Grant County
Grant County
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Real Property/Land Information Staff

Tammy Hampton, Deputy County Clerk/Real Property Lister   
111 S. Jefferson St, PO BOX 529         
Lancaster, WI 53813                          
Phone Number:  608-723-2666          
Fax Number:  608-723-4048              

Tiffany Ehlen, GIS Specialist
111 S. Jefferson St, PO BOX 529
Lancaster, WI  53813
Phone Number: 608-723-2666
Fax Number: 608-723-4048

Please email at: or
Office Hours:  8:00am to 4:30pm Monday thru Friday

Duties of Real Property Specialist:

  • Update our GCS Program to reflect changes in ownership, boundaries, annexations, subdivisions and highways according the deeds recorded in the Register of Deeds office for each individual parcel described.
  • Research ownership, boundary, tax-related questions and provides answers to assessors, realtors, attorneys, abstractors, appraisers, prospective landowners, lending institutions, general public, municipal clerks and treasurers, County staff, County Treasurer and State personnel.
  • Reviews and maintains current information regarding new laws and regulations relating to the operation of the office.
  • Updates address changes as they occur and maintain physical addresses per 911 numbering system.


For 2015 Aerial Imagery, Tie Sheets, Plats of Survey, and more visit:

LiDAR Data Download Site:

Other Wisconsin Imagery
Wisconsin Statewide Parcel Map


Frequently Asked Questions:

Need a Surveyor?

Surveyors are educated and trained in legal principles and boundary control. They are officially licensed in Wisconsin to serve the public to accurately locate and officially mark property corners and locate property lines.

Does the County have online tax records?

You can look up tax parcel information online, as well as tax bills using our Grant County Web Portal.

Can I look up a parcel online?

These publications from the Wisconsin Department of Revenue contain more in-depth information regarding the Assessment Process and your role in the Assessment Process:

Guide to the Property Assessment Process for Municipal Officials

Assessment and Tax Roll Instructions for Clerks



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