⟁ Wisconsin Well Data field records · 2026 survey

Wisconsin Well Data › Jefferson County

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

✓ 11,175 WI DNR records · verified 2026-06-30

142 ftmedian well depth
105 ft–178 fttypical depth range
29 ftmedian static water level
20 gpmmedian yield (6,104 tests)

How deep are wells in Jefferson County, Wisconsin?

The median drilled well depth in Jefferson County is 142 ft, based on 6,361 wells with recorded depths in the state WI DNR database. Half of all wells fall between 105 ft and 178 ft; 90% are shallower than 218 ft. Wells drilled since 2016 have a median depth of 137 ft.

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

Applying published per-foot rates to the local median depth of 137 ft: drilling and casing alone typically runs $3,425–$8,905; a complete system including pump, pressure tank, and hookup typically runs $8,220–$13,700. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in Jefferson County?

The median static water level is 29 ft below ground surface (middle half of wells: 15 ft–45 ft), from 6,312 measurements.

How much water do wells in Jefferson County produce?

The median tested yield is 20 gpm (middle half: 20 gpm–25 gpm), from 6,104 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 159 50–100 ft 961 100–150 ft 2,717 150–200 ft 1,534 200–300 ft 900 300–400 ft 65 400–600 ft 20 600+ ft 5

Who drills wells in Jefferson 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 INC775
HERR WELL DRILLING INC147
ROSCHI BROS WELL DRLG & PUMP INC46
SAM'S WELL DRILLING45
D & D WELL & PUMPS LLC27
4-D WATER WELL & PUMP SERVICE LLC20
KRIZAN, KENNETH J12
GEHRING, LANCE M11

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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.