Ohio Well Data › Allen County
Allen County, Ohio: well depth, water level & drilling cost
✓ 7,124 ODNR records · verified 2026-08-13
How deep are wells in Allen County, Ohio?
The median drilled well depth in Allen County is 70 ft, based on 7,122 wells with recorded depths in the state ODNR database. Half of all wells fall between 52 ft and 102 ft; 90% are shallower than 160 ft. Wells drilled since 2016 have a median depth of 74 ft.
How much does it cost to drill a well in Allen County?
Applying published per-foot rates to the local median depth of 74 ft: drilling and casing alone typically runs $1,850–$4,810; a complete system including pump, pressure tank, and hookup typically runs $4,440–$7,400. Actual quotes depend on site access, geology, and casing requirements.
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What is the static water level in Allen County?
The median static water level is 27 ft below ground surface (middle half of wells: 18 ft–40 ft), from 6,747 measurements.
How much water do wells in Allen County produce?
The median tested yield is 15 gpm (middle half: 10 gpm–20 gpm), from 6,478 pump tests. A typical household needs 5–10 gpm.
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Drilled depth distribution
Who drills wells in Allen 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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Median depth, water level, and yield for each ZIP code with recorded wells.
- Lima (45806) — 1,381 wells, median 81 ft
- Lima (45801) — 986 wells, median 65 ft
- Elida (45807) — 750 wells, median 60 ft
- Harrod (45850) — 627 wells, median 73 ft
- Delphos (45833) — 581 wells, median 65 ft
- Bluffton (45817) — 573 wells, median 63 ft
- Lima (45804) — 430 wells, median 78 ft
- Lima (45805) — 406 wells, median 91 ft
- Spencerville (45887) — 391 wells, median 80 ft
- Cairo (45820) — 106 wells, median 44 ft
- Lafayette (45854) — 57 wells, median 60 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.