Best well drillers in Union County, Iowa
Not a pay-to-play list: these are the 10 drilling companies with wells on record in Union County, ranked by wells actually drilled here — 567 logged wells in the Iowa DNR Well Information System (IWIS) (records as of 2026-10-19). Every number links back to the public record.
| # | Company | In Union Co. since 2016 | All-time in county | Statewide |
|---|---|---|---|---|
| 1 | * Unknown, - | 8 | 514 | 97,406 |
| 2 | Gingerich,Corwin - 2638 | 1 | 2 | 2,322 |
| 3 | Rewerts Well Co. Inc. | — | 19 | 432 |
| 4 | Mcnaught,Clinton - 40248 | — | 15 | 25 |
| 5 | Huff,Larry - 3144 | — | 5 | 114 |
| 6 | Huff,Larry - 40030 | — | 4 | 236 |
| 7 | Carey,James - 8244 | — | 3 | 162 |
| 8 | * Owner, - | — | 3 | 734 |
| 9 | Banks,Roger - 40105 | — | 1 | 236 |
| 10 | Joslyn,Jeffrey - 3331 | — | 1 | 38 |
Ranked by wells drilled in Union 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 Union County?
* Unknown, - has drilled the most Union County wells in the recent record — 8 since 2016, 514 in the county all-time.
How many well drilling companies work in Union County?
10 companies in the Iowa DNR record have drilled wells in Union County; 4 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 Union County?
The median drilled depth in Union County is 28 ft, based on 912 recorded wells. Depths, water levels, and yields are on the Union County wells page.
Well depths, static water levels, tested yields, and drilling cost estimates for this county live on the Union County wells page.
Free. Goes to licensed drillers working Union County.
Drill in Union County?
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Claim your profileFree to claim · built from Iowa DNR public well-log records.