Blog · October 14, 2026 · Oregon
Union County Flood Zone Map, Oregon: a practical guide
Flood zones are set by FEMA, and checking one near Island City takes a few minutes.
Main page: Union County, OR GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Weighing a property around Summerville? The Union County flood zone map tells you whether it sits in a FEMA flood zone, and it costs nothing to check. What this Union County guide covers: finding the address on FEMA's map, reading the zone codes, and matching it with the county parcel viewer.
Checking the Union County flood zone map step by step
If you're looking near Alicel, the official source is FEMA's Flood Map Service Center: enter the street address, then open the map view for that panel. Vacant ground around Cove is still easy to locate: zoom in from the nearest road and click inside the land.
Opening the official parcel viewer
Property in and around Hilgard appear on the ORMAP statewide tax lot viewer, which opens without registering. If you only know roughly where the land is, zoom in from La Grande and click the parcel itself. If you're looking near Hot Lake, copy the parcel ID before closing the panel; every clerk in the county asks for it first.
Where the recorded documents are
The map is an index, not the title: deeds, plats and easements covering ground around North Powder are kept by the County Clerk. Long-held tracts around Elgin may sit on several deeds, and a title company earns its fee on a real sale.
What to request from a seller
Ask the listing agent about past flood claims on the property near Island City; getting a quote early avoids surprises.
Reading the legal description
Oregon follows the Public Land Survey System, so rural legal descriptions near Kamela cite section, township and range. Each section is nominally a mile square, about 640 acres, with 36 sections to a township, though corrections make some sections near La Grande odd-sized. Copy the legal description from the record for the parcel near Camp Elkanah for any title or survey request.
Getting answers from the right desk
Deeds, mortgages and recorded plats for land near Kamela sit in the index kept by the County Clerk, usually searchable by name or document number. Zoning, permits and septic questions near North Powder go to planning, building or health offices, depending on whether the land is inside town limits.
Limits of the parcel data
Out toward Hot Lake, acreage on the record is an estimate; only a licensed surveyor can set the real corners on the ground. If you're looking near Alicel, owner names and values update on a schedule, so a deed recorded last month can take weeks to appear.
Low spots and local drainage
Low-lying fields near Cove aren't always studied in detail, so ask neighbors about past flooding. Marshy spots near Camp Elkanah can limit building too; the National Wetlands Inventory mapper shows mapped wetlands.
Next door to Union County
Union County borders Baker County, Grant County, Umatilla County, and Wallowa County, and each of those keeps its own parcel map. Acreage along the edge near Summerville may be split across two assessors' files, so look at the adjacent map before you assume the acreage. In and around La Grande, the Platbookmapper state page lists each bordering county map across Oregon.
Decoding the flood zone labels
If the land is near La Grande, any A or V zone are Special Flood Hazard Areas, meaning a 1% or greater chance of flooding each year. Out toward North Powder, a low-risk label isn't a guarantee: according to FEMA, floods happen outside mapped zones too.
Lining it up with the parcel map
FEMA's map shows zones but not ownership, so pair it with the ORMAP statewide tax lot viewer to confirm you have the right parcel near La Grande.
Using it on a phone
The parcel map usually runs in a mobile browser, handy when you're parked on a road near Camp Elkanah, though signal can drop in rural spots. A screenshot of the parcel near North Powder with its ID helps when you meet an owner or agent.
Places you'll see on the map
La Grande holds the county offices, where most land records are kept. You'll also find Cove, Elgin, Imbler, and Island City, each with its own cluster of lots. Roughly 25,944 people live in Union County (Census Bureau estimate, 2023) on some 2,037 square miles. Union County dates to 1864, which matters when you trace an old farm's title.
Insurance, lenders and building
In and around Imbler, ask for an Elevation Certificate: it records the building's elevation against the base flood. New construction in a floodplain near Island City can trigger elevation rules; call the permitting office before you plan.
Questions about the Union County flood zone map
Why does the BFE matter near Camp Elkanah?
For a parcel near North Powder, the BFE is printed in AE zones on FEMA's map; local rules may require building above it.
Is my property near Summerville in a flood zone?
Short answer: FEMA's free map shows the zone for any spot near Hilgard, and the zone code appears on the map.
How often are flood maps updated around Imbler?
Short answer: zones near Cove can shift when FEMA updates a panel, so look at the panel date.
What is a LOMA around Imbler?
For most people, you can ask FEMA for a LOMA if surveyed elevations show the building near North Powder is above the BFE; it starts with an elevation survey.
How is land described in Oregon deeds for land near Kamela?
For a parcel near Imbler, deeds use lot and block, metes and bounds or survey descriptions; a surveyor can interpret it.
Open the official Union 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.