⟁ Illinois Well Data field records · 2026 survey

Illinois Well Data › Winnebago County › Rockford (61102)

Rockford, IL (61102): well depth, water level & drilling cost

✓ 656 ISGS records · Winnebago County

145 ftmedian well depth
100 ft–245 fttypical depth range
—median static water level
10 gpmmedian yield (237 tests)

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How deep are wells in and around Rockford (61102), Illinois?

The median drilled well depth in and around Rockford (61102) is 145 ft, based on 639 wells with recorded depths in the state ISGS database. Half fall between 100 ft and 245 ft; 90% are shallower than 300 ft.

How much does it cost to drill a well in and around Rockford (61102)?

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 Rockford (61102)?

Few static water level measurements are recorded for this area.

Drilled depth distribution

0–50 ft 23 50–100 ft 134 100–150 ft 166 150–200 ft 100 200–300 ft 146 300–400 ft 53 400–600 ft 8 600+ ft 9
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Part of Winnebago 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.