Illinois Well Data › Hancock County
Hancock County, Illinois: well depth, yield & drilling cost
✓ 940 ISGS records · verified 2026-10-12
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How deep are wells in Hancock County, Illinois?
The median drilled well depth in Hancock County is 225 ft, based on 921 wells with recorded depths in the state ISGS database. Half of all wells fall between 145 ft and 280 ft; 90% are shallower than 321 ft. Wells drilled since 2016 have a median depth of 220 ft.
How much does it cost to drill a well in Hancock County?
Applying published per-foot rates to the local median depth of 225 ft: drilling and casing alone typically runs $5,625–$14,625; a complete system including pump, pressure tank, and hookup typically runs $13,500–$22,500. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Hancock County?
Few static water level measurements are recorded for this county.
How much water do wells in Hancock County produce?
The median tested yield is 7 gpm (middle half: 4 gpm–15 gpm), from 769 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Hancock County?
Companies and licensed drillers by number of wells logged in this county, per records filed with the Illinois State Geological Survey.
| Driller | Wells since 2016 |
|---|---|
| Allen, Joseph | 13 |
| Gingerich, Corwin | 5 |
| Bassham, Billy | 4 |
| Gelement, Val | 2 |
| Schmalfeldt, Todd | 2 |
| Darin Cahoy | 1 |
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Well records by ZIP code in Hancock County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Hamilton (62341) — 128 wells, median 202 ft
- Plymouth (62367) — 97 wells, median 160 ft
- Nauvoo (62354) — 89 wells, median 253 ft
- Niota (62358) — 69 wells, median 155 ft
- La Harpe (61450) — 64 wells, median 204 ft
- Sutter (62373) — 62 wells, median 265 ft
- Elvaston (62334) — 61 wells, median 280 ft
- Colusa (62329) — 61 wells, median 244 ft
- Carthage (62321) — 60 wells, median 250 ft
- Bowen (62316) — 52 wells, median 171 ft
Method: medians computed from ISGS records (ISGS water wells; engineering, mineral and stratigraphic test borings, mine shafts, outcrops and monitoring wells are excluded, as are wells the survey records as plugged; depths 0-5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.