Illinois Well Data › Monroe County
Monroe County, Illinois: well depth, yield & drilling cost
✓ 3,046 ISGS records · verified 2026-10-12
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How deep are wells in Monroe County, Illinois?
The median drilled well depth in Monroe County is 206 ft, based on 3,042 wells with recorded depths in the state ISGS database. Half of all wells fall between 133 ft and 354 ft; 90% are shallower than 465 ft. Wells drilled since 2016 have a median depth of 158 ft.
How much does it cost to drill a well in Monroe County?
Applying published per-foot rates to the local median depth of 158 ft: drilling and casing alone typically runs $3,950–$10,270; a complete system including pump, pressure tank, and hookup typically runs $9,480–$15,800. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Monroe County?
Few static water level measurements are recorded for this county.
How much water do wells in Monroe County produce?
The median tested yield is 12 gpm (middle half: 3 gpm–25 gpm), from 2,050 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Monroe 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 | 45 |
| Dohrman, Dale Raymond | 42 |
| Harriss, Chuck | 30 |
| Beckett, Donald | 22 |
| Gregory Horman | 17 |
| Greg A. Evans | 13 |
| D & S Drillling | 6 |
| Ray Mueller | 6 |
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Well records by ZIP code in Monroe County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Maeystown (62256) — 614 wells, median 181 ft
- Waterloo (62298) — 611 wells, median 169 ft
- Columbia (62236) — 607 wells, median 354 ft
- Hecker (62248) — 570 wells, median 226 ft
- Renault (62279) — 237 wells, median 301 ft
- Valmeyer (62295) — 219 wells, median 89 ft
- Fults (62244) — 180 wells, median 313 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.