Median estimated market value for properties in this county.
AssessorSearch county dataGrant County, WI
Grant County, WI assessor property search and records
Use this county guide to find official assessor property search resources, recorder and deed links, tax records, GIS parcel maps, permits, and property data insights for Grant County, Wisconsin. Search an address or APN, then jump to official county sources or property tax and value data.
Search a Grant County address or APN
Official sources
Grant County assessor, recorder, tax, and parcel map sources
Use this table to find the official county source for assessor property search, recorded documents, property tax, GIS parcel maps, permits, and zoning records.
| Record type | Official source | Notes |
|---|---|---|
| Assessed values | Grant County Land Records Portallandrecords.co.grant.wi.gov/GCSWebPortal/ |
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| Deeds and recorded documents | Grant County Register of Deedswww.co.grant.wi.gov/index.php/register-of-deeds/ |
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| Property taxes | Grant County Tax Parcel Portallandrecords.co.grant.wi.gov/GCSWebPortal/ |
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| GIS and parcel maps | Grant County Parcel Explorergcarcgis.co.grant.wi.gov/portal/apps/experiencebuilder/experience/ |
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| Permits and building records | Grant County Land Records Portallandrecords.co.grant.wi.gov/GCSWebPortal/ |
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| Zoning and land use | Grant County Zoning Code (eCode360)ecode360.com/GR2181 |
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County data
Grant County tax rates and property values
County and city-level rollups from AssessorSearch indexed property data. Use these values as directional context, then verify parcel-specific details with the official county sources above.
Median assessed value from county assessment records when available.
AssessorSearch county dataMedian annual property tax amount from indexed tax records when available.
AssessorSearch county dataMedian effective property tax rate calculated from annual tax and value fields.
AssessorSearch county dataCity property data
Top city rollups for estimated value, assessed value, property tax rate, and tax amount.
| City | Median estimated value | Median assessed value | Median effective property tax rate | Median tax amount |
|---|---|---|---|---|
| Platteville | $246,879 | $202,400 | 1.23% | $2,977 |
| Lancaster | $212,264 | $152,400 | 1.11% | $2,319 |
| Boscobel | $180,340 | $147,100 | 1.34% | $2,345 |
| Cuba City | $235,280 | $156,650 | 1.27% | $2,986 |
| Fennimore | $190,905 | $119,650 | 1.12% | $2,099 |
| Hazel Green | $247,551 | $176,100 | 1.11% | $2,755 |
| Potosi | $238,780 | $192,000 | 1.02% | $2,410 |
| Muscoda | $193,721 | $170,600 | 1.31% | $2,496 |
| Cassville | $165,224 | $97,400 | 1.06% | $1,724 |
| Bagley | $109,722 | $97,300 | 0.91% | $980 |
FAQ
Grant County property records FAQ
Common questions about assessor, deed, tax, GIS, and permit records.
Where can I search Grant County property records by address?
Use the official Grant County Land Records Portal to search Grant County property records by address or parcel number. Use AssessorSearch property search as a free, easy-to-use option to search Grant County by address or APN.
How do I find the owners of Grant County properties?
Use the official Grant County Land Records Portal for county ownership and parcel records when owner names are available online. Use AssessorSearch property search as a free, easy-to-use option to look up Grant County properties by address or APN.
Where can I verify assessed value in Grant County?
Use the official Grant County Land Records Portal for assessed values, parcel details, exemptions, and property characteristics when those records are available online.
Where can I look up Grant County property tax bills or payments?
Use the official Grant County Tax Parcel Portal for property tax bills, payment history, due dates, or tax collector records.
Where can I find deeds or recorded documents in Grant County?
Use the official Grant County Register of Deeds for deeds, mortgages, liens, plats, and other recorded documents. These records are usually separate from assessor property-value records.
Where can I view parcel maps or GIS data in Grant County?
Use the official Grant County Parcel Explorer for parcel maps, map layers, boundaries, and GIS context. GIS maps should be treated as reference tools, not legal surveys.
Where can I search permits or zoning in Grant County?
Use Grant County Land Records Portal for permits and Grant County Zoning Code (eCode360) for zoning or land-use records. City properties may require city-specific permit or planning portals.
Can I build a list of Grant County property owners?
Use Affix by AssessorSearch for county property owner lists, filters, exports, skip tracing, and outreach workflows.
Related counties
More Wisconsin property records
Use related county pages when researching nearby property records or comparing official source patterns.