⟁ Wisconsin Well Data field records · 2026 survey

Wisconsin Well Data › Rock County

Rock County, Wisconsin: well depth, water level & drilling cost

✓ 14,048 WI DNR records · verified 2026-06-30

140 ftmedian well depth
100 ft–177 fttypical depth range
50 ftmedian static water level
20 gpmmedian yield (6,176 tests)

How deep are wells in Rock County, Wisconsin?

The median drilled well depth in Rock County is 140 ft, based on 6,334 wells with recorded depths in the state WI DNR database. Half of all wells fall between 100 ft and 177 ft; 90% are shallower than 210 ft. Wells drilled since 2016 have a median depth of 143 ft.

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

Applying published per-foot rates to the local median depth of 143 ft: drilling and casing alone typically runs $3,575–$9,295; a complete system including pump, pressure tank, and hookup typically runs $8,580–$14,300. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in Rock County?

The median static water level is 50 ft below ground surface (middle half of wells: 30 ft–80 ft), from 6,260 measurements.

How much water do wells in Rock County produce?

The median tested yield is 20 gpm (middle half: 15 gpm–25 gpm), from 6,176 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 124 50–100 ft 1,351 100–150 ft 2,305 150–200 ft 1,576 200–300 ft 906 300–400 ft 58 400–600 ft 8 600+ ft 6

Who drills wells in Rock County?

Companies by number of wells completed in this county since 2016, per filed well construction reports (Wisconsin DNR).

DrillerWells since 2016
SAM'S WELL DRILLING INC834
BLOYER WELL & PUMP CO INC144
ANHALT WELL DRLG & PUMP INC111
SAM'S WELL DRILLING89
MARTIN, CHARLES WADE32
KRIZAN, KENNETH J5
HERR WELL DRILLING INC3
CHARLES WADE MARTIN3

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Looking at a specific property in Rock County?

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Method: medians computed from WI DNR records (drilled water wells (well-construction reports) — geothermal loop/heat-exchange, anode, test and dry holes 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.