Blog · October 14, 2026 · Oregon
Seaside Flood Zone Map: checking a property's flood zone
Flood zones are set by FEMA, and checking one near Gearhart takes a few minutes.
Main page: Clatsop County, OR GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Weighing a property around Hammond? The Seaside flood zone map tells you whether it sits in a FEMA flood zone, and the lookup is free. In this Seaside guide: locating a parcel on FEMA's map, decoding A, AE and X, and pairing it with the ORMAP statewide tax lot viewer.
Checking the Seaside flood zone map step by step
Flood zones come from FEMA's Flood Map Service Center: type an address near Warrenton, and choose the dynamic map. Vacant ground around Gearhart can still be found: pan from the closest town then click the parcel area.
The viewer Clatsop County publishes
Begin with the ORMAP statewide tax lot viewer; it includes every tax parcel in the county, Astoria included. For property near Hammond, type a street address, an owner's name or a parcel number, then pick the result to center the map on it. For land near Gearhart, write down the parcel ID before closing the panel; every office in the county will want it.
Beyond the mapped zones
Creeks and ditches near Hammond aren't always studied in detail, so look for water marks and debris lines. Wet ground around Cannon Beach is a separate issue from flood zones; check the National Wetlands Inventory mapper for a first look.
Where Seaside fits in
Seaside lies within Clatsop County, Oregon, so its parcels are on the county's map. For a tract near Astoria, city or town hall handles matters such as zoning, permits and utilities inside its limits, while the county keeps the tax map. Lots just outside the city limits out by Warrenton usually answers to county rules instead.
What the zone letters mean
Zone AE carries a published BFE, while plain Zone A does not; that elevation drives building rules near Gearhart. For a home near Astoria, a shaded X area marks moderate flood hazard, roughly the 100- to 500-year range; plain X, or C on older maps, is minimal risk.
What to request from a seller
Request about past flood claims on the property near Astoria; an insurance quote early keeps the budget honest.
Recorded documents worth pulling
When the details count, request the recorded deed from the County Clerk; the parcel map near Astoria only summarizes it. Long-held tracts near Astoria may sit on several deeds, and a title company earns its fee before a purchase.
Land on the county line
Clatsop County borders Columbia County, Tillamook County, Washington County, Pacific County, WA, and Wahkiakum County, WA, and each of those keeps its own parcel map. Acreage along the edge near Gearhart can be split in two county records, so look at the neighboring map before you assume the acreage. For property near Gearhart, our state page lists each neighboring county map across Oregon.
Getting answers from the right desk
For assessment questions about property around Astoria belong with the County Assessor, which maintains the tax roll. Building or septic questions for a lot near Warrenton need the planning or permitting office, and the answer depends on jurisdiction.
Parcel lines plus flood zones
FEMA's map shows zones but not ownership, so check the ORMAP statewide tax lot viewer too to see exactly which lot near Astoria you're looking at.
Getting your bearings
Astoria is the county seat, where most land records are kept. You'll also find Gearhart, Cannon Beach, and Warrenton, where town lots give way to larger tracts. About 41,102 people call Clatsop County home (Census Bureau estimate, 2023) across about 828 square miles. Clatsop County dates to 1844, so old deeds can run back a long way. Places such as Julia Butler Hansen National Wildlife Refuge make handy reference points on the map near Cannon Beach.
A word on accuracy
Tax maps are drawn for assessment, not surveyed, so the edge of a yard near Warrenton can sit some distance off the line on screen. For acreage around Gearhart, records update in batches, so a deed recorded last month can take weeks to appear.
Insurance, lenders and building
Near Cannon Beach, get the Elevation Certificate if one exists: it records the building's elevation against the base flood. New construction in a floodplain near Warrenton usually means extra permit review; call the permitting office early.
Taking the map into the field
The parcel map usually runs in a mobile browser, useful out on a road near Gearhart, though signal can drop in rural spots. A printout of the tract near Gearhart is a good backup.
Frequently asked
Is there a flood layer on the parcel viewer near Cannon Beach?
It depends, but a flood layer may appear in the ORMAP statewide tax lot viewer layer list; confirm a lot near Astoria on FEMA's map either way.
Is my property near Warrenton in a flood zone?
Short answer: FEMA's free map shows the zone for any spot near Astoria, and the zone code appears on the map.
Do I need flood insurance in Seaside?
It depends, but lenders generally require it for buildings near Cannon Beach in a Special Flood Hazard Area when the loan is federally regulated or insured; outside those zones it's your call.
What is a base flood elevation near Gearhart?
In most cases, a BFE near Gearhart tells builders how high the lowest floor should be; local rules may require building above it.
Which office handles records for land near Gearhart?
Values are the County Assessor's job; recorded documents belong to the County Clerk; planning offices cover zoning near Warrenton
Open the official Clatsop County, OR 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.