Blog · October 13, 2026 · Maine
Knox County, Maine: GIS Map Guide
Open the official Knox County parcel viewer, find an owner or a vacant tract, and learn which land records back up what the map shows.
Main page: Knox County, ME GIS & Parcel Viewer (official map link, Knox 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.
The Knox County GIS map turns a drive past an empty field near Camden into a name, a parcel number and an acreage figure.
Below are the official links, a quick tour of Knox County's towns and land, and the steps for turning a parcel click into a reliable answer.
What the map covers, from Rockland to the back roads
Rockland is the county seat, and other towns on the map include Appleton, Camden, Cushing, and Friendship. Crossroads communities such as Matinicus Isle, Criehaven, and Muscle Ridge Islands have their own small clusters of lots. The county's land area is about 365 square miles, and the Census Bureau estimated 40,977 residents there in 2023. The mix of town lots in Rockland and rural acreage beyond makes the Knox County parcel map useful for house hunters and land buyers alike. Camden Hills State Park, Franklin Island National Wildlife Refuge, and Seal Island National Wildlife Refuge are a big draw, and the private tracts that border public land are often the first ones hunters and cabin buyers ask about.
The Knox County economy in brief
Of the 1,823 establishments the Census Bureau counted in Knox County for 2022, the biggest groups were retail trade, construction, and other services. Compared with the nation, the county has an unusually high share of businesses in fishing, hunting and trapping, scenic and sightseeing transportation, and textile product mills. That usually means steady interest in cabin lots and recreation parcels around Isle au Haut.
Finding a parcel in Knox County
Open the statewide Maine GeoLibrary Parcel Viewer and zoom toward Camden; Knox County's parcels are part of that layer. Use the search box to find a Knox County parcel by owner name, address or parcel number, or zoom in and click a lot to open its record. We track the link on our Knox County directory page, so check there if it stops loading.
Acreage and vacant lot search
Five steps for vacant land in Knox County:
- Follow the roads out of Hope with aerials on and mark every tract without a rooftop.
- Check who owns each open tract near Cushing and where the tax bill goes.
- Compare land values on similar Knox County tracts to see whether an asking price is in the ballpark.
- Make sure the parcel near Isle au Haut actually touches a public road, and ask how it's reached if it doesn't.
- Last, call the Knox County planning or health office about permits, septic and floodplain before you commit.
To double-check acreage on a parcel near Matinicus Isle, see how to find the acreage of a property.
Who's clicking on Knox County parcels
Here's who tends to use it in Knox County.
- Relocating buyers who can't visit Camden in person use the map and aerial layer to size up a lot from a distance.
- For a new build outside Isle au Haut, the parcel record supplies the lot size and legal description a site plan needs.
- First-time land buyers near Matinicus Isle use the map to find unbuilt tracts and contact owners directly.
- Deer hunters scouting the woods between Rockland and Camden use the parcel lines to see how many owners share one ridge or creek bottom.
What the Knox County GIS map shows about lot lines
Zoom in far enough on a lot in Rockland and you may notice lines crossing driveways or splitting sheds, a normal quirk of tax mapping. Rural tracts near Isle au Haut follow metes-and-bounds calls, so their shapes on the map track creeks, roads and old fences. A survey is the only document that settles where a Knox County boundary actually runs.
Behind the map: land records in Knox County
The map near Camden is only as good as the deeds behind it, and those are kept in the county's recording office. The office title varies by state (register of deeds, recorder, county clerk or clerk of court), so check the Knox County government website for the right one. Copy the parcel ID and legal description before you call or visit; recording staff can find a Knox County document much faster with them.
Nearby parcel maps
Looking at land between Friendship and the Hancock County line? Remember that Hancock County, Lincoln County, and Waldo County each keep separate parcel records. Our Maine directory links each one.
Frequently asked questions
Can I find the owner of a vacant lot in Knox County?
Look up the address in Isle au Haut, or click the tract. Owner names on the Knox County map come from recorded deeds.
Can I use the Knox County map to hunt private land?
Use it to find the owner of a woodlot near Isle au Haut, then ask; the map itself grants no hunting rights.
Does Knox County have a plat book?
Whether a current printed edition exists for Knox County varies; the free online map covering Rockland and the rest of the county is the dependable option.
How can I see my lot lines in Knox County?
Map first, then the recorded plat or deed, then a survey: that order works for any boundary question in Knox County.
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.