⟁ Illinois Well Data field records · 2026 survey

Illinois Well Data › Alexander County

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

✓ 425 ISGS records · verified 2026-08-20

115 ftmedian well depth
83 ft–190 fttypical depth range
15 gpmmedian yield (242 tests)

How deep are wells in Alexander County, Illinois?

The median drilled well depth in Alexander County is 115 ft, based on 407 wells with recorded depths in the state ISGS database. Half of all wells fall between 83 ft and 190 ft; 90% are shallower than 320 ft. Wells drilled since 2016 have a median depth of 102 ft.

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

Applying published per-foot rates to the local median depth of 102 ft: drilling and casing alone typically runs $2,550–$6,630; a complete system including pump, pressure tank, and hookup typically runs $6,120–$10,200. Actual quotes depend on site access, geology, and casing requirements.

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What is the static water level in Alexander County?

Few static water level measurements are recorded for this county.

How much water do wells in Alexander County produce?

The median tested yield is 15 gpm (middle half: 10 gpm–50 gpm), from 242 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 34 50–100 ft 108 100–150 ft 124 150–200 ft 40 200–300 ft 51 300–400 ft 24 400–600 ft 15 600+ ft 11

Who drills wells in Alexander 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
Beanland, Glen8
Horman, Paul6
Gregory Horman6
Beanland, Leonard Ralph4

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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.