⟁ Illinois Well Data field records · 2026 survey

Illinois Well Data › Hamilton County

Hamilton County, Illinois: well depth, yield & drilling cost

✓ 166 ISGS records · verified 2026-08-20

298 ftmedian well depth
160 ft–377 fttypical depth range
9 gpmmedian yield (91 tests)

How deep are wells in Hamilton County, Illinois?

The median drilled well depth in Hamilton County is 298 ft, based on 164 wells with recorded depths in the state ISGS database. Half of all wells fall between 160 ft and 377 ft; 90% are shallower than 1,673 ft. Wells drilled since 2016 have a median depth of 355 ft.

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

Applying published per-foot rates to the local median depth of 355 ft: drilling and casing alone typically runs $8,875–$23,075; a complete system including pump, pressure tank, and hookup typically runs $21,300–$35,500. Actual quotes depend on site access, geology, and casing requirements.

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What is the static water level in Hamilton County?

Few static water level measurements are recorded for this county.

How much water do wells in Hamilton County produce?

The median tested yield is 9 gpm (middle half: 7 gpm–10 gpm), from 91 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 14 50–100 ft 11 100–150 ft 13 150–200 ft 15 200–300 ft 34 300–400 ft 43 400–600 ft 13 600+ ft 21

Who drills wells in Hamilton County?

Companies and licensed drillers by number of wells logged in this county, per records filed with the Illinois State Geological Survey.

DrillerWells since 2016
Greg A. Evans2
Beanland, Glen1
Scates, Stephen T.1

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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.