Buying Land in Calumet County, Wisconsin

Zoning: three different tracks depending on the town

The Calumet County Planning, Zoning and Land Information Department (206 Court Street, Chilton, WI 53014; 920-849-1442) administers the county's Chapter 82 Zoning Ordinance, which covers the towns of Brillion, Charlestown, New Holstein, and Woodville, using districts that range from Exclusive Agricultural and General Agricultural through several residential tiers to commercial and industrial classifications. But that's only part of the county: the towns of Brothertown, Chilton, Harrison, and Rantoul have each adopted their own separate town zoning ordinances -- administered by the town itself, not the county -- and the Town of Stockbridge has no general zoning ordinance in place at all. That means the same due-diligence question ("what can I build, and where?") can route to three entirely different offices depending on which of the county's nine towns a parcel sits in, and a rezoning or conditional-use process that's routine in a county-zoned town may work very differently in a self-zoned one.

The Planning department also handles farmland-preservation zoning, land division, and comprehensive planning assistance, and is the right first call to confirm which zoning track applies to a specific parcel before assuming a use is (or isn't) permitted.

Shoreland zoning: the layer that follows Lake Winnebago, not the town line

Calumet County's Chapter 52 Shoreland Zoning Ordinance implements the statewide NR 115 minimum standards within 1,000 feet of the ordinary high-water mark of Lake Winnebago -- Wisconsin's largest inland lake, and the dominant geographic feature along the county's western edge -- or another navigable lake, and within 300 feet of a river or stream. It sets a 75-foot baseline building setback from the water along with development and vegetation-removal limits. Because Wisconsin law does not let a town opt out of county shoreland zoning the way it can opt out of general zoning, this ordinance applies uniformly in every one of the county's towns, including Brothertown, Chilton, Harrison, Rantoul, and Stockbridge even though those towns handle (or don't handle) general zoning on their own. Any Lake Winnebago-adjacent or near-water parcel should be checked against Chapter 52 regardless of which general-zoning track governs the underlying town.

Karst geology and well water: a documented, above-average contamination risk

Calumet County sits within the Silurian dolomite karst belt that also covers Kewaunee, Door, Brown, and Manitowoc counties in northeast Wisconsin -- an area where soils over the bedrock are often thin (in places, less than 20 feet, and in the most vulnerable spots less than 5 feet) and the underlying rock is fractured enough that surface water, and whatever is on the surface with it, can reach the aquifer in a matter of hours to a few days rather than being filtered gradually. That combination has produced well-documented private-well contamination problems region-wide, particularly from livestock manure application, and Calumet County has run its own targeted performance standards restricting manure spreading in identified karst and shallow-soil areas since July 1, 2018 (administered by the county's Land and Water Conservation Department, 920-849-1493). See our dedicated well-water page for this county for what this means in practice for a private well and for keeping livestock on karst-vulnerable ground.

Septic, GIS, and where to check parcel records

Onsite wastewater (POWTS) permitting runs under Chapter 74 of the county code, with sanitary-permit and soil-test applications handled by the Planning, Zoning and Land Information Department (920-849-1442) and general environmental-health questions handled by Calumet County Environmental Health (920-849-1400). The county's Land Information Office, in the same courthouse building, coordinates GIS mapping and land records for the county.

For parcel research, the Calumet County Register of Deeds (920-849-1441) and Treasurer (920-849-1444) are both at 206 Court Street, Chilton, and Extension Calumet County (920-849-1450) offers agricultural, dairy, and farmland-preservation programming relevant to the county's working dairy-farm base.