Ohio Well Data › Mercer County
Mercer County, Ohio: well depth, water level & drilling cost
✓ 5,033 ODNR records · verified 2026-06-29
How deep are wells in Mercer County, Ohio?
The median drilled well depth in Mercer County is 150 ft, based on 5,030 wells with recorded depths in the state ODNR database. Half of all wells fall between 117 ft and 182 ft; 90% are shallower than 230 ft. Wells drilled since 2016 have a median depth of 177 ft.
How much does it cost to drill a well in Mercer County?
Applying published per-foot rates to the local median depth of 177 ft: drilling and casing alone typically runs $4,425–$11,505; a complete system including pump, pressure tank, and hookup typically runs $10,620–$17,700. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Mercer County?
The median static water level is 29 ft below ground surface (middle half of wells: 18 ft–45 ft), from 4,974 measurements.
How much water do wells in Mercer County produce?
The median tested yield is 21 gpm (middle half: 18 gpm–35 gpm), from 4,709 pump tests. A typical household needs 5–10 gpm.
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Drilled depth distribution
Who drills wells in Mercer County?
Companies by number of wells completed in this county since 2016, per filed well logs (ODNR Division of Geological Survey).
| Driller | Wells since 2016 |
|---|---|
| QUINTER WELL DRILLING LLC | 725 |
| DELLINGER BROS LLC | 129 |
| HUWER DRILLING | 22 |
| WILEY WELL DRILLING INC | 12 |
| G H BIERLY INC | 8 |
| SEVER WATER WELL DRILLING | 7 |
| DAVIS DRILLING | 7 |
| ORTMAN DRILLING INC | 6 |
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Median depth, water level, and yield for each ZIP code with recorded wells.
- Celina (45822) — 1,312 wells, median 150 ft
- Ft Recovery (45846) — 461 wells, median 182 ft
- Maria Stein (45860) — 390 wells, median 201 ft
- Rockford (45882) — 244 wells, median 135 ft
- Coldwater (45828) — 217 wells, median 162 ft
- Henry (45883) — 186 wells, median 240 ft
- Mendon (45862) — 97 wells, median 122 ft
Method: medians computed from ODNR records (water-supply wells only (domestic, public/municipal, commercial, industrial, agricultural/irrigation, fire protection) — monitoring, test/boring, heat-pump, injection, abandoned/sealed 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.