WisconsinWell Data
Every dot on this map is a real well. We pulled all 872,087 Wisconsin well-construction records - depth, water level, yield, and county - and drew the state with them. Brighter means more wells; color is how deep they go.

121 ft
Median well depth
32 ft
Median water level
18 gpm
Median yield
72
Counties covered
What 872,087 Wisconsin wells tell us
872,087
Wisconsin well records on file
121 ft
Median well depth (half between 70 and 188 ft)
32 ft
Median static water level (water table)
18 gpm
Median tested well yield
58%
Have a recorded depth (509,142 wells)
6,525
Distinct drilling companies on record
The median Wisconsin well is 121 ft deep; the average is a bit higher (about 143 ft), pulled up by a long tail of very deep wells in the Driftless Area and the Door Peninsula. Numbers here come straight from filed well-construction reports - not a model.
How deep Wisconsin wells go
Each bar is the share of wells finished at that depth (20-ft bins). Most Wisconsin wells land between 40 and 200 ft.
Well depth & water by Wisconsin county
All 72 Wisconsin counties, ranked by number of wells on record. Median depth, median static water level, and median tested yield for each - real figures, computed from every filed report we hold.
| County | Wells | Median depth | Water level | Yield |
|---|---|---|---|---|
| Waukesha | 66,575 | 149 ft | 42 ft | 22 gpm |
| Dane | 31,208 | 180 ft | 55 ft | 23 gpm |
| Marathon | 28,231 | 141 ft | 18 ft | 9 gpm |
| Milwaukee | 25,992 | 179 ft | 69 ft | 20 gpm |
| Washington | 23,048 | 170 ft | 44 ft | 20 gpm |
| Walworth | 21,511 | 98 ft | 39 ft | 17 gpm |
| Oneida | 21,359 | 65 ft | 23 ft | 15 gpm |
| Racine | 19,925 | 124 ft | 35 ft | 21 gpm |
| Kenosha | 18,550 | 116 ft | 42 ft | 16 gpm |
| Vilas | 17,772 | 64 ft | 22 ft | 17 gpm |
| Winnebago | 17,424 | 148 ft | 25 ft | 25 gpm |
| Chippewa | 17,163 | 70 ft | 30 ft | 15 gpm |
| Outagamie | 17,072 | 169 ft | 53 ft | 30 gpm |
| Brown | 17,008 | 187 ft | 48 ft | 32 gpm |
| St. Croix | 16,862 | 162 ft | 91 ft | 14 gpm |
| Oconto | 16,713 | 108 ft | 23 ft | 21 gpm |
| Door | 15,819 | 243 ft | 39 ft | 18 gpm |
| Adams | 15,191 | 64 ft | 25 ft | 16 gpm |
| Rock | 15,107 | 142 ft | 52 ft | 22 gpm |
| Fond du Lac | 14,875 | 166 ft | 42 ft | 19 gpm |
| Portage | 14,075 | 79 ft | 26 ft | 18 gpm |
| Marinette | 14,011 | 113 ft | 25 ft | 16 gpm |
| Ozaukee | 13,916 | 189 ft | 43 ft | 18 gpm |
| Dodge | 13,820 | 148 ft | 38 ft | 21 gpm |
| Sheboygan | 13,765 | 178 ft | 37 ft | 20 gpm |
| Waupaca | 13,520 | 97 ft | 23 ft | 21 gpm |
| Wood | 13,376 | 61 ft | 16 ft | 15 gpm |
| Polk | 13,290 | 109 ft | 43 ft | 14 gpm |
| Barron | 12,982 | 81 ft | 32 ft | 17 gpm |
| Waushara | 12,938 | 101 ft | 28 ft | 24 gpm |
| Eau Claire | 12,572 | 95 ft | 42 ft | 16 gpm |
| Sauk | 12,199 | 142 ft | 55 ft | 19 gpm |
| Sawyer | 12,183 | 79 ft | 25 ft | 13 gpm |
| Jefferson | 12,113 | 143 ft | 30 ft | 24 gpm |
| Columbia | 11,429 | 148 ft | 34 ft | 22 gpm |
| Manitowoc | 11,120 | 148 ft | 35 ft | 25 gpm |
| Shawano | 9,970 | 122 ft | 23 ft | 20 gpm |
| Dunn | 9,640 | 107 ft | 49 ft | 16 gpm |
| Burnett | 9,590 | 91 ft | 28 ft | 20 gpm |
| La Crosse | 9,590 | 107 ft | 48 ft | 14 gpm |
| Lincoln | 9,495 | 73 ft | 23 ft | 12 gpm |
| Washburn | 8,718 | 86 ft | 35 ft | 15 gpm |
| Monroe | 8,640 | 100 ft | 41 ft | 14 gpm |
