Best well drillers in Jo Daviess County, Illinois
Not a pay-to-play list: these are the 60 drilling companies with wells on record in Jo Daviess County, ranked by wells actually drilled here — 2,343 logged wells in the Illinois State Geological Survey water well records (records as of 2026-08-20). Every number links back to the public record.
Ranked by wells drilled in Jo Daviess County since 2016 (then all-time), from the full ISGS record. A ★ marks a featured sponsor — sponsors must appear in the county record to be listed, and the ranking below them is never reordered.
Who drills the most wells in Jo Daviess County?
Thompson, John J. has drilled the most Jo Daviess County wells in the recent record — 73 since 2016, 294 in the county all-time.
How many well drilling companies work in Jo Daviess County?
60 companies in the ISGS record have drilled wells in Jo Daviess County; 10 of them have drilled somewhere in Illinois since 2022. Smaller operators below the record threshold may also serve the area.
How deep is a typical well in Jo Daviess County?
The median drilled depth in Jo Daviess County is 220 ft, based on 2,914 recorded wells. Depths, water levels, and yields are on the Jo Daviess County wells page.
Well depths, static water levels, tested yields, and drilling cost estimates for this county live on the Jo Daviess County wells page.
Free for property owners. We route your request only to licensed drillers who actually file well logs in Jo Daviess County — never sold elsewhere.
Drill in Jo Daviess County?
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Claim your profileFree to claim · built from ISGS public well-log records.