Blog · October 17, 2026 · Pennsylvania
Reading the Cornwall Flood Zone Map for a parcel
The zone on FEMA's map affects insurance, building and resale near Myerstown.
Main page: Lebanon County, PA GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Weighing a property around Myerstown? A quick look at the Cornwall flood zone map shows whether FEMA puts it in a high-risk zone, and the lookup is free. This Cornwall guide covers: locating a parcel on FEMA's map, reading the zone codes, and pairing it with the Lebanon County ArcGIS parcel map.
Checking the Cornwall flood zone map step by step
The official source is FEMA's Flood Map Service Center: search an address around Palmyra, and choose the dynamic map. Vacant ground around Mount Gretna is still easy to locate: search the nearest road and click inside the land.
The free map to start with
Go first to the Lebanon County ArcGIS parcel map; it includes each tax parcel in the county, Cleona included. With a lot near Cleona, put in a street address, an owner's name or a parcel number, then pick the result to center the map on it. For acreage around Cleona, the record panel usually lists the owner of record, acreage on the tax roll, the parcel number and in many cases the last transfer.
When a parcel crosses a boundary
Lebanon County meets Berks County, Dauphin County, Lancaster County, and Schuylkill County, all with their own assessor records. Acreage along the edge near Cleona can show up across two assessors' files, so check the neighboring map before you assume the acreage. If you're looking near Cleona, our state page lists each bordering county map for Pennsylvania.
Getting your bearings
Lebanon serves as the county seat, where most land records are kept. You'll also find Mount Gretna, Cleona, and Myerstown, where town lots give way to larger tracts. Roughly 144,252 people call Lebanon County home (Census Bureau estimate, 2023) on about 362 square miles. Lebanon County dates to 1813, so old deeds can run back a long way.
How land is described here
Rural deeds near Mount Gretna are often described by metes and bounds, listing bearings, distances and landmarks. Town lots near Cleona are typically described by lot and block, making them easier to find. Write down the legal description for the tract near Myerstown when you talk to a surveyor.
Cornwall, PA: the basics
Cornwall is part of Lebanon County, Pennsylvania, so its parcels are on the county's map. Out toward Palmyra, the municipality handles things like zoning, permits and utilities within town limits, but the county runs assessment and recording. Acreage past the city limits out by Palmyra usually falls under county rules, not municipal ones.
Who handles what
If the acreage or value on a parcel near Cleona looks off are handled by the county assessment office, since that office keeps the assessment data. Questions about what you can build around Myerstown need the planning or permitting office, and the answer depends on jurisdiction.
Zones on the Cornwall flood zone map
For acreage around Cleona, zones beginning with A or V mark the Special Flood Hazard Area, meaning a 1% or greater chance of flooding each year. If you're looking near Mount Gretna, shaded Zone X marks moderate flood hazard, between the 1% and 0.2% annual chance floods; unshaded X is minimal risk.
Before you lean on the lines
Parcel lines are drawn for taxes, not measured on the ground, so the edge of a yard near Mount Gretna may sit several feet off the line on screen. Closer to Mount Gretna, records update in batches, so a deed recorded last month can take weeks to appear.
Water near Lebanon
Creeks and ditches near Mount Gretna may not have detailed mapping, so look for water marks and debris lines. Wetlands near Richland can limit building even outside a flood zone; check the National Wetlands Inventory mapper for a first look.
Lining it up with the parcel map
FEMA doesn't draw property lines, so check the Lebanon County ArcGIS parcel map too to confirm you have the right parcel near Myerstown.
Lenders and permits
Around Cleona, get the Elevation Certificate if one exists: it records the building's elevation against the base flood. New construction in a floodplain near Richland usually means extra permit review; ask the local floodplain administrator early.
Questions to ask before you buy
Ask the listing agent whether the home has flooded for the house near Richland; an insurance quote early avoids surprises.
Cornwall: common questions
What if the flood map is wrong for my lot near Palmyra?
FEMA's LOMA process is the usual route when a building near Cleona sits above the base flood elevation; it starts with an elevation survey.
What does an AE label mean for a lot near Cleona?
Short answer: AE is a Special Flood Hazard Area with a published base flood elevation, so builders near Cleona design to that elevation.
Is Zone X safe from flooding around Cleona?
Shaded X is moderate risk and unshaded X is minimal risk; many owners near Lebanon buy coverage anyway.
How can I tell if a house near Mount Gretna is in a flood zone?
In most cases, search the address near Palmyra on FEMA's Flood Map Service Center, which takes a couple of minutes.
How is land described in Pennsylvania deeds near Mount Gretna?
For acreage around Mount Gretna, Deeds use lot and block, metes and bounds or survey descriptions; copy it for any survey or title request.
Open the official Lebanon 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.