US Land Life

Wisconsin

Buying Land in Marathon County, Wisconsin

Marathon County, seat Wausau, is Wisconsin's largest county by land area, built around the Wisconsin River and the state's ginseng-growing heartland. Zoning here is a large-scale, roughly even split between county-zoned and independently town-zoned towns -- and if farmland is the goal, this county's ginseng industry brings a genuinely distinctive land-use story worth understanding on its own.

Zoning Is Split Roughly Evenly Between County and Independent Town Ordinances

Case-by-case / verify locally

Marathon County's Chapter 17 Zoning Ordinance applies only in towns that have adopted it. This research pass confirmed 17 towns under county zoning (Easton, Eau Pleine, Elderon, Frankfort, Green Valley, Guenther, Hewitt, Holton, Hull, Knowlton, Marathon, McMillan, Plover, Reid, Rib Falls, Spencer, Wien) and 13 towns administering their own separate zoning (Bergen, Berlin, Bevent, Cassel, Emmet, Halsey, Mosinee, Rietbrock, Ringle, Stettin, Texas, Wausau [town], Weston) -- but the county cites 42 towns total, so this list may not be fully complete or current. Confirm directly with Marathon County Conservation, Planning & Zoning or the specific town before relying on either general-zoning framework for a parcel.

Wisconsin's Largest County by Area -- Distance and Local Variation Both Matter

Generally favorable

At roughly 1,545 square miles of land, Marathon County is the largest county in Wisconsin by land area. A single set of "county facts" stretches much further here than in a typical Wisconsin county -- terrain, soil, forest cover, and which zoning authority governs can vary meaningfully between the county's northern and southern ends, so treat any county-level generalization (including on this page) as a starting point to confirm against the specific parcel.

The Nation's Ginseng-Growing Epicenter -- a Distinctive Farmland Consideration

Case-by-case / verify locally

Wisconsin grows the large majority of America's cultivated ginseng, and Marathon County grows the large majority of Wisconsin's -- making this county the dominant U.S. ginseng-growing region by a wide margin. If farmland use (ginseng or otherwise) is part of your plan, this comes with its own considerations: ginseng requires artificial or forest shade structures, a state marketing-order registration through the Ginseng Board of Wisconsin, and a multi-year (often decade-plus) replant-disease constraint that limits how soon the same ground can grow ginseng again. See our dedicated farm-land page.

Zoning: a large, roughly even county/town split across 42 towns

Marathon County's Conservation, Planning, and Zoning Department (1100 Lake View Drive, Suite 400, Wausau, WI 54403; (715) 261-6000) administers Chapter 17, the county's Zoning Ordinance -- but, as in the rest of Wisconsin, that authority only reaches towns that have specifically adopted it. This research pass confirmed 17 towns currently under Marathon County zoning (Easton, Eau Pleine, Elderon, Frankfort, Green Valley, Guenther, Hewitt, Holton, Hull, Knowlton, Marathon, McMillan, Plover, Reid, Rib Falls, Spencer, and Wien) and 13 towns administering their own separate general zoning ordinances (Bergen, Berlin, Bevent, Cassel, Emmet, Halsey, Mosinee, Rietbrock, Ringle, Stettin, Texas, the Town of Wausau, and Weston) -- note the Town of Wausau is a separate unit of government from the City of Wausau, the county seat. The county's own materials describe 42 towns total, so this combined list of 30 should be treated as the best-documented picture available from this research pass rather than a guaranteed-complete roster.

Marathon County also has a documented, somewhat unusual withdrawal mechanism: a town may generally only "opt out" of county zoning when the county undertakes a comprehensive revision of the zoning ordinance, done at a minimum of ten-year intervals, at which point the town has up to a year to decide whether to approve the revised ordinance or withdraw. This is a more structured, cyclical process than the simple town-vote withdrawal described in some other Wisconsin counties, and it means a given town's status could plausibly change at the next comprehensive-revision cycle -- one more reason to confirm a specific town's current zoning status directly rather than relying on any list, including this one, indefinitely.

Wisconsin's largest county by area: what that means for due diligence

Marathon County covers roughly 1,545 square miles of land, making it Wisconsin's largest county by land area -- large enough that it spans meaningfully different terrain, soil, and land-use patterns from its northern to southern ends, all built around the Wisconsin River and the city of Wausau near the county's center. That scale is worth keeping in mind specifically because it also means the county/town zoning split above isn't evenly distributed by geography alone -- a parcel's specific town matters more here than in a smaller, more zoning-uniform county.

The nation's ginseng-growing epicenter

Central Wisconsin, and Marathon County specifically, has been the unambiguous center of American cultivated ginseng farming for well over a century. Wisconsin accounts for the large majority of all ginseng grown in the United States, and Marathon County alone grows the large majority of Wisconsin's crop -- a concentration driven by the region's cool summers, long winters, and clean, well-drained soil. Ginseng cultivation here dates to the late 1800s, and the Fromm Brothers Fur and Ginseng Farm in the Town of Hamburg became, by the late 1920s, the world's largest ginseng (and fur) producer -- a piece of the county's agricultural history still recognized today.

