Michigan Well Data › Ontonagon County
Ontonagon County, Michigan: well depth, water level & drilling cost
✓ 1,473 Wellogic records · verified 2026-08-13
How deep are wells in Ontonagon County, Michigan?
The median drilled well depth in Ontonagon County is 113 ft, based on 1,463 wells with recorded depths in the state Wellogic database. Half of all wells fall between 76 ft and 179 ft; 90% are shallower than 242 ft. Wells drilled since 2016 have a median depth of 100 ft.
How much does it cost to drill a well in Ontonagon County?
Applying published per-foot rates to the local median depth of 100 ft: drilling and casing alone typically runs $2,500–$6,500; a complete system including pump, pressure tank, and hookup typically runs $6,000–$10,000. Actual quotes depend on site access, geology, and casing requirements.
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What is the static water level in Ontonagon County?
The median static water level is 20 ft below ground surface (middle half of wells: 10 ft–40 ft), from 1,403 measurements.
How much water do wells in Ontonagon County produce?
The median tested yield is 9 gpm (middle half: 4 gpm–15 gpm), from 1,402 pump tests. A typical household needs 5–10 gpm.
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Drilled depth distribution
Who drills wells in Ontonagon County?
Drillers by number of wells completed in this county since 2016, per filed well records (EGLE Wellogic); shown by registered well-driller number.
| Driller | Wells since 2016 |
|---|---|
| Binz Bros Well Drilling | 41 |
| Siirtola Well Drilling | 37 |
| Larson Well Drilling LLC | 36 |
| Larson Wells LLC | 23 |
| Rhinelander Well | 21 |
| Hedberg Well Drilling | 14 |
| Lic. #93-2051 | 6 |
| Lic. #66-0621 | 5 |
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Median depth, water level, and yield for each ZIP code with recorded wells.
- Ontonagon (49953) — 444 wells, median 97 ft
- Bruce Crossing (49912) — 236 wells, median 141 ft
- Bergland (49910) — 165 wells, median 99 ft
- Mass City (49948) — 139 wells, median 146 ft
- Ewen (49925) — 115 wells, median 143 ft
- Greenland (49929) — 60 wells, median 79 ft
Method: medians computed from Wellogic records (water-supply wells only (household, irrigation, industrial, Type I/II/III public supply) — heat-pump, test and unclassified wells 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.