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Knox County, ME Parcels & GIS Data

Knox County, ME parcel data: 29,449 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Knox County, Maine parcel data covering 29,449 property records.

This page documents parcel-level coverage for Knox County, Maine. Each parcel record carries its boundary polygon (GIS geometry) along with attributes such as the parcel ID/APN, owner name and mailing address, situs (property) address, assessed land and improvement values, acreage, land-use and zoning codes, year built, and most recent sale price and date. Exact fill rates for Knox County are listed in the attribute-coverage table below. Preview the data in the interactive explorer, or download the complete Knox County property dataset.

Knox County is a county located in the state of Maine, United States. As of the 2020 census, the population was 40,607. Its county seat is Rockland. The county is named for Revolutionary War general and Secretary of War Henry Knox, who lived in the county from 1795 until his death in 1806.

FIPS 23013

The FIPS code for Knox County is 23013.

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Attribute coverage

Knox County contains 29,449 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%29,449
parcelid99.5%29,292
parcelid2100%29,449
ogparcelid100%29,446
ogparcelid2100%29,449
parentid72.6%21,386
stackid<0.1%0
geoid100%29,449
statefp100%29,449
countyfp100%29,449
countyname100%29,449
cousubfp100%29,449
cousubname100%29,449
tractce100%29,449
tractname100%29,449
taxacctnum<0.1%0
taxyear0.9%277
taxdistrict99.0%29,163
usecode<0.1%0
usedesc<0.1%0
zoningcode<0.1%0
zoningdesc<0.1%0
numbldgs100%29,449
numunits0.2%63
yearbuilt<0.1%0
numfloors0.2%63
bldgsqft<0.1%0
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue<0.1%0
landvalue<0.1%0
agvalue<0.1%0
totalvalue<0.1%0
taxacres0.9%277
calcarea100%29,449
saleamt<0.1%0
saledate<0.1%0
ownertype<0.1%0
ownername<0.1%0
owneraddr<0.1%0
ownercity<0.1%0
ownerstate<0.1%0
ownerzip<0.1%0
parceladdr95.5%28,135
parcelcity99.1%29,188
parcelstate100%29,449
parcelzip100%29,449
legaldesc<0.1%0
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book<0.1%0
page<0.1%0
block0.9%277
lot0.9%277
parceltype2.3%674
accesstype2.3%674
iucnclass1.6%468
placename7.1%2,098
placetype6.9%2,040
firmid100%29,449
firmdate100%29,449
fldzone100%29,449
zonesubty93.0%27,373
staticbfe5.2%1,539
elevmin99.0%29,169
elevmax99.0%29,169
elevavg99.0%29,169
fireplaces<0.1%0
heating<0.1%0
heatfuel<0.1%0
cooling<0.1%0
foundation<0.1%0
roofcover<0.1%0
siding<0.1%0
bldgtype<0.1%0
naicscode7.1%2,098
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated100%29,449
centroidx100%29,449
centroidy100%29,449
surfpointx100%29,449
surfpointy100%29,449
geom100%29,449
extras100%29,449
lrversion100%29,449

Schema mapping

How source columns from the acquired Knox County GIS layers map into the harmonized entity schemas and assemble into the published parcel table, alongside supplemented fields (elevation, flood zone) and deterministic columns.

Schema mapping — Knox County, Maine (23013) 1 entity · most recent acquisition per entity · generated 2026-07-13 direct column transformed (expression) geometry extras json supplemented determined ALL ENTITIES → FINAL PARCEL SCHEMA Harmonized entity columns assemble into publish.parcel_layer — matched by column name. Supplemented fields show their fill rate in this county. SOURCE COLUMNS HARMONIZED ENTITIES PUBLISH.PARCEL_LAYER PARCEL tpl gpl mapyear totacres grantee townname geocode platname town sectionno plan_ lot editdate geom parentoid 20 cols ⇢ parcelid parcelid2 taxyear taxacres ownername parcelcity parcelzip legaldesc township section block lot updated geom parentid extras determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname 100% updated 100% lrversion geom · derived from geometry geom dem.us_1m · USGS 1m DEM 99.0% elevmin 99.0% elevmax 99.0% elevavg s_fld_haz_ar · FEMA NFHL 100% fldzone 93.0% zonesubty 5.2% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 99.0% taxdistrict 100% numbldgs 95.5% parceladdr 100% parcelstate lrid parcelid parcelid2 ogparcelid ogparcelid2 parentid geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxyear taxdistrict numbldgs taxacres calcarea ownertype ownername parceladdr parcelcity parcelstate parcelzip legaldesc township section block lot firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras lrversion publish.parcel_layer columns not fed by these sources (47) — empty or below 50% fill in this county stackid, taxacctnum, usecode, usedesc, zoningcode, zoningdesc, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths imprvalue, landvalue, agvalue, totalvalue, saleamt, saledate, owneraddr, ownercity, ownerstate, ownerzip, qtrsection, range, plssdesc, book page, parceltype, accesstype, iucnclass, placename, placetype, fireplaces, heating, heatfuel, cooling, foundation, roofcover, siding, bldgtype naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit PARCEL 15 mapped · 20 kept in extras · 39 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL tpl gpl mapyear totacres grantee townname geocode platname town sectionno plan_ lot editdate geom parentoid parcelid parcelid2 taxyear taxacres ownername parcelcity parcelzip legaldesc township section block lot updated geom parentid extras · 20 source columns preserved as json areaname, cacreage, easementty, rowtype, watertype, platlotno areatype, landdivtyp, grantor, ltd, notes, plan_lot, illegal deeddatety, retained, vertexcount, editor, globalid shape_starea__, shape_stlength__ extras not present in source — filled with NULL (39) taxacctnum, usecode, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths imprvalue, landvalue, agvalue, totalvalue, saleamt, saledate, owneraddr, ownercity, ownerstate, ownerzip, parceladdr, parcelstate, qtrsection range, plssdesc, book, page, sourceurl, taxdistrict, fireplaces, heating, cooling, foundation, roofcover, siding, heatfuel

Neighboring counties

Parcel data for counties bordering Knox County:

On this page

Attribute coverageSchema mappingNeighboring countiesRelated