| Clark | 8,598 | 95 ft | 20 ft | 10 gpm |
| Langlade | 8,163 | 69 ft | 27 ft | 19 gpm |
| Juneau | 8,003 | 68 ft | 15 ft | 19 gpm |
| Marquette | 7,995 | 114 ft | 23 ft | 20 gpm |
| Grant | 7,857 | 241 ft | 134 ft | 17 gpm |
| Bayfield | 7,418 | 98 ft | 39 ft | 12 gpm |
| Green | 7,194 | 174 ft | 70 ft | 21 gpm |
| Douglas | 7,026 | 128 ft | 28 ft | 13 gpm |
| Trempealeau | 6,655 | 103 ft | 49 ft | 14 gpm |
| Price | 6,622 | 71 ft | 19 ft | 10 gpm |
| Taylor | 6,421 | 94 ft | 17 ft | 8 gpm |
| Green Lake | 6,257 | 145 ft | 34 ft | 22 gpm |
| Jackson | 6,226 | 81 ft | 32 ft | 13 gpm |
| Rusk | 6,205 | 63 ft | 22 ft | 12 gpm |
| Pierce | 6,087 | 206 ft | 133 ft | 14 gpm |
| Vernon | 5,713 | 213 ft | 137 ft | 14 gpm |
| Iowa | 5,593 | 224 ft | 121 ft | 21 gpm |
| Forest | 5,498 | 69 ft | 24 ft | 15 gpm |
| Calumet | 4,972 | 176 ft | 47 ft | 22 gpm |
| Kewaunee | 4,747 | 162 ft | 31 ft | 24 gpm |
| Buffalo | 4,288 | 94 ft | 40 ft | 16 gpm |
| Richland | 4,245 | 142 ft | 59 ft | 14 gpm |
| Lafayette | 3,781 | 224 ft | 105 ft | 21 gpm |
| Crawford | 3,250 | 202 ft | 148 ft | 14 gpm |
| Florence | 3,036 | 85 ft | 31 ft | 14 gpm |
| Ashland | 2,997 | 114 ft | 28 ft | 11 gpm |
| Iron | 2,827 | 81 ft | 19 ft | 14 gpm |
| Pepin | 2,034 | 120 ft | 60 ft | 14 gpm |
| Menominee | 1,616 | 63 ft | 20 ft | 18 gpm |
Explore every well
The static map above is the whole state at a glance. Open the interactive DrillerDB well map to zoom to any Wisconsin address, click individual wells, and read their depth, water level, and construction details.
Open the well map
A century of Wisconsin wells
Wisconsin has required a well construction report for every new well since 1936, and DrillerDB's records reach back to the 1930s. Wells drilled per decade:
Wisconsin well questions
How deep are wells in Wisconsin?
The median water well in Wisconsin is 121 ft deep, based on 509,142 records with a reported depth. Half of all wells fall between 70 and 188 ft. Depth varies a lot by county - from about 61 ft in the shallowest counties to over 243 ft in the deepest.
What is the water table depth in Wisconsin?
The median static water level (the depth to standing groundwater) across Wisconsin records is about 32 ft. It is usually much shallower than the finished well depth, because wells are drilled past the water table to reach a dependable aquifer.
How many well records does Wisconsin have?
DrillerDB holds 872,087 Wisconsin well records - part of an 18-million-record national database built from state well-construction reports. Wisconsin has required a well construction report for every new well since 1936.
How do I look up a specific address or well in Wisconsin?
Use the free water table depth lookup to see typical depth and water level at any address, or open the interactive well map to browse individual well records near a location.
Source: 872,087 Wisconsin well-construction records in the DrillerDB database, current through June 2026. Medians are computed from reported values; individual wells vary. Always confirm site conditions with a licensed local driller.
Planning a well?
Start with the free address lookup, then find a licensed Wisconsin driller.
Drill wells for a living?
This is the same well data that powers quoting, scheduling, and state reporting for drilling companies across the country.
See DrillerDB for contractors