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Allegheny County, PA Parcels & GIS Data

Allegheny County, PA parcel data: 592,745 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Allegheny County, Pennsylvania parcel data covering 592,745 property records.

This page documents parcel-level coverage for Allegheny County, Pennsylvania. 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 Allegheny County are listed in the attribute-coverage table below. Preview the data in the interactive explorer, or download the complete Allegheny County property dataset.

Allegheny County is a large urban county in Pennsylvania, United States. As of the 2025 census estimate, the population was 1,225,035, a 2% decrease of 25,543 residents since 2020, making it the state's second-most populous county, after Philadelphia County. Its county seat and most populous city is Pittsburgh, Pennsylvania's second most populous city. The county is part of the Greater Pittsburgh region of the commonwealth, and is the center of the Pittsburgh media market.

FIPS 42003

The FIPS code for Allegheny County is 42003.

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Attribute coverage

Allegheny County contains 592,745 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%592,745
parcelid100%592,739
parcelid299.0%586,998
ogparcelid100%592,745
ogparcelid2100%592,715
parentid<0.1%0
stackid<0.1%0
geoid100%592,745
statefp100%592,745
countyfp100%592,745
countyname100%592,745
cousubfp100%592,745
cousubname100%592,745
tractce100%592,745
tractname100%592,745
taxacctnum4.7%27,888
taxyear<0.1%0
taxdistrict98.9%586,024
usecode<0.1%89
usedesc98.9%586,113
zoningcode<0.1%0
zoningdesc<0.1%0
numbldgs<0.1%78
numunits<0.1%76
yearbuilt<0.1%89
numfloors<0.1%0
bldgsqft<0.1%89
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue<0.1%75
landvalue<0.1%88
agvalue<0.1%0
totalvalue<0.1%89
taxacres100%592,715
calcarea100%592,745
saleamt<0.1%49
saledate<0.1%79
ownertype<0.1%89
ownername<0.1%89
owneraddr<0.1%89
ownercity<0.1%89
ownerstate<0.1%89
ownerzip<0.1%89
parceladdr99.8%591,772
parcelcity99.6%590,130
parcelstate100%592,745
parcelzip100%592,745
legaldesc100%592,715
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book<0.1%78
page<0.1%78
block98.9%586,314
lot<0.1%0
parceltype1.3%7,990
accesstype1.3%7,990
iucnclass0.3%1,773
placename4.6%27,066
placetype4.5%26,667
firmid100%592,745
firmdate100%592,745
fldzone100%592,745
zonesubty98.5%584,017
staticbfe<0.1%172
elevmin94.9%562,512
elevmax94.9%562,512
elevavg94.9%562,512
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
naicscode4.6%27,069
frsid<0.1%0
dfrurl<0.1%0
caapermit<0.1%0
cwapermit<0.1%0
rcrapermit<0.1%0
updated100%592,745
centroidx100%592,745
centroidy100%592,745
surfpointx100%592,745
surfpointy100%592,745
geom100%592,745
extras100%592,745
ownerlist<0.1%0

Schema mapping

How source columns from the acquired Allegheny 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 — Allegheny County, Pennsylvania (42003) 1 entity · most recent acquisition per entity · generated 2026-07-25 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 pin mapblocklo pseudono notes calcacreag comments geom municode 1 cols ⇢ parcelid parcelid2 taxacctnum usedesc taxacres legaldesc geom taxdistrict extras determined · ground truth 100% lrid 100% geoid 100% statefp 100% countyfp 100% countyname 100% cousubfp 100% cousubname 100% tractce 100% tractname 100% updated geom · derived from geometry geom dem.us_1m · USGS 1m DEM 94.9% elevmin 94.9% elevmax 94.9% elevavg s_fld_haz_ar · FEMA NFHL 100% fldzone 98.5% zonesubty 0.0% staticbfe 100% firmdate 100% firmid supplemented · derived / other pipelines 100% parceladdr 100% parcelcity 100% parcelstate 100% parcelzip 98.9% block lrid parcelid parcelid2 ogparcelid ogparcelid2 geoid statefp countyfp countyname cousubfp cousubname tractce tractname taxacctnum taxdistrict usedesc taxacres calcarea parceladdr parcelcity parcelstate parcelzip legaldesc block firmid firmdate fldzone zonesubty staticbfe elevmin elevmax elevavg updated centroidx centroidy surfpointx surfpointy geom extras publish.parcel_layer columns not fed by these sources (54) — empty or below 50% fill in this county parentid, stackid, taxyear, usecode, zoningcode, zoningdesc, numbldgs, numunits, yearbuilt, numfloors, bldgsqft, bedrooms, halfbaths, fullbaths imprvalue, landvalue, agvalue, totalvalue, saleamt, saledate, ownertype, ownername, owneraddr, ownercity, ownerstate, ownerzip, township section, qtrsection, range, plssdesc, book, page, lot, parceltype, accesstype, iucnclass, placename, placetype, fireplaces, heating, heatfuel cooling, foundation, roofcover, siding, bldgtype, naicscode, frsid, dfrurl, caapermit, cwapermit, rcrapermit, ownerlist PARCEL 8 mapped · 1 kept in extras · 46 unmapped (NULL) SOURCE COLUMNS HARMONIZED → PARCEL pin mapblocklo pseudono notes calcacreag comments geom municode parcelid parcelid2 taxacctnum usedesc taxacres legaldesc geom taxdistrict extras · 1 source columns preserved as json globalid extras not present in source — filled with NULL (46) taxyear, usecode, 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, township, section, qtrsection, range, plssdesc, book, page, block, lot, updated, sourceurl, parentid, fireplaces, heating, cooling foundation, roofcover, siding, heatfuel

Neighboring counties

Parcel data for counties bordering Allegheny County:

Frequently asked questions

Where can I find Allegheny County, PA parcel and GIS data?

Land Records publishes a Allegheny County, PA 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 Allegheny County, PA dataset as a GeoPackage or CSV.

How many parcels are in Allegheny County, PA?

The current dataset contains 592,745 parcel records for Allegheny County, PA, each with its boundary geometry and assessor attributes.

What is the FIPS code for Allegheny County, PA?

The FIPS code for Allegheny County, PA is 42003.

What information does each Allegheny County, PA parcel record include?

Each Allegheny County, PA 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 Allegheny County, PA parcel data free?

You can preview Allegheny County, PA 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.

On this page

Attribute coverageSchema mappingNeighboring countiesFAQRelated