Blog · October 14, 2026 · New York
St. Lawrence County Plat Book, New York
What a St. Lawrence County plat book is, where to track down one around Colton, and the free map that covers the gaps.
Main page: St. Lawrence County, NY GIS & Parcel Viewer (official map link, St. Lawrence County facts and neighboring maps).
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Looking for a St. Lawrence County plat book? Plenty of people around Brasher still want a paper atlas with owner names on every section. We'll cover what's in one, where St. Lawrence County copies turn up, and how the county's free map fills the gaps.
What's inside a county plat book
A plat book, sometimes called a land atlas, shows each township in St. Lawrence County as a page, with ownership blocks labeled by owner name and rough acreage. It's different from a recorded plat, which is the official survey drawing for a subdivision in De Peyster filed with the county.
Search St. Lawrence County parcels by owner, address or ID
St. Lawrence County parcels are viewed through a statewide map, the NYS Tax Parcels Public layer in ArcGIS Map Viewer; zoom toward De Peyster to reach them. Click any St. Lawrence County parcel near De Peyster to open its record: owner, parcel ID and assessed acreage are most often listed. Bookmark our St. Lawrence County page too; it tracks the official New York link if it moves and lists the maps around De Peyster.
Finding a printed St. Lawrence County plat book
Private publishers have printed plat books for many rural counties, but editions for St. Lawrence County come and go; check at the courthouse, the extension office or a farm supply store in De Peyster. Collectors and genealogists prize old St. Lawrence County atlases as they display farm names and owners near Helena long before online maps.
Atlas details and limits
Many atlases add rural residence listings and road maps, handy on back roads near Helena. Owner names in an older St. Lawrence County edition may be decades out of date, so confirm on the county map before contacting anyone near Helena. Genealogists in New York often pair an old St. Lawrence County atlas with deed records to follow a farm through the generations.
Editions, deeds and printouts
Comparing two St. Lawrence County editions side by side shows when a farm near Brasher was split or sold. Some buyers print the county parcel map at township scale to carry on back roads near Brasher.
The St. Lawrence County economy in brief
St. Lawrence County's 2022 business count was 1,845 establishments, with retail trade, accommodation and food services, and health care and social assistance the largest groups. Compared with national shares, St. Lawrence County leans toward hospitals and mining (except oil and gas), which shapes demand for land near Clifton.
Towns and land across St. Lawrence County
From Canton, the seat of the county, the map spreads out to Brasher, Clare, Clifton, and Colton. Smaller places such as Balmat, Conifer, and Crary Mills appear on the St. Lawrence County map as little clusters of lots. Roughly 2,680 square miles of land and about 106,940 residents (2023 estimate) make up St. Lawrence County. Beyond the town lots in De Peyster, expect big rural parcels across the county.
Neighboring maps around St. Lawrence County
A farm near the county line can carry separate records in Franklin County, Hamilton County, and Herkimer County as well. Every map bordering St. Lawrence County is listed on our New York directory.
The free online alternative
For current ownership, the free NYS Tax Parcels Public layer in ArcGIS Map Viewer beats any printed book: owners update as deeds are processed, and you can click any piece of ground near De Peyster. Print a screenshot of the tracts around De Peyster if you want a paper copy in the truck.
St. Lawrence County plat book questions
Is there a current plat book for St. Lawrence County, New York?
It depends on whether a publisher has a county edition in print; local offices in De Peyster most often know.
Does a St. Lawrence County plat book display property lines?
It shows rough ownership blocks; for lines near De Peyster, use recorded plats and surveys.
What is the difference between a plat book and a plat in St. Lawrence County?
No; a lot in De Peyster answers to its recorded plat, and the county atlas is just a reference.
Are older plat books for St. Lawrence County, New York online?
Check the library in De Peyster, local historical groups and estate sales for older St. Lawrence County editions.
Should I use the St. Lawrence County, New York parcel map instead of a plat book?
For current owners near Colton, yes; the NYS Tax Parcels Public layer in ArcGIS Map Viewer updates as deeds are processed.
Open the official St. Lawrence County, NY parcel map St. Lawrence County 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.