Illinois Well Data field records · 2026 survey

Illinois Well Data › Dewitt County

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

✓ 1,368 ISGS records · verified 2026-08-20

151 ftmedian well depth
79 ft–268 fttypical depth range
14 gpmmedian yield (1,069 tests)

How deep are wells in Dewitt County, Illinois?

The median drilled well depth in Dewitt County is 151 ft, based on 1,356 wells with recorded depths in the state ISGS database. Half of all wells fall between 79 ft and 268 ft; 90% are shallower than 320 ft. Wells drilled since 2016 have a median depth of 197 ft.

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

Applying published per-foot rates to the local median depth of 197 ft: drilling and casing alone typically runs $4,925–$12,805; a complete system including pump, pressure tank, and hookup typically runs $11,820–$19,700. Actual quotes depend on site access, geology, and casing requirements.

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What is the static water level in Dewitt County?

Few static water level measurements are recorded for this county.

How much water do wells in Dewitt County produce?

The median tested yield is 14 gpm (middle half: 8 gpm–20 gpm), from 1,069 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 85 50–100 ft 398 100–150 ft 190 150–200 ft 185 200–300 ft 310 300–400 ft 186 400–600 ft 1 600+ ft 1

Who drills wells in Dewitt 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
Parrott, Cody31
Layten, Mark J.12
Layten, James8
Mashburn, Robert3
Wiesenhofer, Andrew2
Skinner, Todd2

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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.