⟁ Illinois Well Data field records · 2026 survey

Illinois Well Data › Grundy County › South Wilmington (60474)

South Wilmington, IL (60474): well depth, water level & drilling cost

✓ 77 ISGS records · Grundy County

150 ftmedian well depth
110 ft–290 fttypical depth range
—median static water level
10 gpmmedian yield (31 tests)

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How deep are wells in and around South Wilmington (60474), Illinois?

The median drilled well depth in and around South Wilmington (60474) is 150 ft, based on 73 wells with recorded depths in the state ISGS database. Half fall between 110 ft and 290 ft; 90% are shallower than 900 ft.

How much does it cost to drill a well in and around South Wilmington (60474)?

Applying published per-foot rates to the local median depth of 150 ft: drilling and casing alone typically runs $3,750–$9,750; a complete system including pump, pressure tank, and hookup typically runs $9,000–$15,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around South Wilmington (60474)?

Few static water level measurements are recorded for this area.

Drilled depth distribution

0–50 ft 2 50–100 ft 11 100–150 ft 23 150–200 ft 13 200–300 ft 6 300–400 ft 1 400–600 ft 3 600+ ft 14
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Part of Grundy 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.