Land Records System:

As of September 3, 2019, Marathon County has implemented the Transcendent Technologies Ascent Land Records Suite. Land and tax related information is available at

Tract Index:

You are able to search the Marathon County real estate records index on-line free of charge and you can view/print documents recorded in the Register of Deeds Office for a fee using LandShark. LandShark is a web-based tool for the location and retrieval of land record documents. With LandShark, you can search for land record documents and, if the document is available on our system, actually view the document on your computer.

Some of the common document types are: Deeds, Mortgages, Certified Survey Maps, and Easements.

To begin your search visit LandShark and register now.

Survey Information:

The Marathon County Surveyor Data including Benchmarks, Section Summaries, Plats of Survey and Tie Sheets are now being presented through a service provided by the Marathon County Surveyor Office.

The following link will take you to this site: “MAIN FOLDER” The images are filed by Town and Range in each of the above categories.

The Section Corner Grid that is used to determine the Tie Sheet number within a Town and Range is located at: “SECTION CORNER GRID

If you have any questions pertaining to locating the survey information you need please contact the County Surveyor at 715-261-6000.

Online Mapping:

County online mapping system and several predefined maps can be accessed from the Conservation Planning Zoning "On-Line Maps" page.

County Highway Plans:

The Marathon County Highway Department maintains records documenting highway right-of-way and construction dating back almost a century. These records are frequently referenced by surveyors, engineers, and landowners. In an effort to make the most frequently referenced documents more readily available, many of them have been scanned into PDF format and are available Online.