Wisconsin Well Data › Grant County
Grant County, Wisconsin: well depth, water level & drilling cost
✓ 7,413 WI DNR records · verified 2026-09-28
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How deep are wells in Grant County, Wisconsin?
The median drilled well depth in Grant County is 240 ft, based on 3,572 wells with recorded depths in the state WI DNR database. Half of all wells fall between 145 ft and 325 ft; 90% are shallower than 400 ft. Wells drilled since 2016 have a median depth of 262 ft.
How much does it cost to drill a well in Grant County?
Applying published per-foot rates to the local median depth of 262 ft: drilling and casing alone typically runs $6,550–$17,030; a complete system including pump, pressure tank, and hookup typically runs $15,720–$26,200. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Grant County?
The median static water level is 134 ft below ground surface (middle half of wells: 57 ft–212 ft), from 3,533 measurements.
How much water do wells in Grant County produce?
The median tested yield is 15 gpm (middle half: 10 gpm–20 gpm), from 3,455 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Grant County?
Companies by number of wells completed in this county since 2016, per filed well construction reports (Wisconsin DNR).
| Driller | Wells since 2016 |
|---|---|
| FAHERTY, JEFFERY A | 410 |
| SAM'S WELL DRILLING INC | 209 |
| CORPIAN WELL DRILLING INC | 88 |
| KOUBA DRILLING LLC | 75 |
| RODAMAKER, ROBERT J | 32 |
| LOVELACE WELL DRILLING INC | 12 |
| SAM'S WELL DRILLING | 8 |
| NIFFENEGGER WELL & PUMP INC | 7 |
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Well records by ZIP code in Grant County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Platteville (53818) — 1,053 wells, median 233 ft
- Lancaster (53813) — 588 wells, median 280 ft
- Potosi (53820) — 555 wells, median 280 ft
- Boscobel (53805) — 509 wells, median 143 ft
- Fennimore (53809) — 484 wells, median 300 ft
- Beetown (53802) — 369 wells, median 245 ft
- Kieler (53812) — 358 wells, median 310 ft
- Cuba City (53807) — 353 wells, median 191 ft
- Stitzer (53825) — 349 wells, median 260 ft
- Montfort (53569) — 280 wells, median 293 ft
- Dickeyville (53808) — 277 wells, median 278 ft
- Glen Haven (53810) — 265 wells, median 240 ft
- Mount Hope (53816) — 232 wells, median 280 ft
- Woodman (53827) — 232 wells, median 200 ft
- Cassville (53806) — 231 wells, median 240 ft
- Livingston (53554) — 230 wells, median 240 ft
- Bagley (53801) — 188 wells, median 220 ft
- Bloomington (53804) — 178 wells, median 260 ft
- Patch Grove (53817) — 178 wells, median 260 ft
- Sinsinawa (53824) — 172 wells, median 302 ft
- Hazel Green (53811) — 118 wells, median 161 ft
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.