Blog · October 14, 2026 · New York
Olean Flood Zone Map: checking a property's flood zone
The zone on FEMA's map affects insurance, building and resale near Salamanca.
Main page: Cattaraugus County, NY GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Before an offer near Portville, look at the Olean flood zone map: FEMA's zone label affects insurance, building rules and resale. Covered here for Olean: locating a parcel on FEMA's map, decoding A, AE and X, and pairing it with the Cattaraugus County ArcGIS parcel map.
The Olean flood zone map: start here
Start with FEMA's Flood Map Service Center: type an address near Little Valley, then open the map view for that panel. Vacant ground around Salamanca can still be found: zoom in from Interstate 86 then click the parcel area.
Pulling up a parcel
Go first to the Cattaraugus County ArcGIS parcel map; it maps each tax parcel from Ellicottville to Allegany. For a home near Ellicottville, type a street address, an owner's name or a parcel number, and the viewer zooms to the match. For land near Ellicottville, the parcel card normally shows the owner of record, assessed acreage, a parcel ID and in many cases the last transfer.
Olean and the county around it
Olean lies within Cattaraugus County, New York, which means parcel data comes from the county. In and around Ellicottville, city or town hall handles things like zoning, permits and utilities within town limits, while the county keeps the tax map. Lots just outside the city limits out by Salamanca often falls under county rules, not municipal ones.
On site with the map
Most viewers work in a phone browser, handy when you're parked on a road near Portville, though signal can drop in rural spots. A saved image of the lot near Portville and its lines is a good backup.
What to request from a seller
Ask the listing agent about past flood claims on the property near Salamanca; an insurance quote early keeps the budget honest.
Sections, lots and bearings
Rural deeds near Ellicottville commonly use metes-and-bounds descriptions, which trace the boundary call by call. Platted lots around Little Valley are typically described by lot and block, which is simpler to follow. Copy the legal description from the record for the parcel near Franklinville before you request a deed or survey.
Zones on the Olean flood zone map
Near Little Valley, zones beginning with A or V mark the Special Flood Hazard Area, meaning a 1% or greater chance of flooding each year. For a parcel near Franklinville, shaded Zone X marks moderate flood hazard, roughly the 100- to 500-year range; plain X, or C on older maps, is minimal risk.
Parcel lines plus flood zones
FEMA doesn't draw property lines, so pair it with the Cattaraugus County ArcGIS parcel map to see exactly which lot near Little Valley you're looking at.
Next door to Cattaraugus County
Cattaraugus County meets Allegany County, Chautauqua County, Erie County, Wyoming County, and McKean County, PA, and each of those keeps its own parcel map. Acreage along the edge near Ellicottville may be split in two county records, so look at the adjacent map as well. For a parcel near Ellicottville, the Platbookmapper state page links every bordering county map across New York.
Insurance, lenders and building
For land near Salamanca, ask for an Elevation Certificate: it compares the building to the BFE. New construction in a floodplain near Portville often needs a floodplain permit; call the permitting office early.
The paper trail behind a parcel
Before you sign anything, request the recorded deed from the County Clerk; the parcel map near Franklinville only summarizes it. Long-held tracts around Allegany may trace back through a long string of deeds, and a title company can sort it out before a purchase.
A quick look at the area
Little Valley serves as the county seat, where most land records are kept. Smaller places on the map include Allegany, Portville, Salamanca, and Franklinville, where town lots give way to larger tracts. Around 75,600 people call Cattaraugus County home (Census Bureau estimate, 2023) spread over about 1,308 square miles. Cattaraugus County was organized in 1817, which matters when you trace an old farm's title.
Water near Portville
Creeks and ditches near Salamanca aren't always studied in detail, so look for water marks and debris lines. Marshy spots near Franklinville can limit building too; check the National Wetlands Inventory mapper for a first look.
Questions about the Olean flood zone map
What is a base flood elevation in Olean?
For most people, the base flood elevation is the water level expected in the 1% annual chance flood; surveyors near Salamanca use it often.
Can a property in Zone X near Portville flood?
Good question; Zone X near Allegany means moderate (shaded) or minimal (unshaded) mapped risk; many owners near Ellicottville buy coverage anyway.
Can a flood zone near Allegany change?
Zones near Ellicottville can shift when FEMA updates a panel; check the effective date on the panel.
What is a LOMA in Olean?
It depends, but you can ask FEMA for a LOMA if surveyed elevations show the building near Ellicottville is above the BFE, and lenders accept the result.
What's the tax parcel number used for near Salamanca?
It's the number the county Real Property Tax Services office uses to track a tract near Salamanca, and it's on the record panel and tax bills.
Open the official Cattaraugus County, NY 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.