Illinois Well Data › Randolph County
Randolph County, Illinois: well depth, yield & drilling cost
✓ 2,457 ISGS records · verified 2026-10-12
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How deep are wells in Randolph County, Illinois?
The median drilled well depth in Randolph County is 76 ft, based on 2,423 wells with recorded depths in the state ISGS database. Half of all wells fall between 39 ft and 225 ft; 90% are shallower than 320 ft. Wells drilled since 2016 have a median depth of 178 ft.
How much does it cost to drill a well in Randolph County?
Applying published per-foot rates to the local median depth of 76 ft: drilling and casing alone typically runs $1,900–$4,940; a complete system including pump, pressure tank, and hookup typically runs $4,560–$7,600. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Randolph County?
Few static water level measurements are recorded for this county.
How much water do wells in Randolph County produce?
The median tested yield is 15 gpm (middle half: 5 gpm–30 gpm), from 767 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Randolph County?
Companies and licensed drillers by number of wells logged in this county, per records filed with the Illinois State Geological Survey.
| Driller | Wells since 2016 |
|---|---|
| Haake, Ralph | 28 |
| Harriss, Chuck | 24 |
| Gebke, Randy | 10 |
| Beckett, Donald | 8 |
| Ray Mueller | 5 |
| Greg A. Evans | 4 |
| Dohrman, Dale Raymond | 4 |
| Durbin, Dominique | 2 |
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Well records by ZIP code in Randolph County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Red Bud (62278) — 621 wells, median 202 ft
- Steeleville (62288) — 406 wells, median 141 ft
- Sparta (62286) — 357 wells, median 37 ft
- Baldwin (62217) — 286 wells, median 50 ft
- Walsh (62297) — 204 wells, median 49 ft
- Modoc (62261) — 154 wells, median 229 ft
- Evansville (62242) — 154 wells, median 81 ft
- Coulterville (62237) — 120 wells, median 40 ft
- Ellis Grove (62241) — 96 wells, median 120 ft
- Prairie Du Rocher (62277) — 96 wells, median 211 ft
- Chester (62233) — 82 wells, median 100 ft
- Percy (62272) — 50 wells, median 295 ft
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.