Iowa Well Data › Clayton County
Clayton County, Iowa: well depth, owners & drilling cost
✓ 3,914 Iowa DNR records · verified 2026-08-24
How deep are wells in Clayton County, Iowa?
The median drilled well depth in Clayton County is 200 ft, based on 3,676 wells with recorded depths in the state Iowa DNR database. Half of all wells fall between 113 ft and 350 ft; 90% are shallower than 510 ft. Wells drilled since 2016 have a median depth of 375 ft.
How much does it cost to drill a well in Clayton County?
Applying published per-foot rates to the local median depth of 375 ft: drilling and casing alone typically runs $9,375–$24,375; a complete system including pump, pressure tank, and hookup typically runs $22,500–$37,500. Actual quotes depend on site access, geology, and casing requirements.
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Drilled depth distribution
Who drills wells in Clayton County?
Companies by number of wells completed in this county, per the well records Iowa drillers file with the DNR.
See every driller with wells on record in Clayton County, ranked →
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See every recorded well near any address — depths, owners, drillers, original state well records — in a one-time report.
Free lookup Property report — $29Method: medians computed from Iowa DNR records (Iowa DNR Well Information System records, water-supply wells only (monitoring, test, dewatering, injection and closed-loop geothermal wells excluded); depths 0-5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.