Illinois Well Data › Carroll County
Carroll County, Illinois: well depth, yield & drilling cost
✓ 1,902 ISGS records · verified 2026-08-20
How deep are wells in Carroll County, Illinois?
The median drilled well depth in Carroll County is 240 ft, based on 1,859 wells with recorded depths in the state ISGS database. Half of all wells fall between 170 ft and 329 ft; 90% are shallower than 410 ft. Wells drilled since 2016 have a median depth of 298 ft.
How much does it cost to drill a well in Carroll County?
Applying published per-foot rates to the local median depth of 298 ft: drilling and casing alone typically runs $7,450–$19,370; a complete system including pump, pressure tank, and hookup typically runs $17,880–$29,800. Actual quotes depend on site access, geology, and casing requirements.
Free for property owners. We route your request only to licensed drillers who actually file well logs in Carroll County — never sold elsewhere.
What is the static water level in Carroll County?
Few static water level measurements are recorded for this county.
How much water do wells in Carroll County produce?
The median tested yield is 20 gpm (middle half: 15 gpm–25 gpm), from 1,041 pump tests. A typical household needs 5–10 gpm.
Pull every recorded well near a Carroll County address — $29
Drilled depth distribution
Who drills wells in Carroll 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 |
|---|---|
| Thompson, John J. | 11 |
| Lyons, Larry | 9 |
| White, Matt | 8 |
| Thompson, John | 8 |
| Bull Well Drilling Inc | 5 |
| Stoll, Austen | 4 |
| Roop, Randy/Jonas Martin Drlg. | 3 |
| Shawn N Lyons | 3 |
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Free lookup Property report — $29Method: 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.