Blog · October 14, 2026 · Iowa
Keokuk Flood Zone Map, Iowa: a practical guide
Flood zones are set by FEMA, and checking one near Montrose takes a few minutes.
Main page: Lee County, IA GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Before an offer near St. Paul, look at the Keokuk flood zone map: the zone on that map shapes insurance, building rules and resale. In this Keokuk guide: locating a parcel on FEMA's map, decoding A, AE and X, and pairing it with the Lee County Beacon site.
The Keokuk flood zone map: start here
Start with FEMA's Flood Map Service Center: type an address near St. Paul, then open the map view for that panel. Vacant ground around Donnellson is still easy to locate: search the nearest road and click the spot.
Opening the official parcel viewer
Begin with the Lee County Beacon site; it includes every assessed parcel around Fort Madison and St. Paul. In and around Donnellson, enter a street address, an owner's name or a parcel number, and the viewer zooms to the match. Near Houghton, write down the parcel ID from that panel; every records desk in the county uses it to find the file.
City limits and county records
Keokuk sits in Lee County, Iowa, so its parcels are on the county's map. As the county seat, Keokuk hosts the courthouse, handy when you need recorded documents. In and around Franklin, the municipality handles things like zoning, permits and utilities within town limits, and the county still keeps the parcel and deed records. Land beyond the city limits near Franklin often falls under county rules, not municipal ones.
A short flood checklist
Ask the seller for any Elevation Certificate for the house near St. Paul; an insurance quote early avoids surprises.
What the zone letters mean
Zone AE includes a base flood elevation (BFE), which plain A zones lack; that elevation drives building rules near Franklin. For acreage around Houghton, a shaded X area is moderate risk, roughly the 100- to 500-year range; unshaded X means minimal mapped risk.
Use the county map alongside FEMA
FEMA's map shows zones but not ownership, so pair it with the Lee County Beacon site for the outline of the tract near Donnellson.
Recorded documents worth pulling
The map is an index, not the title: deeds, subdivision plats and easements covering ground around Donnellson sit with the County Recorder. Inherited tracts around Donnellson may sit on a long string of deeds, so a title company can sort it out before a purchase.
Getting answers from the right desk
Recorded documents for a parcel near Franklin sit in the index kept by the County Recorder, usually searchable by name or document number. Zoning, permits and septic questions near Montrose go to planning, building or health offices, depending on whether the land is inside town limits.
Places you'll see on the map
Fort Madison holds the county offices, home to the main records offices. Smaller places on the map include Montrose, Donnellson, and Franklin, each with its own cluster of lots. Around 32,565 people live in Lee County (Census Bureau estimate, 2023) on roughly 518 square miles. Lee County was organized in 1836, and some chains of title near Montrose are long. Landmarks such as Mississippi River help you orient on the aerial around Houghton.
Taking the map into the field
Most viewers work in a phone browser, which helps when you're standing on land near Fort Madison, so load it before you lose signal. A screenshot of the parcel near Fort Madison with its ID helps when you meet an owner or agent.
What the map can't tell you
Tax maps are drawn for assessment, not measured on the ground, so the edge of a yard near Franklin may sit some distance off the line on screen. With a lot near St. Paul, owner names and values update on a schedule, so a deed recorded last month may not show yet.
Water near Donnellson
Creeks and ditches near Montrose aren't always studied in detail, so look for water marks and debris lines. Wetlands near Fort Madison can limit building even outside a flood zone; the National Wetlands Inventory mapper shows mapped wetlands.
Insurance, lenders and building
If you're looking near Houghton, get the Elevation Certificate if one exists: it compares the building to the BFE. New construction in a floodplain near St. Paul usually means extra permit review; check with the county or town building office before you plan.
Quick answers
Does the county parcel map show flood zones near Houghton?
Short answer: a flood layer may appear in the Lee County Beacon site layer list; confirm a lot near Donnellson on FEMA's map either way.
Where can I see the Keokuk flood zone map for free?
Search the address near St. Paul on FEMA's Flood Map Service Center; then confirm the parcel on the county viewer.
How often are flood maps updated near Houghton?
Zones near Montrose can shift when FEMA updates a panel; check the effective date on the panel.
Do I need flood insurance in Keokuk?
Generally, for a building near Franklin in an A or V zone with a federally backed or regulated mortgage, it's generally required; outside those zones it's your call.
What's the tax parcel number used for near Montrose?
The parcel ID identifies one tax parcel near Houghton; copy it before you call anyone.
Open the official Lee 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.