Blog · October 14, 2026 · Pennsylvania
Pleasant Hills Flood Zone Map: checking a property's flood zone
Flood zones are set by FEMA, and checking one near Jefferson Hills takes a few minutes.
Main page: Allegheny County, PA GIS & Parcel Viewer (official map link, county facts and neighboring maps).
Platbookmapper is an Amazon Associate. If you buy through an Amazon link on this page, we earn a commission. The link is a product, not the county map.
Weighing a property around Brentwood? The Pleasant Hills flood zone map tells you whether it sits in a FEMA flood zone, and no account is needed. In this Pleasant Hills guide: finding the address on FEMA's map, reading the zone codes, and confirming the outline on the county map.
Getting started with the Pleasant Hills flood zone map
Start with FEMA's Flood Map Service Center: search an address around Glassport, and choose the dynamic map. Vacant ground around Glassport can still be found: search the nearest road and click the spot.
Pulling up a parcel
Your first stop is the Allegheny County ArcGIS parcel map; it maps every tax parcel in the county, Jefferson Hills included. If you only know roughly where the land is, zoom in from Jefferson Hills and click the parcel itself. For land near Jefferson Hills, the record panel normally shows the owner of record, assessed acreage, the parcel number and sometimes recent sales.
City limits and county records
Pleasant Hills sits in Allegheny County, Pennsylvania, and the county assessor maps its lots. Closer to Whitehall, city or town hall handles matters such as zoning, permits and utilities inside its limits, and the county still keeps the parcel and deed records. Acreage past the town limits toward West Mifflin often falls under county rules, not municipal ones.
Reading A, AE and X
In and around Brentwood, zones beginning with A or V mark the Special Flood Hazard Area, meaning a 1% or greater chance of flooding each year. With a lot near Whitehall, a shaded X area marks moderate flood hazard, roughly the 100- to 500-year range; unshaded X means minimal mapped risk.
Parcel lines plus flood zones
FEMA doesn't draw property lines, so pair it with the Allegheny County ArcGIS parcel map for the outline of the tract near Whitehall.
Lenders and permits
In and around Jefferson Hills, get the Elevation Certificate if one exists: it can change the insurance price a lot. Remodeling a house in a zone near Whitehall can trigger elevation rules; call the permitting office early.
A short flood checklist
Request about past flood claims for the house near Jefferson Hills; an insurance quote early avoids surprises.
Sections, lots and bearings
Tracts outside towns near West Mifflin commonly use metes-and-bounds descriptions, a series of courses and distances from a starting point. Subdivision lots in West Mifflin refer to a recorded plat, making them easier to find. Keep the legal description for land near West Mifflin when you talk to a surveyor.
Backing up the map with records
The map is an index, not the title: recorded deeds, subdivision plats and easements covering ground around Glassport are kept by the Recorder of Deeds. With a lot near West Mifflin, have ready the book and page listed on the parcel record to skip a name search.
Water near Jefferson Hills
Small streams around Jefferson Hills may not have detailed mapping, so ask neighbors about past flooding. Marshy spots near Whitehall can limit building too; the National Wetlands Inventory mapper shows mapped wetlands.
Limits of the parcel data
Listed acreage is an estimate; only a licensed surveyor can set the real boundary for a parcel near Jefferson Hills. Records update in batches, so a recent sale near Whitehall may not show yet.
On site with the map
The parcel map usually runs in a mobile browser, useful out on a road near Whitehall, though signal can drop in rural spots. A saved image of the lot near Glassport and its lines keeps working without signal.
Offices that can help
Questions about value or the owner field for land near Jefferson Hills go to the county assessment office, which maintains the tax roll. Building or septic questions for a lot near Brentwood are for the local planning and health departments, and the answer depends on jurisdiction.
Places you'll see on the map
Pittsburgh is the county seat, where most land records are kept. Other places on the map include Jefferson Hills, Whitehall, Brentwood, and West Mifflin. Around 1,224,825 people call Allegheny County home (Census estimate, 2023) spread over about 730 square miles. Allegheny County was formed in 1788, and some chains of title near Glassport are long. Features like Allegheny River and Monongahela River are easy to spot when you zoom out from West Mifflin.
Frequently asked
When is flood insurance required for land near Glassport?
Good question; lenders generally require it for buildings near Brentwood in a Special Flood Hazard Area when the loan is federally regulated or insured; elsewhere it's optional.
Is there a flood layer on the parcel viewer near Jefferson Hills?
It depends, but a flood layer may appear in the Allegheny County ArcGIS parcel map layer list, but FEMA's own map is the official source.
Is AE a high-risk flood zone for land near West Mifflin?
Short answer: both are high-risk zones, but only AE has a base flood elevation, so builders near Whitehall design to that elevation.
How often are flood maps updated for land near Brentwood?
Short answer: zones near Glassport can shift when FEMA updates a panel, so look at the panel date.
Is the parcel map a survey around Glassport?
No; boundary questions near Baldwin need a licensed surveyor; a survey sets the real corners
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.