Iowa Well Data › Winneshiek County

Winneshiek County, Iowa: well depth, owners & drilling cost

Name: Winneshiek County, Iowa water well statistics
Creator: Iowa Well Data
License: https://creativecommons.org/licenses/by/4.0/

✓ 3,977 Iowa DNR records · verified 2026-10-19

240 ftmedian well depth

144 ft–355 fttypical depth range

380 ftmedian depth since 2016

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How deep are wells in Winneshiek County, Iowa?

The median drilled well depth in Winneshiek County is 240 ft, based on 3,673 wells with recorded depths in the state Iowa DNR database. Half of all wells fall between 144 ft and 355 ft; 90% are shallower than 460 ft. Wells drilled since 2016 have a median depth of 380 ft.

How much does it cost to drill a well in Winneshiek County?

Applying published per-foot rates to the local median depth of 380 ft: drilling and casing alone typically runs $9,500–$24,700; a complete system including pump, pressure tank, and hookup typically runs $22,800–$38,000. Actual quotes depend on site access, geology, and casing requirements.

Drilled depth distribution

0–50 ft 218 50–100 ft 350 100–150 ft 361 150–200 ft 214 200–300 ft 961 300–400 ft 872 400–600 ft 644 600+ ft 53

Who drills wells in Winneshiek County?

Companies by number of wells completed in this county, per the well records Iowa drillers file with the DNR.

Driller	Wells since 2016
RAAEN,DAVID - 4631	107
ERICKSON,CRAIG - 7918	105
MARTIN,GARY - 3845	15
MANSON,MARK - 11709	4
REA,RICK - 7842	2
HALWEG, JR,DAVID - 10712	2
BRANDENBURG,NEIL - 1610	1
ERICKSON,HARRY - 2366	1

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Well records by ZIP code in Winneshiek County

Median depth, water level, and yield for each ZIP code with recorded wells.

Decorah (52101) — 1,227 wells, median 260 ft
Highlandville (52149) — 666 wells, median 250 ft
Castalia (52133) — 481 wells, median 265 ft
Ossian (52161) — 367 wells, median 285 ft
Ridgeway (52165) — 347 wells, median 200 ft
Calmar (52132) — 222 wells, median 275 ft
Fort Atkinson (52144) — 219 wells, median 200 ft
Spillville (52168) — 149 wells, median 200 ft

Method: 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.