Contact Information
- Office Name:
- City of Oshkosh Assessor
- Phone:
- (920) 236-5070
- Official Website:
- Visit Website
- County FIPS:
- 55139
- Data Available Online:
- Yes
- Last verified:
- 2026-07-13
Searching City of Oshkosh Assessor Records
Data available
Use Quick Search on the City of Oshkosh Assessor portal and search by parcel ID, owner name, or location/address. For more filters, open Parcel and Sales Search and query by owner name, parcel number (contains or range), subdivision, neighborhood, use, or acreage. A linked GIS map viewer is available from the same portal; real estate tax lookup is offered via the city's self-service Real Estate Tax link.
Additional Information
The City of Oshkosh Assessor's Office maintains property assessments for real property within the city and publishes contact information and resources on the official Assessor page. The public can freely search parcel and sales records on the official GSA-hosted Assessor Records Search portal by parcel ID, owner name, or address, with advanced parcel/sales filters also available. The portal includes a GIS map viewer and free Excel/zip file downloads such as sales lists and an annual assessment datafile. Real estate tax information is linked separately through the city's online self-service Real Estate Tax system.
Provide title services in Winnebago County? Create a listing and add coverage to appear on this page.