Blog · October 14, 2026 · Iowa
Using the Mahaska County Flood Zone Map
Flood zones are set by FEMA, and checking one near Keomah Village takes a few minutes.
Main page: Mahaska County, IA GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Before you buy or build near Beacon, check the Mahaska County flood zone map: a mapped flood zone changes insurance, permits and resale. This county guide covers: locating a parcel on FEMA's map, reading the zone codes, and pairing it with the county Beacon site.
Checking the Mahaska County flood zone map step by step
For a more interactive look, open the National Flood Hazard Layer viewer, where zone shading sits over a photo base, and that holds around Barnes City too. Rural land near Keomah Village with no street number can still be found: zoom in from the nearest road then click the parcel area.
Getting to the right map
The official parcel map for this area is the Mahaska County Beacon site, and no login is needed to use it. When a rural tract has no street number, follow the nearest road on the aerial and select the outline, whether the land is near Fremont or elsewhere in the county. For a home near Leighton, copy the parcel ID from that panel; every clerk in the county asks for it first.
A short flood checklist
If the land is near Keomah Village, request about past flood claims before closing; an insurance quote early avoids surprises.
Places you'll see on the map
Oskaloosa is the county seat, home to the main records offices. You'll also find Barnes City, Beacon, Eddyville, and Fremont, where town lots give way to larger tracts. Roughly 21,874 people call Mahaska County home (Census estimate, 2023) spread over some 571 square miles. The county was formed in 1843, which matters when you trace an old farm's title, especially near Indianapolis.
Recorded documents worth pulling
For anything that matters, request the recorded deed from the County Recorder; the parcel line is a drawing of it, and that holds around Cedar too. If you're looking near Eddyville, have ready the book and page listed on the parcel record and the lookup takes minutes.
Decoding the flood zone labels
For a parcel near Beacon, A and V zones mark the Special Flood Hazard Area, land with a 1-percent chance of flooding in any year. If you're looking near Cedar, a shaded X area marks moderate flood hazard, roughly the 100- to 500-year range; unshaded X is minimal risk.
Lining it up with the parcel map
FEMA's map shows zones but not ownership, so pair it with the Mahaska County Beacon site for the outline of the tract near Keomah Village.
Which office to call
Deeds, mortgages and recorded plats for land near Lacey come from the County Recorder, often with an online index. Questions about what you can build around Lakonta go to planning, building or health offices, and the answer depends on jurisdiction.
Beyond the mapped zones
Low-lying fields near Oskaloosa may not have detailed mapping, so ask neighbors about past flooding. Wet ground around Indianapolis is a separate issue from flood zones; the National Wetlands Inventory mapper shows mapped wetlands.
Insurance, lenders and building
For a structure inside an A or V zone and the loan is federally backed or regulated, flood insurance is generally required where the community participates in the National Flood Insurance Program, and that holds around Lakonta too. Remodeling a house in a zone near Oskaloosa usually means extra permit review; check with the county or town building office before you plan.
How land is described here
Iowa is laid out under the Public Land Survey System, so rural legal descriptions near Keomah Village 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 Hopewell odd-sized. Copy the legal description from the record for the parcel near Oskaloosa for any title or survey request.
On site with the map
The parcel map usually runs in a mobile browser, handy when you're parked on a road near Barnes City, so load it before you lose signal. A saved image of the lot near Lakonta and its lines helps when you meet an owner or agent.
Next door to Mahaska County
Mahaska County meets Jasper County, Keokuk County, Marion County, Monroe County, and Poweshiek County; every one of them runs a separate parcel map. A tract near the line by Beacon may show up in two county records, so open the neighboring map too. In and around Fremont, the Platbookmapper state page lists each bordering county map for Iowa.
Frequently asked
Where can I see the county flood zone map for free near Cedar?
FEMA's free map shows the zone for any spot near Barnes City; no account is needed.
When is flood insurance required around Cedar?
Short answer: for a building near Lakonta in an A or V zone with a federally backed or regulated mortgage, it's generally required; elsewhere it's optional.
Where do I find the BFE for a lot near Leighton?
The base flood elevation is the water level expected in the 1% annual chance flood; surveyors near Eddyville use it often.
Is Zone X safe from flooding in Mahaska County?
Generally, Zone X near Eddyville means moderate (shaded) or minimal (unshaded) mapped risk; FEMA notes that a large share of claims come from these areas.
Which office handles records for land near Hopewell?
If the land is near Fremont, the County Assessor handles values and the tax roll, and the County Recorder keeps deeds.
Open the official Mahaska 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.