Property Information

Property Information Lookup

The search is for Winnebago County properties and will only include City of Oshkosh, Neenah, Menasha, and Appleton properties if there is a delinquent tax balance. If you are looking for current ownership information for a city property you will need to access their website directly.

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For current year ownership information and current payoff information click here.

Disclaimers Regarding Property Tax Information

The information provided here is a courtesy and convenience to the citizens of Winnebago County. This data is not intended to be construed as an official record. If you require certifiably accurate tax record information, please visit the Winnebago County Treasurer's office at 112 Otter Ave, Oshkosh Wisconsin.


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Mary E. Krueger-Treasurer

112 Otter Ave
Room 116
Oshkosh, WI 54901
Phone: (920) 232-3420
Mailing address:
PO BOX 2806
Oshkosh WI 54903-2806

Office Email

Office hours:
8:00 - 4:30 Monday - Friday except as noted below

2021 Holiday Schedule:
January 1 - New Years Day
April 2 - Good Friday
May 24 - Memorial Day
July 4 - Fourth of July
September 6 - Labor Day
November 25 & 26 Thanksgiving and day after
December 24 & 27 Christmas Eve and Christmas Day
December 31 New Years Eve