Ohio Well Data › Seneca County

Seneca County, Ohio: well depth, water level & drilling cost

Name: Seneca County, Ohio water well statistics
Creator: Ohio Well Data
License: https://creativecommons.org/licenses/by/4.0/

✓ 5,563 ODNR records · verified 2026-09-28

93 ftmedian well depth

74 ft–118 fttypical depth range

26 ftmedian static water level

15 gpmmedian yield (5,219 tests)

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How deep are wells in Seneca County, Ohio?

The median drilled well depth in Seneca County is 93 ft, based on 5,554 wells with recorded depths in the state ODNR database. Half of all wells fall between 74 ft and 118 ft; 90% are shallower than 143 ft. Wells drilled since 2016 have a median depth of 98 ft.

How much does it cost to drill a well in Seneca County?

Applying published per-foot rates to the local median depth of 98 ft: drilling and casing alone typically runs $2,450–$6,370; a complete system including pump, pressure tank, and hookup typically runs $5,880–$9,800. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in Seneca County?

The median static water level is 26 ft below ground surface (middle half of wells: 15 ft–40 ft), from 5,388 measurements.

How much water do wells in Seneca County produce?

The median tested yield is 15 gpm (middle half: 14 gpm–20 gpm), from 5,219 pump tests. A typical household needs 5–10 gpm.

Drilled depth distribution

0–50 ft 289 50–100 ft 2,872 100–150 ft 1,902 150–200 ft 400 200–300 ft 81 300–400 ft 9 400–600 ft 1 600+ ft 0

Who drills wells in Seneca 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
CLEAR WATER WELL DRILLING	246
SEISMIC DRILLING CO INC	195
BOES WATER WELL DRILLING	146
HOLMAN (DWIGHT) DRILLING	57
ABLE WELL & PUMP	56
KOTTERMAN WELL DRILLING	37
JAMISON WELL DRILLING INC	26
HOLMAN DRILLING	19

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Well records by ZIP code in Seneca County

Median depth, water level, and yield for each ZIP code with recorded wells.

Tiffin (44883) — 2,071 wells, median 95 ft
Fostoria (44830) — 858 wells, median 78 ft
Republic (44867) — 479 wells, median 87 ft
New Riegel (44853) — 420 wells, median 100 ft
Green Springs (44836) — 348 wells, median 96 ft
Melmore (44845) — 301 wells, median 93 ft
Bloomville (44818) — 297 wells, median 94 ft
Alvada (44802) — 275 wells, median 100 ft
Flat Rock (44828) — 228 wells, median 125 ft
Bascom (44809) — 192 wells, median 84 ft
Kansas (44841) — 188 wells, median 67 ft
Old Fort (44861) — 133 wells, median 89 ft
Attica (44807) — 98 wells, median 84 ft
Bettsville (44815) — 89 wells, median 85 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.