Contact Information
- Office Name:
- Oconto County Assessor
- Phone:
- (920) 834-6827
- Official Website:
- Visit Website
- County FIPS:
- 55083
- Data Available Online:
- Yes
- Last verified:
- 2026-07-13
Searching Oconto County Assessor Records
Data available
Start at the county SOLO portal and choose Public GCS Tax Information for tax/assessment lookup (search by parcel number with leading zeros and no dashes/spaces, owner name, or house number only), Ascent Land Records for detailed real estate tax parcel information, or GIS Map for interactive parcel maps. Assessment values and related parcel data are also reachable from Taxes & Maps links on the county website.
Additional Information
Oconto County does not operate a single county assessor's office; municipal assessors set values, while the county Real Property Listing office (Land Information) maintains roughly 42,000 parcels used for assessor work rolls, assessment rolls, notices, tax rolls, and tax bills. Official online land records are reached through the Oconto County SOLO portal, which during a software transition links to Public GCS Tax Information (property/tax/assessment search), Ascent Land Records (detailed parcel information), and an HTML5 GIS map viewer. Public property search in the GCS Web Portal supports lookup by parcel number, owner name, or property address (house number). Parcel GIS layers are also exposed via the county ArcGIS REST MapServer.
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