Idaho Well Data › Idaho County
Idaho County, Idaho: well depth, water level & drilling cost
✓ 4,868 IDWR records · verified 2026-10-12
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How deep are wells in Idaho County, Idaho?
The median drilled well depth in Idaho County is 275 ft, based on 2,816 wells with recorded depths in the state IDWR database. Half of all wells fall between 175 ft and 420 ft; 90% are shallower than 600 ft. Wells drilled since 2016 have a median depth of 284 ft.
How much does it cost to drill a well in Idaho County?
Applying published per-foot rates to the local median depth of 284 ft: drilling and casing alone typically runs $7,100–$18,460; a complete system including pump, pressure tank, and hookup typically runs $17,040–$28,400. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Idaho County?
The median static water level is 100 ft below ground surface (middle half of wells: 40 ft–205 ft), from 4,395 measurements.
How much water do wells in Idaho County produce?
The median tested yield is 15 gpm (middle half: 8 gpm–30 gpm), from 4,319 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
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Well records by ZIP code in Idaho County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Kamiah (83536) — 882 wells, median 334 ft
- Grangeville (83530) — 845 wells, median 280 ft
- Kooskia (83539) — 666 wells, median 280 ft
- Stites (83552) — 544 wells, median 380 ft
- White Bird (83554) — 415 wells, median 325 ft
- Pollock (83547) — 400 wells, median 180 ft
- Cottonwood (83522) — 277 wells, median 300 ft
- Elk City (83525) — 223 wells, median 231 ft
- Riggins (83549) — 145 wells, median 101 ft
- Fenn (83531) — 131 wells, median 240 ft
- Warren (83671) — 128 wells, median 73 ft
- Lucile (83542) — 128 wells, median 205 ft
- Greencreek (83533) — 127 wells, median 263 ft
- Ferdinand (83526) — 123 wells, median 260 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.