For anyone evaluating farmland here with ginseng specifically in mind, see our dedicated farm-land page for the practical details: the shade-structure requirements ginseng cultivation needs, the Ginseng Board of Wisconsin's state marketing-order registration and certification process, and the multi-year replant-disease constraint that means land already used to grow ginseng typically can't grow another ginseng crop again for years, sometimes decades -- a real factor in evaluating whether a specific parcel's agricultural history helps or limits its future use.

Septic, GIS, records, and other departments to know

Marathon County's Conservation, Planning, and Zoning Department (same office as zoning above) also handles POWTS (septic) sanitary permits and site evaluations under the statewide SPS 383 standard. The county's Land Information Office (210 River Drive, Wausau; (715) 261-1940) handles GIS mapping and parcel data; the Register of Deeds (Marathon County Courthouse, 500 Forest Street, Wausau; (715) 261-1470) holds recorded deeds, easements, and plats; the Property Lister ((715) 261-1160) and County Treasurer ((715) 261-1150) handle assessment support and property tax payment, respectively.

Who to Call Before Buying Land in Marathon County

Direct WebFetch access to marathoncounty.gov and library.municode.com was blocked by a network egress restriction throughout this research pass, so department details reflect search-indexed content rather than a full verbatim read of current staff directories or the complete Chapter 17 ordinance text -- confirm current staff, hours, fees, and a specific town's zoning status before relying on this page for a specific parcel. This session's web-search budget was also exhausted before a complete, current roster of all 42 towns' zoning status and a UW-Extension Marathon County phone number could be independently confirmed.

Planning & Zoning

Marathon County Conservation, Planning, and Zoning Department

Zoning district lookups, confirming a specific town's zoning status, rezoning, conditional-use permits, and variances in the county-zoned towns.

Phone: (715) 261-6000Official website →

Building & Permitting

Marathon County Conservation, Planning, and Zoning Department

Land-use and building permit applications in county-zoned towns; contact the specific town directly for the 13+ towns administering their own zoning.

Phone: (715) 261-6000Official website →

Septic / Onsite Wastewater

Marathon County Conservation, Planning, and Zoning Department

POWTS (septic) sanitary permits and soil evaluations under statewide SPS 383 standards.

Phone: (715) 261-6000Official website →

Wells / Private Water

Wisconsin DNR -- Wells Program

Private well construction rules (NR 812) and certified well-driller lookups statewide, including Marathon County.

Phone: (608) 266-1054Official website →

GIS / Parcel Records

Marathon County Land Information Office

Parcel mapping, GIS data, and property/land information countywide.

Phone: (715) 261-1940Official website →

Assessor / Property Tax

Marathon County Treasurer / Property Lister

Property tax payment, records, and assessment support.

Phone: (715) 261-1150Official website →

Recorder / Clerk / Land Records

Marathon County Register of Deeds

Recorded deed, easement, and plat history for a specific parcel.

Phone: (715) 261-1470Official website →

Agricultural Extension

UW-Madison Division of Extension, Marathon County

Agriculture (including ginseng and other specialty crops), natural resources, and community-development guidance.

Official website →

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Topics Specific to Marathon County

Farm Land in Marathon County: Ginseng, the Nation's Dominant Crop Region →

Sources

  1. Conservation, Planning, and Zoning — Marathon County, Wisconsin Government (accessed 2026-09)
  2. Zoning | Know Your Zoning — Marathon County, Wisconsin Government (accessed 2026-09)
  3. Zoning & Regulatory Programs — Marathon County, Wisconsin Government (accessed 2026-09)
  4. Town Role in County Zoning — University of Wisconsin-Madison Division of Extension (accessed 2026-09)
  5. Marathon County, Wisconsin (land area) — Wikipedia (accessed 2026-09)
  6. Property & Land Information — Marathon County, Wisconsin Government (accessed 2026-09)
  7. Register of Deeds — Marathon County, Wisconsin Government (accessed 2026-09)
  8. DATCP Home Ginseng Board Of Wisconsin — Wisconsin Department of Agriculture, Trade and Consumer Protection (accessed 2026-09)
  9. Marathon County: Heart of Wisconsin's ginseng community — Farm Progress (accessed 2026-09)
  10. CONVERSABLE ECONOMIST: Cultivated Ginseng and Marathon County, Wisconsin — Conversable Economist (accessed 2026-09)
  11. Meet Your Ginseng Board — Mid-West Farm Report (accessed 2026-09)
  12. Fromm Brothers Fur and Ginseng Farm — Wikipedia (accessed 2026-09)
  13. Ginseng: The Official Herb of Wisconsin — Wisconsin Legislative Reference Bureau (accessed 2026-09)
  14. Extension Marathon County — University of Wisconsin-Madison Division of Extension (accessed 2026-09)

Last reviewed 2026-09