Blog · October 14, 2026 · Maine
Knox County Flood Zone Map, Maine: a practical guide
The zone on FEMA's map affects insurance, building and resale near Franklin Island National Wildlife Refuge.
Main page: Knox County, ME GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Weighing a property around Camden Hills State Park? Checking the Knox County flood zone map reveals whether it sits in a FEMA flood zone, and the lookup is free. What this Knox County guide covers: locating a parcel on FEMA's map, decoding A, AE and X, and confirming the outline on the county map.
Where the Knox County flood zone map lives
If you're looking near Isle au Haut, flood zones come from FEMA's Flood Map Service Center: enter the street address, and choose the dynamic map. Vacant ground around Isle au Haut can still be found: zoom in from the nearest road and click inside the land.
Pulling up a parcel
Lots and tracts near Franklin Island National Wildlife Refuge appear on the Maine GeoLibrary Parcel Viewer, a viewer that needs no account. In and around Rockland, type a street address, an owner's name or a parcel number, and the viewer zooms to the match. If the land is near Camden Hills State Park, write down the parcel ID while you have it open; every clerk in the county asks for it first.
Zones on the Knox County flood zone map
Zone AE carries a published BFE, and an unnumbered A zone has none; surveyors near Seal Island National Wildlife Refuge use that number. For a home near Glen Cove, minimal risk is not no risk: according to FEMA, many claims come from moderate- and low-risk areas.
A word on accuracy
Tax maps are drawn for assessment, not measured on the ground, so a tree line near Isle au Haut may sit a few yards off the line on screen. Owner names and values update on a schedule, so a recent sale near Isle au Haut may not show yet.
Use the county map alongside FEMA
FEMA doesn't draw property lines, so check the Maine GeoLibrary Parcel Viewer too to confirm you have the right parcel near Glen Cove.
Offices that can help
For assessment questions about property around Matinicus Isle belong with the town assessor, which maintains the tax roll. Building or septic questions for a lot near Franklin Island National Wildlife Refuge go to planning, building or health offices, depending on whether the land is inside town limits.
Deeds, plats and who keeps them
Before you sign anything, pull the recorded deed from the county Registry of Deeds; the parcel map near Franklin Island National Wildlife Refuge only summarizes it. If the land is near Hope, use the instrument number shown in the record panel and the lookup takes minutes.
Knox County in a few facts
Rockland is the county seat, home to the main records offices. You'll also find Appleton, Camden, Cushing, and Friendship, where town lots give way to larger tracts. Around 40,977 people call Knox County home (Census Bureau estimate, 2023) on about 365 square miles. Knox County dates to 1860, and some chains of title near Matinicus Isle are long. Places such as Camden Hills State Park are easy to spot when you zoom out.
Water near Cushing
Small streams around Isle au Haut may not have detailed mapping, so ask neighbors about past flooding. Wetlands near Muscle Ridge Islands can limit building even outside a flood zone; the National Wetlands Inventory mapper shows mapped wetlands.
Legal descriptions in Maine
Tracts outside towns near Isle au Haut are often described by metes and bounds, a series of courses and distances from a starting point. Town lots near Muscle Ridge Islands are typically described by lot and block, making them easier to find. Copy the legal description from the record for the parcel near Isle au Haut before you request a deed or survey.
A short flood checklist
Ask the seller whether the home has flooded for the house near Camden Hills State Park; an insurance quote early keeps the budget honest.
Money questions tied to the zone
For a tract near Isle au Haut, get the Elevation Certificate if one exists: it records the building's elevation against the base flood. Remodeling a house in a zone near Isle au Haut can trigger elevation rules; call the permitting office early.
Questions about the Knox County flood zone map
Can I see flood zones on the Maine GeoLibrary Parcel Viewer in Knox County?
Generally, a flood layer may appear in the Maine GeoLibrary Parcel Viewer layer list; confirm a lot near Criehaven on FEMA's map either way.
Is my property near Hope in a flood zone?
Short answer: search the address near Thomaston on FEMA's Flood Map Service Center, which takes a couple of minutes.
What is a LOMA around Isle au Haut?
Good question; FEMA's LOMA process is the usual route when a building near Appleton sits above the base flood elevation; a surveyor's elevation data supports it.
When is flood insurance required for land near Muscle Ridge Islands?
Generally, for a building near Isle au Haut in an A or V zone with a federally backed or regulated mortgage, it's generally required; outside those zones it's your call.
Which office handles records for land near Hope?
Closer to Criehaven, values are the town assessor's job; recorded documents belong to the county Registry of Deeds, while zoning questions go to planning
Open the official Knox County, ME 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.