Can you drill a well without a permit in Wisconsin?

Exempt — no permit or water right. Reasonable-use rule with a DNR high-capacity-well overlay (Wis. Stat. 281.34). Residential wells are statutorily excluded from the 'high capacity well' definition, so a household well needs no DNR withdrawal approval (NR 812 construction code still applies).

Which Wisconsin counties have groundwater restrictions?

10 Wisconsin counties sit in a managed, over-appropriated, adjudicated, or critically overdrafted groundwater basin — including Brown County, Waukesha County, Adams County, Marathon County, Marquette County. Each county profile cites the specific basin and rule.

Wisconsin · off-grid water rights

Water rights in Wisconsin

Whether a new off-grid home can legally get its own water in Wisconsin: the state well and water-rights rules, then the 10 counties where a specific groundwater basin adds a catch — each cited to the state water agency.

Wisconsin water rules

Household well
Exempt — no permit or water right
Reasonable-use rule with a DNR high-capacity-well overlay (Wis. Stat. 281.34). Residential wells are statutorily excluded from the 'high capacity well' definition, so a household well needs no DNR withdrawal approval (NR 812 construction code still applies).
Limit: household wells exempt; only 'high capacity' wells (>100,000 gpd) need DNR approval
Wisconsin DNR — High Capacity Wells ↗
Greywater reuse
permitted
Reuse standards based on end use; approval required.
Greywater Action / EPA REUSExplorer ↗
Rainwater harvesting
unrestricted
Legal for non-potable outdoor; tank not connected to public supply.
NCSL ↗
Water rights
regulated riparian
Reporting + GW permits above 100,000 gpd; domestic exempt.
National Agricultural Law Center ↗

10 constrained counties in Wisconsin

Over-appropriatedBrown CountyNortheastern Wisconsin (Lower Fox / Brown County) Groundwater Management Area29
Over-appropriatedWaukesha CountySoutheastern Wisconsin Groundwater Management Area (Waukesha)35
Actively managedAdams CountyCentral Sands region (high-capacity-well constraint)59
Actively managedMarathon CountyCentral Sands region (high-capacity-well constraint)60
Actively managedMarquette CountyCentral Sands region (high-capacity-well constraint)59
Actively managedPortage CountyCentral Sands region (high-capacity-well constraint)59
Actively managedShawano CountyCentral Sands region (high-capacity-well constraint)56
Actively managedWaupaca CountyCentral Sands region (high-capacity-well constraint)59
Actively managedWaushara CountyCentral Sands region (high-capacity-well constraint)62
Actively managedWood CountyCentral Sands region (high-capacity-well constraint)62

The Bolthole Index Letter

One email a week: the best counties to live off-grid, rule changes that matter, and Wisconsin water-rule changes as basins close. No spam, unsubscribe anytime.

Keep exploring Wisconsin

See the full Wisconsin county ranking, compare states on the water-rights hub, or read how water access is scored. Physical water is dimmed — never erased — where a county sits in one of these basins, household-first.

General guidance, not legal advice. Off-grid, building, and land-use rules are often set at the county level and change often. Verify with your county and state before acting. Data reviewed 2026-06-26.