Blog · October 14, 2026 · California
The Yolo County Plat Book and the online parcel map
Closer to Davis, plat books show ownership by township; the parcel viewer shows it today.
Main page: Yolo County, CA GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Hunting for the latest Yolo County plat book? It's a printed atlas of landownership, usually by township, useful for farms near Davis. In this Yolo County guide: what's in a plat book, where to look for printed copies, and how the county viewer fills the gaps.
The Yolo County plat book: start here
For a tract near West Sacramento, plat books are commercial atlases, showing rural owners and tract lines, page by page across the county.
The viewer Yolo County publishes
Go first to the Yolo County ArcGIS parcel map; it covers every tax parcel around Brooks and West Sacramento. For land near Clarksburg, put in a street address, an owner's name or a parcel number, then pick the result to center the map on it. For a parcel near El Macero, copy the parcel ID from that panel; each records desk in the county uses it to find the file.
Buying or borrowing a copy
Libraries near West Sacramento sometimes keep past atlases, useful for family or title research.
Printing your own
Print parcel views near Dunnigan township by township and keep them in a binder for the truck.
Using it on a phone
The parcel map usually runs in a mobile browser, which helps when you're standing on land near Winters, so load it before you lose signal. A printout of the tract near Brooks helps when you meet an owner or agent.
Places you'll see on the map
Woodland holds the county offices, where most land records are kept. Smaller places on the map include Davis, West Sacramento, Winters, and Brooks. Roughly 220,544 people live in the county (Census Bureau estimate, 2023) spread over roughly 1,015 square miles around Dunnigan.
Next door to Yolo County
The county borders Colusa County, Lake County, Napa County, Sacramento County, and Solano County, and each of those keeps its own parcel map, at least around West Sacramento. Ground near Clarksburg that runs to the line may show up in two county records, so check the neighboring map as well. In and around Woodland, the Platbookmapper state page lists every bordering county map for California.
Who uses plat books
Buyers and seed dealers around El Macero rely on them for a big-picture view of who owns what.
Before you lean on the lines
Listed acreage is a tax-roll number; just a licensed surveyor can set the real corners for a parcel near Davis. For property near Davis, owner names and values update on a schedule, so a deed recorded last month can take weeks to appear.
Current ownership online
Between printed editions, the Yolo County ArcGIS parcel map shows current owners, including rural land around Esparto.
Sections, lots and bearings
California is laid out under the Public Land Survey System, which means a tract near Winters is described by section, township and range. Each section is nominally a mile square, about 640 acres, and a township holds 36 of them, though corrections make some sections near Clarksburg odd-sized. Write down the legal description for the tract near West Sacramento before you request a deed or survey.
Two kinds of plat
Out toward El Macero, a plat book is not a recorded plat: the recorded plat at the County Recorder is a legal document, while the atlas is a reference.
Deeds, plats and who keeps them
For acreage around Brooks, the map is an index, not the title: deeds, subdivision plats and easements for parcels in the county sit with the County Recorder. For property near Davis, have ready the document number listed on the parcel record to skip a name search.
Who handles what
Recorded documents for a parcel near Clarksburg are with the County Recorder, usually searchable by name or document number. Building or septic questions for a lot near Davis need the planning or permitting office, town or county, depending on location.
Questions about the Yolo County plat book
Who sells plat books near El Macero?
Generally, editions come and go.
How do I research old landowners around Dunnigan?
In and around Clarksburg, libraries and historical societies hold older editions; availability varies.
Should I use the Yolo County ArcGIS parcel map instead?
In most cases, the county ArcGIS parcel map is free and updated more often, at least around Winters.
Is a plat book the same as a recorded plat for land near Winters?
Closer to Dunnigan, a plat book is a privately published atlas; use a surveyor for lines.
What's a legal description for land near Davis?
The deed for land near Winters carries the legal description; a surveyor can interpret it.
How accurate are plat book acreages around Esparto?
For a home near Dunnigan, plat book acreage and lines are approximate.
Open the official Yolo County, CA 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.