Blog · October 8, 2026 · Iowa
Harrison County, Iowa: Plat Book Guide
A practical guide to the Harrison County plat book: the official link, towns and land across the county, property lines, and where deeds are recorded.
Main page: Harrison County, IA GIS & Parcel Viewer (official map link, Harrison County facts and neighboring maps).
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Buying land in Iowa without looking at the parcel map is like buying a car without opening the hood. For property around Missouri Valley, the Harrison County plat book is free and public.
You'll find the viewer link, notes on Missouri Valley and the land around it, and short answers to common questions about property lines and land records.
What the map covers, from Logan to the back roads
Besides Logan, which serves as the county seat, the map covers Dunlap, Little Sioux, Magnolia, and Missouri Valley. Out in the countryside, Beebeetown, California Junction, and Hard Scratch appear as small knots of lots along the road network. The county dates to 1851, named for William Henry Harrison, and older deeds may still refer to landmarks from that era. For scale: roughly 697 square miles of land and an estimated 14,670 residents as of 2023, per the Census Bureau. That is a rural density, so once you leave Missouri Valley expect a patchwork of farm tracts, woodlots and small acreage splits. Public ground such as DeSoto National Wildlife Refuge appears as large unbroken blocks, and the private parcels around it draw hunters and recreation buyers.
Finding a Harrison County plat book
Farmers, hunters and rural mail carriers around Magnolia have long used printed plat books, which show each township with owner names written on the tracts. Treat a printed edition as a handy field reference near Magnolia and the online map as the current record. If a printed book and the online map disagree about a tract near Magnolia, the recorded deed decides.
Finding a parcel in Harrison County
The Harrison County Beacon site is the county's own public parcel viewer; it runs on Schneider Geospatial's Beacon platform. For a tract near Little Sioux, the report page lists sales history and the legal description, and a map link zooms straight to it. The same link lives on our Harrison County county page, along with links for the surrounding area.
How accurate are Harrison County, IA property lines?
On rural tracts near Orson, the parcel lines can drift from the fences on the ground, sometimes by more than a few feet. Square-ish tracts around Missouri Valley are no accident: Iowa land was surveyed into sections, and deeds still describe land that way. If a neighbor's fence near Little Sioux and the map disagree, neither one is proof. A survey is.
Behind the map: land records in Harrison County
The map near Magnolia is only as good as the deeds behind it, and those are kept in the county's recording office. Recording offices go by different titles from state to state, including register of deeds, recorder, county clerk and clerk of court; the official Harrison County website names the one that handles deeds. For subdivision lots in Dunlap, the plat book and page on the record leads straight to the recorded plat.
Who needs this map
Different people come to the Harrison County parcel map for different reasons.
- For hunters in Harrison County, the map turns a wall of trees into named ownerships, which is the first step toward getting permission.
- A buyer who wants ten or twenty acres near Magnolia can rule out most of the wrong tracts from a desk before driving out.
- A buyer comparing houses in Magnolia and Little Sioux can line up the lot sizes side by side before booking showings.
Hunting land and landowner permission in Harrison County
Hunters working the country toward the Pottawattamie County line can use the parcel map to put a name on every woodlot and field. Around DeSoto National Wildlife Refuge, private tracts can press right up against the public boundary, so check the lines before you walk in. Before hunting around Modale, read the Iowa Department of Natural Resources's current season rules. In the field near Dunlap, respect posted signs and painted boundaries even where the map line looks different.
Work and land use in Harrison County
By the Census Bureau's 2022 count, 353 business establishments operated in Harrison County. Construction had the most, followed by retail trade and wholesale trade. Relative to the U.S. as a whole, Harrison County is heavy on wholesale of nondurable goods (including farm products), truck transportation, and food manufacturing. Where a tract near Little Sioux has highway or rail access, expect commercial and farm buyers to take an interest. For a land buyer in Harrison County, that mix hints at who your neighbors and competing bidders are likely to be.
Data limits to keep in mind
If a tract near Modale changed hands recently, the recorded deed is more current than the map. The acreage on a Modale record is what the tax roll uses, and a survey can come out different.
Harrison County parcel map FAQ
Where are land records kept in Harrison County?
Recorded deeds for land near Missouri Valley are kept by the county's recording office. The Harrison County government site lists which office that is.
How do I look up a property owner in Harrison County, IA?
Look up the address in Little Sioux, or click the tract. Owner names on the Harrison County map come from recorded deeds.
How do I find property lines in Harrison County?
Map first, then the recorded plat or deed, then a survey: that order works for any boundary question in Harrison County.
Is there a printed plat book for Harrison County, Iowa?
Whether a current printed edition exists for Harrison County varies; the free online map covering Missouri Valley and the rest of the county is the dependable option.
Open the official Harrison County, IA parcel map Harrison County 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.