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Knox County, ME Parcels & GIS Data

Knox County, ME parcel data: 29,627 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Knox County, Maine parcel data covering 29,627 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 29,627 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%29,627
parcelid99.5%29,470
parcelid2100%29,627
ogparcelid100%29,624
ogparcelid2100%29,627
parentid72.8%21,564
stackid<0.1%0
geoid100%29,627
statefp100%29,627
countyfp100%29,627
countyname100%29,627
cousubfp100%29,627
cousubname100%29,627
tractce100%29,627
tractname100%29,627
taxacctnum3.3%981
taxyear4.2%1,258
taxdistrict99.2%29,376
usecode32.1%9,496
usedesc21.9%6,478
zoningcode4.1%1,228
zoningdesc0.9%271
numbldgs100%29,627
numunits4.3%1,280
yearbuilt3.2%949
numfloors3.4%1,012
bldgsqft10.6%3,139
bedrooms3.1%917
halfbaths<0.1%0
fullbaths3.1%911
imprvalue44.0%13,031
landvalue55.1%16,327
agvalue<0.1%0
totalvalue55.1%16,337
taxacres5.3%1,558
calcarea100%29,627
saleamt38.8%11,504
saledate9.3%2,756
ownertype60.4%17,889
ownername40.1%11,868
owneraddr36.6%10,839
ownercity32.8%9,710
ownerstate32.9%9,743
ownerzip32.9%9,743
parceladdr95.8%28,379
parcelcity99.3%29,413
parcelstate100%29,627
parcelzip100%29,627
legaldesc<0.1%0
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book18.6%5,514
page18.7%5,532
block0.9%277
lot0.9%277
parceltype2.3%694
accesstype2.3%694
iucnclass1.6%475
placename7.2%2,124
placetype7.0%2,066
firmid100%29,627
firmdate100%29,627
fldzone100%29,627
zonesubty92.9%27,536
staticbfe5.2%1,546
elevmin99.0%29,330
elevmax99.0%29,330
elevavg99.0%29,330
fireplaces<0.1%0
heating3.1%919
heatfuel3.1%919
cooling3.2%949
foundation<0.1%0
roofcover3.2%949
siding3.2%949
bldgtype<0.1%0
naicscode7.2%2,124
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated100%29,627
centroidx100%29,627
centroidy100%29,627
surfpointx100%29,627
surfpointy100%29,627
geom100%29,627
extras100%29,627
ownerlist39.2%11,604
placefp21.4%6,346
zoningurl<0.1%0

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 2026-08-30 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 map_bk_lot state_id prop_loc town fmupdat geom county parent 11 cols ⇢ parcelid parcelid2 parceladdr parcelcity updated geom taxdistrict parentid extras determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname 4.2% taxyear 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 92.9% zonesubty 5.2% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 100% numbldgs 55.1% landvalue 55.1% totalvalue 60.4% ownertype 100% parcelstate 100% parcelzip lrid parcelid parcelid2 ogparcelid ogparcelid2 parentid geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxyear taxdistrict numbldgs landvalue totalvalue calcarea ownertype parceladdr parcelcity parcelstate parcelzip firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras publish.parcel_layer columns not fed by these sources (55) — empty or below 50% fill in this county stackid, taxacctnum, usecode, usedesc, zoningcode, zoningdesc, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths imprvalue, agvalue, taxacres, saleamt, saledate, ownername, owneraddr, ownercity, ownerstate, ownerzip, legaldesc, township, section qtrsection, range, plssdesc, book, page, block, lot, parceltype, accesstype, iucnclass, placename, placetype, fireplaces, heating, heatfuel cooling, foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit, ownerlist, placefp, zoningurl PARCEL 8 mapped · 11 kept in extras · 46 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL map_bk_lot state_id prop_loc town fmupdat geom county parent parcelid parcelid2 parceladdr parcelcity updated geom taxdistrict parentid extras · 11 source columns preserved as json geocode, proplocnum, type, fmupdorg, fmsrcorg, globalid created_user, created_date, last_edited_user last_edited_date, cntycode extras not present in source — filled with NULL (46) taxacctnum, taxyear, usecode, usedesc, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths fullbaths, imprvalue, landvalue, agvalue, totalvalue, taxacres, saleamt, saledate, ownername, owneraddr, ownercity, ownerstate, ownerzip parcelstate, parcelzip, legaldesc, township, section, qtrsection, range, plssdesc, book, page, block, lot, sourceurl, fireplaces, heating cooling, foundation, roofcover, siding, heatfuel

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 29,627 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