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Knox County, ME Parcels & GIS Data

Knox County, ME parcel data: 31,554 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Knox County, Maine parcel data covering 31,554 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

Official county website: http://knoxmaine.com

The FIPS code for Knox County is 23013.

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Attribute coverage

Knox County contains 31,554 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL). For the LBCS columns, only real classifications count: the to-be-determined and not-applicable placeholder codes are excluded.

ColumnCoverageRecords populated
lrid100%31,554
parcelid99.5%31,404
parcelid285.1%26,866
ogparcelid100%31,552
ogparcelid285.2%26,869
parentid49.8%15,714
stackid<0.1%0
geoid100%31,554
statefp100%31,554
countyfp100%31,554
countyname100%31,554
cousubfp100%31,554
cousubname100%31,554
tractce100%31,554
tractname100%31,554
taxacctnum3.1%981
taxyear100%31,554
taxdistrict71.6%22,604
usecode22.1%6,976
usedesc19.7%6,212
zoningcode19.6%6,185
zoningdesc14.5%4,568
numbldgs92.9%29,308
numunits24.1%7,592
yearbuilt3.0%949
numfloors3.2%1,013
bldgsqft6.8%2,143
bedrooms2.9%917
halfbaths<0.1%0
fullbaths2.9%911
imprvalue25.5%8,031
landvalue34.2%10,803
agvalue<0.1%0
totalvalue34.3%10,813
taxacres38.1%12,029
calcarea100%31,554
saleamt19.2%6,058
saledate2.3%725
ownertype39.1%12,352
ownername31.8%10,021
owneraddr23.8%7,496
ownercity20.2%6,365
ownerstate20.3%6,400
ownerzip20.3%6,399
parceladdr72.6%22,902
parcelcity72.7%22,945
parcelstate100%31,554
parcelzip100%31,553
legaldesc<0.1%0
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book6.0%1,899
page6.1%1,917
block0.9%277
lot16.9%5,344
parceltype2.4%764
accesstype2.4%771
iucnclass1.7%522
placename7.2%2,258
placetype7.0%2,200
firmid100%31,554
firmdate100%31,554
fldzone100%31,554
zonesubty93.0%29,340
staticbfe5.2%1,633
elevmin99.0%31,252
elevmax99.0%31,252
elevavg99.0%31,252
fireplaces<0.1%0
heating2.9%919
heatfuel2.9%919
cooling3.0%949
foundation<0.1%0
roofcover3.0%949
siding3.0%949
bldgtype<0.1%0
naicscode8.3%2,618
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated92.9%29,308
centroidx100%31,554
centroidy100%31,554
surfpointx100%31,554
surfpointy100%31,554
geom100%31,554
extras100%31,554
ownerlist31.0%9,779
placefp21.2%6,694
zoningurl4.3%1,362
lbcsactivity22.9%7,238
lbcsfunction22.8%7,195
lbcstype42.1%13,270
lbcscharacter71.9%22,688
lbcsownership34.1%10,749
sourceurl37.5%11,829

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) 2 entities · most recent acquisition per entity · generated 2026-10-10 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 parcel_num full_num alt_num areatype area block lot geom 4 cols ⇢ parcelid parcelid2 taxacres block lot geom extras ZONING geom type id geom zoningcode extras determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname 100% taxyear 92.9% updated 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 71.6% taxdistrict 92.9% numbldgs 72.6% parceladdr 72.7% parcelcity 100% parcelstate 100% parcelzip 71.9% lbcscharacter lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxyear taxdistrict zoningcode numbldgs taxacres calcarea parceladdr parcelcity parcelstate parcelzip block lot firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras lbcscharacter publish.parcel_layer columns not fed by these sources (60) — empty or below 50% fill in this county parentid, stackid, taxacctnum, usecode, usedesc, zoningdesc, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths imprvalue, landvalue, agvalue, totalvalue, saleamt, saledate, ownertype, ownername, owneraddr, ownercity, ownerstate, ownerzip, legaldesc township, section, qtrsection, range, plssdesc, book, page, parceltype, accesstype, iucnclass, placename, placetype, fireplaces, heating heatfuel, cooling, foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit, ownerlist, placefp zoningurl, lbcsactivity, lbcsfunction, lbcstype, lbcsownership, sourceurl PARCEL 6 mapped · 5 transformed · 4 kept in extras · 48 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL parcel_num full_num alt_num areatype area block lot geom parcelid COALESCE(NULLIF(TRIM(parcel_num::text), ''), NULLIF(TRIM(full_n… parcelid2 NULLIF(TRIM(alt_num::text), '')::text taxacres CASE WHEN lower(TRIM(areatype::text)) IN ('ac', 'acre', 'acres'… block NULLIF(TRIM(block::text), '')::text lot NULLIF(TRIM(lot::text), '')::text geom extras · 4 source columns preserved as json map, building, type, mapshade extras not present in source — filled with NULL (48) taxacctnum, taxyear, usecode, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths fullbaths, imprvalue, landvalue, agvalue, totalvalue, saleamt, saledate, ownername, owneraddr, ownercity, ownerstate, ownerzip, parceladdr parcelcity, parcelstate, parcelzip, legaldesc, township, section, qtrsection, range, plssdesc, book, page, updated, sourceurl, taxdistrict parentid, heatfuel, fireplaces, heating, cooling, foundation, roofcover, siding ZONING 3 mapped · 2 transformed · 7 unmapped (NULL) SOURCE COLUMNS HARMONIZED → ZONING geom type id geom zoningcode COALESCE( NULLIF( btrim(regexp_replace("type", '.*[(]([^)]*)[)]… extras json_build_object('id', id::text)::text not present in source — filled with NULL (7) zoningdesc, zoningtype, ordinance, setbacks, restrictions, notes, sourceurl

Neighboring counties

Parcel data for counties bordering Knox County:

Frequently asked questions

Where can I find Knox County, ME parcel and GIS data?

Land Records publishes a Knox County, ME parcel dataset in which every parcel carries its boundary polygon (GIS geometry) along with ownership, assessed value, land use, acreage, and sale history. Preview it in the interactive explorer on this page, or download the full Knox County, ME dataset as a GeoPackage or CSV.

How many parcels are in Knox County, ME?

The current dataset contains 31,554 parcel records for Knox County, ME, each with its boundary geometry and assessor attributes.

What is the FIPS code for Knox County, ME?

The FIPS code for Knox County, ME is 23013.

What information does each Knox County, ME parcel record include?

Each Knox County, ME parcel record includes 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 the most recent sale price and date — plus the parcel boundary polygon. Per-attribute fill rates are listed in the coverage table on this page.

Is Knox County, ME parcel data free?

You can preview Knox County, ME parcels for free in the interactive explorer. The complete dataset is available as a one-time download or through the nationwide parcel web service; see the download options on this page for current pricing.

Does Knox County, ME have an official GIS or property records website?

Yes — the official Knox County, ME government website is linked in the county details above. Land Records standardizes Knox County, ME assessor and recorder records into a single nationwide parcel schema with GIS boundary geometry.

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated