Best well drillers in Winneshiek County, Iowa
Not a pay-to-play list: these are the 38 drilling companies with wells on record in Winneshiek County, ranked by wells actually drilled here — 2,821 logged wells in the Iowa DNR Well Information System (IWIS) (records as of 2026-08-24). Every number links back to the public record.
Ranked by wells drilled in Winneshiek County since 2016 (then all-time), from the full Iowa DNR 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 Winneshiek County?
Raaen,David - 4631 has drilled the most Winneshiek County wells in the recent record — 107 since 2016, 163 in the county all-time.
How many well drilling companies work in Winneshiek County?
38 companies in the Iowa DNR record have drilled wells in Winneshiek County; 10 of them have drilled somewhere in Iowa since 2022. Smaller operators below the record threshold may also serve the area.
How deep is a typical well in Winneshiek County?
The median drilled depth in Winneshiek County is 240 ft, based on 3,971 recorded wells. Depths, water levels, and yields are on the Winneshiek County wells page.
Well depths, static water levels, tested yields, and drilling cost estimates for this county live on the Winneshiek County wells page.
Free for property owners. We route your request only to licensed drillers who actually file well logs in Winneshiek County — never sold elsewhere.
Drill in Winneshiek County?
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Claim your profileFree to claim · built from Iowa DNR public well-log records.