Minnesota Well Data field records · 2026 survey

Minnesota Well Data › Rock County

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

✓ 265 CWI records · verified 2026-06-29

212 ftmedian well depth
60 ft–309 fttypical depth range
41 ftmedian static water level
25 gpmmedian yield (204 tests)

How deep are wells in Rock County, Minnesota?

The median drilled well depth in Rock County is 212 ft, based on 264 wells with recorded depths in the state CWI database. Half of all wells fall between 60 ft and 309 ft; 90% are shallower than 405 ft. Wells drilled since 2016 have a median depth of 281 ft.

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

Applying published per-foot rates to the local median depth of 281 ft: drilling and casing alone typically runs $7,025–$18,265; a complete system including pump, pressure tank, and hookup typically runs $16,860–$28,100. 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 41 ft below ground surface (middle half of wells: 15 ft–80 ft), from 199 measurements.

How much water do wells in Rock County produce?

The median tested yield is 25 gpm (middle half: 13 gpm–40 gpm), from 204 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 53 50–100 ft 28 100–150 ft 24 150–200 ft 21 200–300 ft 67 300–400 ft 41 400–600 ft 19 600+ ft 11

Who drills wells in Rock County?

Drillers by number of wells completed in this county since 2016, per filed well records (Minnesota County Well Index).

DrillerWells since 2016
PINKELMAN, B.6
PINKELMAN, B4
BLOCK, J4
SPARTZ, T3
SPARTZ, T.2
GJERDE, M2
DREXLER, MATT2
ERVIN, B2

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Well records by ZIP code in Rock County

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

Method: medians computed from CWI records (water-supply wells only (domestic, irrigation, public/community supply, commercial, industrial) — monitoring, observation, test, injection, heat-pump and environmental boreholes 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.