Marathon County Uniform Addressing

Will I be able to match an old address to the new one?

Yes.

However, we do not release any addresses to the public until Official Notices are mailed to affected residents, landowners, and business owners in each municipality. These Official Notices are mailed a few weeks before scheduled installation or delivery of a new address sign.

Following each batch of Official Notice mailings, the County posts cross-reference spreadsheets of the old/new addresses to the Maps page of this website. Additional address cross-reference tables will be uploaded to the Maps page as the Uniform Addressing project progresses, so we encourage you to check back periodically for updates.

In addition, a new Search tool was added to the Home page of this website. Simply type a former street address in the blank and select “Search” to find its new Uniform Address counterpart. Please note: This Search tool only includes new addresses for properties that have already received an Official Notice of address change from the County.

If you're a business that can utilize address ranges (e.g., delivery drivers), we invite you to:

Download the Address Range data files for the EASTERN participating municipalities (Excel spreadsheet)

Download the Address Range data files for the SOUTHWEST participating municipalities (Excel spreadsheet)

Download the Address Range data files for the NORTHWEST participating municipalities (Excel spreadsheet)

Will I be able to match an old address to the new one?

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