Blog · October 14, 2026 · Pennsylvania
The Union County Plat Book and the online parcel map
For a parcel near Allenwood, plat books show ownership by township; the parcel viewer shows it today.
Main page: Union County, PA GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Hunting for the latest Union County plat book? These atlases map who owns rural land, page by page, useful for farms near Shikellamy State Park. In this Union County guide: what's in a plat book, where to find editions, and how the county viewer fills the gaps.
The Union County plat book: start here
For a tract near New Berlin, plat books are commercial atlases, that map ownership across the countryside, usually township by township.
Getting to the right map
Your first stop is the PASDA Pennsylvania Tax Parcels viewer; it covers each tax parcel from Sand Bridge State Park to New Berlin. When a rural tract has no street number, pan along US Route 15 and click the parcel itself, which applies near Lewisburg as much as anywhere. For a tract near New Berlin, copy the parcel ID from that panel; every records desk in the county asks for it first.
Editions and availability
Editions come and go depending on publishers, check with local offices and farm stores near Linntown.
A quick look at the area
Lewisburg holds the county offices, home to the main records offices. Smaller places on the map include Hartleton, Mifflinburg, New Berlin, and Allenwood, where town lots give way to larger tracts. Around 42,042 people call Union County home (Census Bureau estimate, 2023) spread over about 316 square miles. Union County was formed in 1813, and some chains of title near Linntown are long. Features like Susquehanna River and Sand Bridge State Park make handy reference points on the map near Sand Bridge State Park.
Common uses
Farmers, hunters and appraisers near Mifflinburg use plat books to see ownership across many tracts at once.
Current ownership online
Between printed editions, the PASDA Pennsylvania Tax Parcels viewer shows current owners, across the county, and that holds around Sand Bridge State Park too.
Making your own township pages
Screenshot each section of the viewer around Allenwood and keep them in a binder for the truck.
Neighboring parcel maps
Union County meets Centre County, Clinton County, Lycoming County, Mifflin County, and Northumberland County, and each of those keeps its own parcel map. A tract near the line by Vicksburg can be split in two county records, so check the adjacent map before you assume the acreage. For a home near Linntown, the Platbookmapper state page links every neighboring county map for Pennsylvania.
Using it on a phone
Most viewers work in a phone browser, useful out on a road near Allenwood, though signal can drop in rural spots. A screenshot of the parcel near Linntown with its ID is a good backup.
Who handles what
Questions about value or the owner field for land near Linntown are handled by the county assessment office, which maintains the tax roll. Zoning, permits and septic questions near Mifflinburg go to planning, building or health offices, and the answer depends on jurisdiction.
Not the same thing
For a tract near Allenwood, a plat book is not a recorded plat: the recorded plat at the Recorder of Deeds is a legal document, and the atlas is just a guide.
How land is described here
Rural deeds near Allenwood are often described by metes and bounds, listing bearings, distances and landmarks. Town lots near Mifflinburg refer to a recorded plat, making them easier to find. Copy the legal description from the record for the parcel near Laurelton for any title or survey request.
Deeds, plats and who keeps them
For land near Shikellamy State Park, the map is an index, not the title: recorded deeds, subdivision plats and easements for parcels in the county are filed with the Recorder of Deeds. Inherited tracts around New Berlin can sit on several deeds, and a title company can sort it out if money is changing hands.
What the map can't tell you
If you're looking near Sand Bridge State Park, acreage on the record is an assessed number; only a licensed surveyor establishes the real lines on the ground. If you're looking near Lewisburg, records update in batches, so a deed recorded last month may not show yet.
Quick answers
How do I research old landowners for land near New Berlin?
It depends, but state archives near Laurelton may have copies.
Where can I buy a plat book for land near Laurelton?
Generally, editions come and go.
Is a plat book the same as a recorded plat around Linntown?
Near Lewisburg, recorded plats are legal documents at the Recorder of Deeds, and plat books are references.
Should I use the PASDA Pennsylvania Tax Parcels viewer instead near Shikellamy State Park?
For a home near Hartleton, the PASDA Pennsylvania Tax Parcels viewer is free and updated more often; many people use both.
How is land described in Pennsylvania deeds near Shikellamy State Park?
For acreage around Lewisburg, Deeds use lot and block, metes and bounds or survey descriptions, and the parcel record often summarizes it.
Open the official Union 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.