Blog · October 14, 2026 · Iowa
Reading the Coralville Plat Map for a lot
Lots in Coralville trace back to recorded plats filed with the county.
Main page: Johnson County, IA GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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When a deed near Tiffin says lot and block, look up the Coralville plat map it refers to. This Coralville guide covers: where plats are filed, plat versus tax map, and what to look for on the sheet.
Getting started with the Coralville plat map
For a lot in Coralville, the deed usually cites the plat; use it to request a copy.
The viewer Johnson County publishes
Your first stop is the Johnson County Beacon site; it includes each assessed parcel around Oxford and Hills. Without an address in hand, pan along US Route 218 and select the outline. For property near Tiffin, write down the parcel ID while you have it open; every office in the county will want it.
Limits of the parcel data
Tax maps are drawn for assessment, not measured on the ground, so a fence near Solon can sit several feet off the line on screen. If the land is near Iowa City, owner names and values update on a schedule, so a deed recorded last month might lag behind.
Amended plats
Lots near Solon can be combined or reconfigured by a replat, search the index for replats of the same subdivision; vacated streets or alleys also get recorded.
Coralville and the county around it
Coralville lies within Johnson County, Iowa, so its parcels are on the county's map. Closer to Oxford, City or town hall handles matters such as zoning, permits and utilities within town limits, and the county still keeps the parcel and deed records. Lots just outside the town limits near Solon usually falls under county rules rather than the town's.
The paper trail behind a parcel
When the details count, pull the recorded deed from the County Recorder; the parcel map near Solon only summarizes it. For land near Solon, have ready the book and page listed on the parcel record so staff can find the deed fast.
Metes and bounds instead
Acreage around North Liberty outside a subdivision is often described by metes and bounds or survey description; look for a recorded survey for land near Tiffin.
Sections, lots and bearings
Iowa is laid out under the Public Land Survey System, so deeds around Iowa City reference sections and townships. A standard section is about one square mile, roughly 640 acres, with 36 sections to a township, though corrections make some sections near Solon odd-sized. Keep the legal description for land near North Liberty for any title or survey request.
Taking the map into the field
The parcel map usually runs in a mobile browser, handy when you're parked on a road near Tiffin, but coverage can be spotty out of town. A screenshot of the parcel near Tiffin with its ID keeps working without signal.
Which office to call
Questions about value or the owner field for land near Tiffin belong with the County Assessor, the office behind the parcel record. Questions about what you can build around Hills need the planning or permitting office, town or county, depending on location.
Plat map vs. parcel map
The Johnson County Beacon site draws parcels for taxes, whereas the plat carries surveyed dimensions.
Johnson County in a few facts
Iowa City is the county seat, home to the main records offices. You'll also find Tiffin, North Liberty, and Solon, each with its own cluster of lots. Roughly 157,528 people live in Johnson County (Census estimate, 2023) on roughly 613 square miles. Johnson County was formed in 1837, and some chains of title near Solon are long.
Lots, blocks and easements
Utility or drainage strips on a lot in Coralville limit where you can build or fence; read the notes on the sheet.
Ordering the Coralville plat map
Out toward Tiffin, some counties put plat images online, while others require a visit or a request; copy fees are usually small.
When a parcel crosses a boundary
Johnson County meets Benton County, Cedar County, Iowa County, Linn County, and Louisa County, and each of those keeps its own parcel map. A tract near the line by Tiffin may be split in two county records, so open the adjacent map before you assume the acreage. If you're looking near Iowa City, our state page links each bordering county map for Iowa.
Questions about the Coralville plat map
What do the dashed lines on a plat mean near Iowa City?
For a tract near Hills, recorded plat easements usually show on the sheet; read the plat notes.
What is a replat around Tiffin?
Combining or splitting lots near Hills usually needs a recorded plat change, often with a surveyor's drawing.
Who has recorded plats for land near Hills?
In most cases, recorded plats near Oxford are filed with the County Recorder; use the plat reference from the deed or parcel record.
What is a lot and block description in Coralville?
With a lot near Iowa City, lot and block refer to a numbered lot within a block on a recorded subdivision plat.
What is a parcel ID near Solon?
The parcel ID identifies one tax parcel near Hills; copy it before you call anyone.
Open the official Johnson 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.