surface (middle half of wells: 50 ft–236 ft), from 9,932 measurements.
How much water do wells in Kootenai County produce?
The median tested yield is 15 gpm (middle half: 6 gpm–30 gpm), from 9,767 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
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Well records by ZIP code in Kootenai County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Coeur D'Alene (83816) — 1,853 wells, median 365 ft
- Post Falls (83877) — 1,169 wells, median 340 ft
- Athol (83801) — 1,128 wells, median 480 ft
- Hayden (83835) — 1,079 wells, median 334 ft
- Rathdrum (83858) — 1,010 wells, median 360 ft
- Spirit Lake (83869) — 975 wells, median 420 ft
- Worley (83876) — 904 wells, median 300 ft
- Harrison (83833) — 844 wells, median 340 ft
- Post Falls (83854) — 703 wells, median 310 ft
- Medimont (83842) — 485 wells, median 303 ft
- Coeur D'Alene (83814) — 416 wells, median 300 ft
- Bayview (83803) — 404 wells, median 442 ft
- Cataldo (83810) — 356 wells, median 247 ft
- Coeur D'Alene (83815) — 248 wells, median 320 ft
Method: medians computed from IDWR records (IDWR well records, excluding the 8,758 monitoring, injection, test, dewatering, cathodic-protection and heat-exchange wells that are not water supplies; depths 0-5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.