Knox County, ME

Knox County, ME 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 Knox County, Maine. Search an address or APN, then jump to official county sources or property tax and value data.

Official sources

Knox 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.

Knox County official assessor, tax, deed, GIS, permit, and land-use sources
Record typeOfficial sourceNotes
Property searchSearchIQS - Knox County Recordswww.searchiqs.com/mekno/
  • Official vendor portal for searching recorded property documents.
  • Subscription required for full access.
  • Guest search available.
Deeds and recorded documentsKnox County Registry of Deedsknoxcountymaine.gov/county_departments/registry_of_deeds/index.php
  • Official county portal for land records.
  • Records date back to 1760.
  • Registry does not provide legal advice.
Property taxesMaine Revenue Services - Property Taxwww.maine.gov/revenue/taxes/property-tax
  • Maine handles property assessment and tax collection at the municipal level.
  • No centralized county-wide tax database exists.
  • Use this site for state-level tax information and unorganized territory tax inquiries.
GIS and parcel mapsKnox County Online Mapping Resourcesknoxcountymaine.gov/county_departments/emergency_management_agency/gis___mapping/online_mapping_resources.php
  • Provides links to Maine Geolibrary parcel viewers and other state-level mapping resources.
  • No centralized county-wide parcel viewer; relies on state-level GIS data.
County data

Knox 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 estimated value$425,841

Median estimated market value for properties in this county.

AssessorSearch county data
Median assessed value$360,350

Median assessed value from county assessment records when available.

AssessorSearch county data
Median annual property tax$5,055

Median annual property tax amount from indexed tax records when available.

AssessorSearch county data
Median effective property tax rate1.08%

Median effective property tax rate calculated from annual tax and value fields.

AssessorSearch county data

City property data

Top city rollups for estimated value, assessed value, property tax rate, and tax amount.

Knox County city-level property value and tax-rate rollups
CityMedian estimated valueMedian assessed valueMedian effective property tax rateMedian tax amount
Rockland$362,207$348,0001.61%$5,770
Camden$686,900$627,9501.07%$7,222
Warren$349,452$257,7501.06%$3,660
Rockport$565,958$555,4001.40%$7,581
Union$403,990$374,2001.22%$5,009
Tenants Harbor$571,180$330,1000.75%$4,242
Owls Head$508,538$499,0000.89%$4,591
Thomaston$340,698$226,0501.55%$5,026
South Thomaston$476,593$437,5001.00%$4,802
Friendship$411,862$285,9000.74%$2,988
FAQ

Knox County property records FAQ

Common questions about assessor, deed, tax, GIS, and permit records.

Where can I verify assessed value in Knox County?

Use the official SearchIQS - Knox County Records for assessed values, parcel details, exemptions, and property characteristics when those records are available online.

Where can I look up Knox County property tax bills or payments?

Use the official Maine Revenue Services - Property Tax for property tax bills, payment history, due dates, or tax collector records.

Where can I find deeds or recorded documents in Knox County?

Use the official Knox County Registry 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 Knox County?

Use the official Knox County Online Mapping Resources for parcel maps, map layers, boundaries, and GIS context. GIS maps should be treated as reference tools, not legal surveys.

Can I build a list of Knox County property owners?

Use Affix by AssessorSearch for county property owner lists, filters, exports, skip tracing, and outreach workflows.

Related counties

More Maine property records

Use related county pages when researching nearby property records or comparing official source patterns.