Blog · October 14, 2026 · Maine
Knox County Plat Book (Maine)
Township atlases, old editions and current owners in Knox County, starting near Hope.
Main page: Knox County, ME GIS & Parcel Viewer (official map link, Knox County facts and neighboring maps).
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Old copies of the Knox County plat book turn up at auctions and in kitchen drawers around Cushing, and new ones are harder to track down. This guide covers finding a printed edition for Knox County, Maine, and using the free parcel map in the meantime.
Plat books vs. recorded plats in Knox County
Private publishers compile plat books from county records, so a county edition is a snapshot of who owned land near Cushing the year it was printed. It's different from a recorded plat, which is the official survey drawing for a subdivision in Cushing filed with the county.
Opening the Knox County parcel viewer
Knox County parcels are viewed through a statewide map, the Maine GeoLibrary Parcel Viewer; zoom toward Isle au Haut to reach them. Use the search box for an address in Isle au Haut or a parcel number, or simply zoom in and click a property near Appleton. Bookmark our Knox County page too; it tracks the official Maine link if it moves and lists the maps around Isle au Haut.
Getting oriented in Knox County, ME
From Rockland, the seat of the county, the map spreads out to Appleton, Camden, Cushing, and Friendship. Unincorporated communities in the county, including Matinicus Isle, Criehaven, and Muscle Ridge Islands, show up as small groups of parcels along the roads. Census Bureau estimates put Knox County at about 40,977 residents in 2023 on roughly 365 square miles of land. The Knox County map mixes subdivision lots near Hope with farm and wooded tracts farther out. Knox County was organized in 1860, so deeds for older farms near Appleton can run back a long way.
Deeds and plats behind the Knox County map
For land near Hope, the deed itself lives in the county recording office, and the map is an index to it. Easements and access rights near Camden live in recorded documents, so read the deed, not just the county map.
Where Knox County plat books turn up
Private publishers have printed plat books for many rural counties, but editions for Knox County come and go; check at the courthouse, the extension office or a farm supply store in Cushing. An old atlas can help trace when a property near Hope split off from a larger farm.
Atlas details and limits
A typical atlas page for a township near Rockland shows sections, roads and streams, with each ownership block labeled. Owner names in an older Knox County edition may be decades out of date, so confirm on the county map before contacting anyone near Matinicus Isle. For a land purchase near Hope, rely on the county parcel record and a title search, not an atlas.
Making your own atlas of Knox County
Farm families near Isle au Haut often keep successive editions of the Knox County plat book, which together show how ownership shifted over decades. If you cannot track down a printed edition, a screenshot of each township from the county map works as a decent homemade atlas for the area around Isle au Haut.
What drives land use around Rockland
Knox County's 2022 business count was 1,823 establishments, with retail trade, construction, and other services the largest groups. Compared with national shares, Knox County leans toward fishing, hunting and trapping and scenic and sightseeing transportation, which shapes demand for land near Cushing.
Using the Knox County map as a modern plat book
For current ownership, the free Maine GeoLibrary Parcel Viewer beats any printed book: owners update as deeds are processed, and you can click any property near Cushing. Print a screenshot of the tracts around Cushing if you want a paper copy in the truck.
Knox County, ME: common questions
Is a plat book the same as a recorded plat for a lot in Isle au Haut?
No; a lot in Isle au Haut answers to its recorded plat, and the county atlas is a reference, nothing more.
Should I use the Knox County, Maine parcel map instead of a plat book?
For current owners near Appleton, yes; the Maine GeoLibrary Parcel Viewer updates as deeds are processed.
Are older plat books for Knox County, Maine online?
Check the library in Isle au Haut, local historical groups and estate sales for older Knox County editions.
Can I buy a new plat book for Knox County, Maine?
It depends on if a publisher has a county edition in print; local offices in Isle au Haut usually know.
Can I use a plat book to track down lot lines near Isle au Haut?
It shows approximate ownership blocks; for lines near Isle au Haut, use recorded plats and surveys.
Open the official Knox County, ME parcel map Knox 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.