Blog · October 14, 2026 · Pennsylvania
Using the Kennett Square Flood Zone Map
The zone on FEMA's map affects insurance, building and resale near South Coatesville.
Main page: Chester County, PA GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Weighing a property around Coatesville? The Kennett Square flood zone map tells you whether it sits in a FEMA flood zone, and no account is needed. What this Kennett Square guide covers: locating a parcel on FEMA's map, decoding A, AE and X, and pairing it with the Chester County parcel viewer.
Where the Kennett Square flood zone map lives
Flood zones come from FEMA's Flood Map Service Center: type an address near Avondale, and choose the dynamic map. Rural land near Avondale with no street number is still easy to locate: pan from the closest town and click the spot.
Pulling up a parcel
Parcels around Avondale appear on the Chester County parcel viewer, free to use and open without a login. Out toward South Coatesville, type a street address, an owner's name or a parcel number, then pick the result to center the map on it. In and around Coatesville, the record panel typically gives the owner of record, acreage on the tax roll, the parcel number and often a sale date.
Kennett Square and the county around it
Kennett Square is part of Chester County, Pennsylvania, so its parcels are on the county's map. Local government in Kennett Square handles things like zoning, permits and utilities for lots inside the boundary, and the county still keeps the parcel and deed records. Lots just outside the town limits near West Grove usually answers to county rules rather than the town's.
How land is described here
Tracts outside towns near Avondale commonly use metes-and-bounds descriptions, listing bearings, distances and landmarks. Subdivision lots in South Coatesville refer to a recorded plat, making them easier to find. Write down the legal description for the tract near South Coatesville when you talk to a surveyor.
Places you'll see on the map
West Chester is the county seat, which is where the courthouse records live. Other places on the map include Avondale, West Grove, and Modena, where town lots give way to larger tracts. About 549,784 people call Chester County home (Census Bureau estimate, 2023) across roughly 751 square miles. Chester County was organized in 1682, which matters when you trace an old farm's title. Landmarks such as French Creek State Park make handy reference points on the map near Modena.
Low spots and local drainage
Small streams around South Coatesville may not have detailed mapping, so walk the land after rain. Wet ground around South Coatesville is a separate issue from flood zones; the National Wetlands Inventory mapper shows mapped wetlands.
A short flood checklist
Ask the listing agent for any Elevation Certificate on the property near Modena; an insurance quote early keeps the budget honest.
What the map can't tell you
Acreage on the record is an assessed number; only a licensed surveyor establishes the real lines on land around Coatesville. Owner names and values update on a schedule, so a fresh transfer around Avondale may not show yet.
Reading A, AE and X
If the land is near Avondale, any A or V zone are Special Flood Hazard Areas, land with a 1-percent chance of flooding in any year. If you're looking near Modena, a shaded X area is moderate risk, between the 1% and 0.2% annual chance floods; plain X, or C on older maps, means minimal mapped risk.
Matching the zone to the lot lines
FEMA's map shows zones but not ownership, so pair it with the Chester County parcel viewer to confirm you have the right parcel near West Grove.
Offices that can help
If the acreage or value on a parcel near Coatesville looks off are handled by the county assessment office, since that office keeps the assessment data. Zoning, permits and septic questions near Modena are for the local planning and health departments, and the answer depends on jurisdiction.
Taking the map into the field
Most viewers work in a phone browser, useful out on a road near West Grove, so load it before you lose signal. A saved image of the lot near West Grove and its lines is a good backup.
What a flood zone means for a buyer
For property near West Chester, get the Elevation Certificate if one exists: it records the building's elevation against the base flood. Building or adding on near West Chester in a mapped zone often needs a floodplain permit; call the permitting office early.
Frequently asked
Is flood insurance mandatory near Avondale?
Lenders generally require it for buildings near Coatesville in a Special Flood Hazard Area when the loan is federally regulated or insured; elsewhere it's optional.
Is AE a high-risk flood zone in Kennett Square?
It depends, but an AE zone has a 1% annual chance of flooding and a base flood elevation, which shapes building rules near West Grove.
What is a LOMA for land near West Grove?
Generally, you can ask FEMA for a LOMA if surveyed elevations show the building near Coatesville is above the BFE; a surveyor's elevation data supports it.
Where do I find the BFE for a lot near West Chester?
For most people, a BFE near South Coatesville tells builders how high the lowest floor should be, and an Elevation Certificate compares the building to it.
Is there an app for the parcel map near Coatesville?
No app is needed for most county viewers; load it before you lose coverage near West Grove.
Open the official Chester 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.