⟁ Illinois Well Data field records · 2026 survey

Illinois Well Data › Rock Island County › Illinois City (61259)

Illinois City, IL (61259): well depth, water level & drilling cost

✓ 307 ISGS records · Rock Island County

440 ftmedian well depth
335 ft–483 fttypical depth range
—median static water level
35 gpmmedian yield (257 tests)

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How deep are wells in and around Illinois City (61259), Illinois?

The median drilled well depth in and around Illinois City (61259) is 440 ft, based on 298 wells with recorded depths in the state ISGS database. Half fall between 335 ft and 483 ft; 90% are shallower than 502 ft.

How much does it cost to drill a well in and around Illinois City (61259)?

Applying published per-foot rates to the local median depth of 440 ft: drilling and casing alone typically runs $11,000–$28,600; a complete system including pump, pressure tank, and hookup typically runs $26,400–$44,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Illinois City (61259)?

Few static water level measurements are recorded for this area.

Drilled depth distribution

0–50 ft 10 50–100 ft 7 100–150 ft 6 150–200 ft 5 200–300 ft 34 300–400 ft 40 400–600 ft 196 600+ ft 0
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Part of Rock Island 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.