Illinois Well Data › Henderson County
Henderson County, Illinois: well depth, yield & drilling cost
✓ 921 ISGS records · verified 2026-10-12
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How deep are wells in Henderson County, Illinois?
The median drilled well depth in Henderson County is 117 ft, based on 898 wells with recorded depths in the state ISGS database. Half of all wells fall between 81 ft and 180 ft; 90% are shallower than 251 ft. Wells drilled since 2016 have a median depth of 120 ft.
How much does it cost to drill a well in Henderson County?
Applying published per-foot rates to the local median depth of 117 ft: drilling and casing alone typically runs $2,925–$7,605; a complete system including pump, pressure tank, and hookup typically runs $7,020–$11,700. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Henderson County?
Few static water level measurements are recorded for this county.
How much water do wells in Henderson County produce?
The median tested yield is 20 gpm (middle half: 10 gpm–40 gpm), from 719 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Henderson 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 | 26 |
| Gingerich, Corwin | 18 |
| Tracy A McConnel | 4 |
| Gelement, Val | 3 |
| Henry, John | 1 |
| Stoll, Austen | 1 |
| Ray Francis | 1 |
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Well records by ZIP code in Henderson County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Oquawka (61469) — 173 wells, median 98 ft
- Gladstone (61437) — 140 wells, median 95 ft
- Biggsville (61418) — 125 wells, median 191 ft
- Carman (61425) — 103 wells, median 97 ft
- Lomax (61454) — 84 wells, median 142 ft
- Stronghurst (61480) — 82 wells, median 128 ft
- Raritan (61471) — 62 wells, median 209 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.