Ohio Well Data › Madison County
Madison County, Ohio: well depth, water level & drilling cost
✓ 5,015 ODNR records · verified 2026-09-28
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How deep are wells in Madison County, Ohio?
The median drilled well depth in Madison County is 105 ft, based on 5,014 wells with recorded depths in the state ODNR database. Half of all wells fall between 74 ft and 142 ft; 90% are shallower than 181 ft. Wells drilled since 2016 have a median depth of 103 ft.
How much does it cost to drill a well in Madison County?
Applying published per-foot rates to the local median depth of 103 ft: drilling and casing alone typically runs $2,575–$6,695; a complete system including pump, pressure tank, and hookup typically runs $6,180–$10,300. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Madison County?
The median static water level is 30 ft below ground surface (middle half of wells: 18 ft–46 ft), from 4,847 measurements.
How much water do wells in Madison County produce?
The median tested yield is 20 gpm (middle half: 12 gpm–25 gpm), from 4,680 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Madison County?
Companies by number of wells completed in this county since 2016, per filed well logs (ODNR Division of Geological Survey).
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Well records by ZIP code in Madison County
Median depth, water level, and yield for each ZIP code with recorded wells.
- London (43140) — 1,620 wells, median 100 ft
- West Jefferson (43162) — 1,388 wells, median 118 ft
- 43143 — 1,022 wells, median 107 ft
- Derby (43117) — 337 wells, median 138 ft
- Sedalia (43151) — 294 wells, median 98 ft
- South Solon (43153) — 255 wells, median 134 ft
- Irwin (43029) — 226 wells, median 100 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.