Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. Every office link was opened and checked against the office's own site between September 23, 2026 and October 1, 2026.
Oshkosh, Wisconsin, in Winnebago County, has about 67,000 residents (2024 Census Bureau estimate). The title to a parcel in Oshkosh is in the deed records of the Register of Deeds and its taxable value is set by the town assessor; what is built on it is a matter for the city. This guide says who keeps each record and where the page for each office is.
This guide covers deeds, assessed values, city permits and records, evictions and court cases, records requests and common questions.
Related guides: Oshkosh public records, Winnebago County property records, Oshkosh arrest records, Oshkosh warrants, Oshkosh inmate search, Oshkosh police reports, Wisconsin arrest records and Wisconsin inmate search.
Deeds, Mortgages and Liens in Oshkosh
Deeds, mortgages, liens and easements that affect title to land in Oshkosh are recorded by the Register of Deeds, which indexes them by name and sells copies.
SearchSystems opened and checked the Register of Deeds' page at winnebagocountywi.gov/491/Register-of-Deeds (page title: Register of Deeds | Winnebago County, WI), phone 920-232-3390, 112 Otter Ave Room 108 Oshkosh, WI 54901, Monday through Friday 8 am to 4:30 pm, which answered when SearchSystems opened it on September 24, 2026.
Assessed Values and the Tax Roll in Oshkosh
The value each parcel in Oshkosh is taxed on is set locally, by the assessor of each city, town and village, not by the county. Wisconsin property is assessed by each city, town and village, and the state equalizes the values across municipalities.
The county property tax office's page SearchSystems verified is at winnebagocountywi.gov/643/Property-Information (page title: Property Information | Winnebago County, WI), phone 920-232-3420, 112 Otter Ave Room 116 Oshkosh, WI 54901, which answered when SearchSystems opened it on October 1, 2026.
Permits and City Records in Oshkosh
Building permits, zoning and code cases are the city's own. For Oshkosh, SearchSystems opened and checked the city hall page at oshkoshwi.gov/Departments (page title: Department Directory | City of Oshkosh), phone 920-236-5110, 215 Church Ave. PO Box 1130 Oshkosh, WI 54903-1130, which answered when SearchSystems opened it on September 25, 2026.
The city clerk's page SearchSystems verified is at oshkoshwi.gov/CityClerk (page title: City Clerk | City of Oshkosh), 215 Church Avenue P.O. Box 1130 Oshkosh, WI 54903-1130, which answered when SearchSystems opened it on September 25, 2026.
Evictions and Court Cases About Land in Oshkosh
Court cases about land from Oshkosh, evictions among them, are filed in the Winnebago County Circuit Court.
Asking a County Office for a Record
Under the Wisconsin Public Records Law a county office must answer a request as soon as practicable and without delay; the law sets no number of days, and it may charge the actual cost of copying and locating, with no charge for the first $50 of locating. The county records request page SearchSystems verified is at winnebagocountysheriffwi.nextrequest.com (page title: Public Records Online PortalNextRequest | Modern FOIA & Public Records Request Software).
Frequently Asked Questions
Who records deeds in Oshkosh?
The Register of Deeds, at winnebagocountywi.gov/491/Register-of-Deeds, phone 920-232-3390. Deeds, mortgages and liens on land in Oshkosh are filed there.
Who sets the assessed value of a property in Oshkosh?
The assessor of each city, town and village.
Where are evictions from Oshkosh filed?
In the Winnebago County Circuit Court. The file is public unless the court seals it.
How is property assessed in Wisconsin?
Wisconsin property is assessed by each city, town and village, and the state equalizes the values across municipalities.
Is this the official Oshkosh website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official city, county, court and state offices described above and does not hold records, charge for them or take requests.