Blog · October 14, 2026 · Pennsylvania
Using the Pleasant Hills GIS Map
Most property questions near Jefferson Hills start with a parcel lookup.
Main page: Allegheny County, PA GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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For any lot around West Mifflin, the Pleasant Hills GIS map lays out parcel boundaries plus basic tax data. This Pleasant Hills guide covers: which viewer to open, the fastest ways to search, and what to double-check with records.
Getting started with the Pleasant Hills GIS map
For acreage around Whitehall, some cities also run their own GIS portal for utilities or zoning; that can add detail on top of the county map.
Opening the official parcel viewer
Your first stop is the Allegheny County ArcGIS parcel map; it maps each assessed parcel around Glassport and West Mifflin. Closer to Whitehall, put in a street address, an owner's name or a parcel number, and the viewer zooms to the match. Out toward Jefferson Hills, a pop-up or side panel normally shows the owner of record, assessed acreage, a parcel ID and often a sale date.
Troubleshooting the viewer
If the viewer stalls on a phone near Baldwin, switch browsers or turn off pop-up blockers; the Platbookmapper county page tracks the current link.
Before you lean on the lines
Listed acreage is a tax-roll number; only a licensed surveyor can set the real corners for a parcel near Jefferson Hills. Near West Mifflin, owner names and values update on a schedule, so a deed recorded last month may not show yet.
Where Pleasant Hills fits in
Pleasant Hills is part of Allegheny County, Pennsylvania, which means parcel data comes from the county. Near Glassport, city or town hall handles things like zoning, permits and utilities within town limits, while the county keeps the tax map. Acreage past the town limits toward Jefferson Hills usually answers to county rules instead.
Next door to Allegheny County
Allegheny County borders Armstrong County, Beaver County, Butler County, Washington County, and Westmoreland County, all with their own assessor records. Ground near Glassport that runs to the line can show up in two county records, so look at the adjacent map before you assume the acreage. In and around Brentwood, the Platbookmapper state page links each neighboring county map across Pennsylvania.
Places you'll see on the map
Pittsburgh holds the county offices, home to the main records offices. Other places on the map include Jefferson Hills, Whitehall, Brentwood, and West Mifflin, where town lots give way to larger tracts. About 1,224,825 people call Allegheny County home (Census estimate, 2023) spread over roughly 730 square miles. Allegheny County was organized in 1788, and some chains of title near Whitehall are long. Places such as Allegheny River and Monongahela River make handy reference points on the map near Jefferson Hills.
Legal descriptions in Pennsylvania
Tracts outside towns near Jefferson Hills are often described by metes and bounds, which trace the boundary call by call. Platted lots around West Mifflin refer to a recorded plat, which is simpler to follow. Keep the legal description for land near Glassport when you talk to a surveyor.
Finding the right lot
By address works best for lots in Pleasant Hills; owner names are usually entered last name first. With a lot near Brentwood, searching by parcel number never misses, and it carries over to every office in the county.
Beyond the parcel lines
For property near Brentwood, look in the layer list for city limits, flood hazard, zoning or soils; availability varies.
Offices that can help
Questions about value or the owner field for land near Glassport belong with the county assessment office, since that office keeps the assessment data. Questions about what you can build around Whitehall go to planning, building or health offices, town or county, depending on location.
Keeping a record
Save a screenshot of the lot near Whitehall and its record panel, which helps later when you ask the assessor or a title company.
On site with the map
The parcel map usually runs in a mobile browser, handy when you're parked on a road near Jefferson Hills, so load it before you lose signal. A saved image of the lot near West Mifflin and its lines keeps working without signal.
Owner, value and acreage
Sales history, if listed, helps with pricing in Pleasant Hills are a useful starting point; they're not an appraisal.
Deeds, plats and who keeps them
The map is an index, not the title: recorded deeds, subdivision plats and easements covering ground around Glassport sit with the Recorder of Deeds. Around Brentwood, have ready the instrument number shown in the record panel to skip a name search.
Pleasant Hills: common questions
Does the Pleasant Hills parcel viewer cost anything?
Usually, the Allegheny County ArcGIS parcel map is free and opens without a login, though printing may be limited.
How often is the parcel map updated around Brentwood?
With a lot near Glassport, records update on the assessor's schedule.
Does Pleasant Hills have its own GIS map?
Short answer: Pleasant Hills may publish zoning or utility maps separately.
What layers does the parcel viewer have for land near Jefferson Hills?
Closer to Whitehall, layer lists vary from one viewer to the next; open the layer list to see what's there.
Why don't the lines match my fence near Jefferson Hills?
No; boundary questions near Whitehall need a licensed surveyor.
Open the official Allegheny County, PA parcel map See it in the Platbookmapper directory
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey, especially for fences, setbacks, or boundary disputes.