Blog · October 14, 2026 · Iowa
Grundy County Flood Zone Map, Iowa: a practical guide
Flood zones are set by FEMA, and checking one near Morrison takes a few minutes.
Main page: Grundy County, IA GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Before an offer near Grundy Center, pull up the Grundy County flood zone map: a mapped flood zone changes insurance, building rules and resale. What this Grundy County guide covers: finding the address on FEMA's map, reading the zone codes, and pairing it with the Grundy County Beacon site.
Where the Grundy County flood zone map lives
For parcel-by-parcel detail, open the National Flood Hazard Layer viewer, which lets you click a spot and read its zone, whether the land is near Beaman or elsewhere in the county. A tract near Morrison without an address can still be found: zoom in from the nearest road and click the spot.
The viewer Grundy County publishes
Lots and tracts near Conrad appear on the Grundy County Beacon site, which opens without registering. For property near Beaman, enter a street address, an owner's name or a parcel number, then pick the result to center the map on it. If you're looking near Grundy Center, the parcel card usually lists the owner of record, assessed acreage, the parcel number and often a sale date.
Getting your bearings
Grundy Center is the county seat, where most land records are kept. You'll also find Beaman, Conrad, Dike, and Holland, each with its own cluster of lots. About 12,384 people live in Grundy County (Census Bureau estimate, 2023) across roughly 502 square miles.
Taking the map into the field
Most viewers work in a phone browser, handy when you're parked on a road near Grundy Center, though signal can drop in rural spots. A screenshot of the parcel near Holland with its ID is a good backup.
Reading A, AE and X
For a tract near Reinbeck, any A or V zone mark the Special Flood Hazard Area, meaning a 1% or greater chance of flooding each year. For acreage around Grundy Center, minimal risk is not no risk: according to FEMA, many claims come from moderate- and low-risk areas.
A word on accuracy
Out toward Conrad, listed acreage is an assessed number; only a licensed surveyor sets the real boundary on the ground. For property near Conrad, records update in batches, so a deed recorded last month can take weeks to appear.
Who handles what
If the acreage or value on a parcel near Dike looks off belong with the County Assessor, since that office keeps the assessment data. Zoning, permits and septic questions near Holland go to planning, building or health offices, and the answer depends on jurisdiction.
When a parcel crosses a boundary
The county touches Black Hawk County, Butler County, Franklin County, Hardin County, and Marshall County; every one of them runs a separate parcel map, especially near Dike. A tract near the line by Morrison may be split across two assessors' files, so open the neighboring map too. For a parcel near Conrad, the Platbookmapper state page lists every neighboring county map across Iowa.
Use the county map alongside FEMA
FEMA's map shows zones but not ownership, so check the Grundy County Beacon site too to see exactly which lot near Conrad you're looking at.
Legal descriptions in Iowa
Iowa is laid out under the Public Land Survey System, which means a tract near Grundy Center is described by section, township and range. A standard section is about one square mile, roughly 640 acres, and a township holds 36 of them, though real sections near Reinbeck vary in size. Write down the legal description for the tract near Conrad for any title or survey request.
Beyond the mapped zones
Creeks and ditches near Dike may not have detailed mapping, so walk the land after rain. Marshy spots near Reinbeck can limit building too; the National Wetlands Inventory mapper shows mapped wetlands.
The paper trail behind a parcel
For anything that matters, get the recorded deed through the County Recorder; the viewer just points to it, which applies near Beaman as much as anywhere. For a home near Grundy Center, use the document number listed on the parcel record and the lookup takes minutes.
A short flood checklist
Ask the seller whether the home has flooded on the property near Grundy Center; getting a quote early avoids surprises.
Money questions tied to the zone
For acreage around Beaman, ask for an Elevation Certificate: it can change the insurance price a lot. Remodeling a house in a zone near Grundy Center usually means extra permit review; check with the county or town building office before you plan.
Frequently asked
What is a LOMA for land near Conrad?
In most cases, FEMA's LOMA process is the usual route when a building near Beaman sits above the base flood elevation; a surveyor's elevation data supports it.
What is a base flood elevation around Reinbeck?
For most people, a BFE near Holland tells builders how high the lowest floor should be; local rules may require building above it.
When is flood insurance required around Reinbeck?
Short answer: lenders generally require it for buildings near Beaman in a Special Flood Hazard Area when the loan is federally regulated or insured; elsewhere it's optional.
Can a property in Zone X near Grundy Center flood?
Good question; Zone X near Reinbeck means moderate (shaded) or minimal (unshaded) mapped risk; many owners buy coverage anyway.
Where do I find the parcel number for land near Grundy Center?
It's the number the County Assessor uses to track a tract near Grundy Center; you'll see it in the viewer and on tax statements.
Open the official Grundy County, IA 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.