⟁ Iowa Well Data field records · 2026 survey

Iowa Well Data › Grundy County

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

✓ 1,253 Iowa DNR records · verified 2026-10-19

170 ftmedian well depth
120 ft–250 fttypical depth range
190 ftmedian depth since 2016

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How deep are wells in Grundy County, Iowa?

The median drilled well depth in Grundy County is 170 ft, based on 1,214 wells with recorded depths in the state Iowa DNR database. Half of all wells fall between 120 ft and 250 ft; 90% are shallower than 350 ft. Wells drilled since 2016 have a median depth of 190 ft.

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

Applying published per-foot rates to the local median depth of 170 ft: drilling and casing alone typically runs $4,250–$11,050; a complete system including pump, pressure tank, and hookup typically runs $10,200–$17,000. Actual quotes depend on site access, geology, and casing requirements.

Drilled depth distribution

0–50 ft 91 50–100 ft 77 100–150 ft 249 150–200 ft 270 200–300 ft 324 300–400 ft 142 400–600 ft 55 600+ ft 6

Who drills wells in Grundy County?

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

DrillerWells since 2016
PIETERS,KEVIN - 454116
MARTIN,GARY - 38453
SHAWVER,GARY - 50661
HALWEG, JR,DAVID - 107121
Shawver Well Co.1
ERICKSON,CRAIG - 79181
LARSON,RILEY - 84161
HALWEG,DAVID - 28141

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Well records by ZIP code in Grundy County

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

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.