⟁ Illinois Well Data field records · 2026 survey

Illinois Well Data › Knox County › Henderson (61439)

Henderson, IL (61439): well depth, water level & drilling cost

✓ 188 ISGS records · Knox County

145 ftmedian well depth
120 ft–465 fttypical depth range
—median static water level
10 gpmmedian yield (172 tests)

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How deep are wells in and around Henderson (61439), Illinois?

The median drilled well depth in and around Henderson (61439) is 145 ft, based on 188 wells with recorded depths in the state ISGS database. Half fall between 120 ft and 465 ft; 90% are shallower than 531 ft.

How much does it cost to drill a well in and around Henderson (61439)?

Applying published per-foot rates to the local median depth of 145 ft: drilling and casing alone typically runs $3,625–$9,425; a complete system including pump, pressure tank, and hookup typically runs $8,700–$14,500. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Henderson (61439)?

Few static water level measurements are recorded for this area.

Drilled depth distribution

0–50 ft 3 50–100 ft 25 100–150 ft 67 150–200 ft 22 200–300 ft 12 300–400 ft 3 400–600 ft 48 600+ ft 8
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Part of Knox County well records.

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), grouped by ZIP from the recorded address. Cost estimate applies published per-foot ranges to the local median depth — full methodology & sources.