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.

Wisconsin drawn from 872,087 water wells; brightness shows well density and color shows typical well depth
Shallow Mid DeepBrightness = well density

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.

0 ft200 ft400 ft600 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.

CountyWellsMedian depthWater levelYield
Waukesha66,575149 ft42 ft22 gpm
Dane31,208180 ft55 ft23 gpm
Marathon28,231141 ft18 ft9 gpm
Milwaukee25,992179 ft69 ft20 gpm
Washington23,048170 ft44 ft20 gpm
Walworth21,51198 ft39 ft17 gpm
Oneida21,35965 ft23 ft15 gpm
Racine19,925124 ft35 ft21 gpm
Kenosha18,550116 ft42 ft16 gpm
Vilas17,77264 ft22 ft17 gpm
Winnebago17,424148 ft25 ft25 gpm
Chippewa17,16370 ft30 ft15 gpm
Outagamie17,072169 ft53 ft30 gpm
Brown17,008187 ft48 ft32 gpm
St. Croix16,862162 ft91 ft14 gpm
Oconto16,713108 ft23 ft21 gpm
Door15,819243 ft39 ft18 gpm
Adams15,19164 ft25 ft16 gpm
Rock15,107142 ft52 ft22 gpm
Fond du Lac14,875166 ft42 ft19 gpm
Portage14,07579 ft26 ft18 gpm
Marinette14,011113 ft25 ft16 gpm
Ozaukee13,916189 ft43 ft18 gpm
Dodge13,820148 ft38 ft21 gpm
Sheboygan13,765178 ft37 ft20 gpm
Waupaca13,52097 ft23 ft21 gpm
Wood13,37661 ft16 ft15 gpm
Polk13,290109 ft43 ft14 gpm
Barron12,98281 ft32 ft17 gpm
Waushara12,938101 ft28 ft24 gpm
Eau Claire12,57295 ft42 ft16 gpm
Sauk12,199142 ft55 ft19 gpm
Sawyer12,18379 ft25 ft13 gpm
Jefferson12,113143 ft30 ft24 gpm
Columbia11,429148 ft34 ft22 gpm
Manitowoc11,120148 ft35 ft25 gpm
Shawano9,970122 ft23 ft20 gpm
Dunn9,640107 ft49 ft16 gpm
Burnett9,59091 ft28 ft20 gpm
La Crosse9,590107 ft48 ft14 gpm
Lincoln9,49573 ft23 ft12 gpm
Washburn8,71886 ft35 ft15 gpm
Monroe8,640100 ft41 ft14 gpm
Clark8,59895 ft20 ft10 gpm
Langlade8,16369 ft27 ft19 gpm
Juneau8,00368 ft15 ft19 gpm
Marquette7,995114 ft23 ft20 gpm
Grant7,857241 ft134 ft17 gpm
Bayfield7,41898 ft39 ft12 gpm
Green7,194174 ft70 ft21 gpm
Douglas7,026128 ft28 ft13 gpm
Trempealeau6,655103 ft49 ft14 gpm
Price6,62271 ft19 ft10 gpm
Taylor6,42194 ft17 ft8 gpm
Green Lake6,257145 ft34 ft22 gpm
Jackson6,22681 ft32 ft13 gpm
Rusk6,20563 ft22 ft12 gpm
Pierce6,087206 ft133 ft14 gpm
Vernon5,713213 ft137 ft14 gpm
Iowa5,593224 ft121 ft21 gpm
Forest5,49869 ft24 ft15 gpm
Calumet4,972176 ft47 ft22 gpm
Kewaunee4,747162 ft31 ft24 gpm
Buffalo4,28894 ft40 ft16 gpm
Richland4,245142 ft59 ft14 gpm
Lafayette3,781224 ft105 ft21 gpm
Crawford3,250202 ft148 ft14 gpm
Florence3,03685 ft31 ft14 gpm
Ashland2,997114 ft28 ft11 gpm
Iron2,82781 ft19 ft14 gpm
Pepin2,034120 ft60 ft14 gpm
Menominee1,61663 ft20 ft18 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
drillerdb.com/well-map
DrillerDB interactive water-well depth 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:

1930s
1940s
1950s
1960s
1970s
1980s
1990s
2000s
2010s
2020s

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