Blog · October 14, 2026 · California
Using the Colusa Plat Map
Lots in the town trace back to recorded plats filed with the county, at least around Arbuckle.
Main page: Colusa County, CA GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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When a listing near Williams mentions a lot number, the Colusa plat map is where those numbers come from. Covered here for this town: where to request a copy, plat versus tax map, and what to look for on the sheet, especially near Arbuckle.
Who keeps the Colusa plat map
In and around Grimes, recorded plats sit with the County Recorder, usually in a plat book or cabinet.
Where the parcel data lives
Begin with the Colusa County ArcGIS parcel map; it includes each tax parcel around Arbuckle and Grimes. For a parcel near Grimes, type a street address, an owner's name or a parcel number, and the matching parcel lights up. For a parcel near Williams, the record panel normally shows the owner of record, acreage on the tax roll, the parcel number and in many cases the last transfer.
Recorded documents worth pulling
Before you sign anything, pull the recorded deed through the County Recorder; the parcel map near Williams only summarizes it. For a tract near Williams, have ready the book and page from the tax record to skip a name search.
Before you lean on the lines
The acreage figure is an estimate; only a licensed surveyor establishes the real boundary for a parcel near Grimes. Closer to Arbuckle, records update in batches, so a deed recorded last month can take weeks to appear.
Colusa County in a few facts
Colusa holds the county offices, where most land records are kept. You'll also find Williams, Arbuckle, and Grimes. Around 22,037 people live in Colusa County (Census Bureau estimate, 2023) on about 1,151 square miles. Features like Sacramento River and Butte Sink National Wildlife Refuge help you orient on the aerial around Grimes.
Where Colusa fits in
Colusa lies within Colusa County, California, and the county assessor maps its lots. As the county seat, Colusa hosts the courthouse, handy when you need recorded documents. If the land is near Arbuckle, city or town hall handles things like zoning, permits and utilities for lots inside the boundary, and the county still keeps the parcel and deed records. Lots just outside the town limits near Arbuckle usually falls under county rules rather than the town's.
Recorded plat or GIS layer
The tax map on the Colusa County ArcGIS parcel map is a summary, while the recorded plat is the legal document.
Reading the plat sheet
Utility or drainage strips on a lot in Colusa limit where you can build or fence; read the notes on the sheet.
Metes and bounds instead
Acreage around Grimes outside a subdivision may have no plat at all; the deed and any recorded survey describe it instead.
Legal descriptions in California
California follows the Public Land Survey System, which means a tract near Arbuckle is described by section, township and range. A standard section is about one square mile, roughly 640 acres, and a township holds 36 of them, though sections near Arbuckle can be irregular. Keep the legal description for land near Williams before you request a deed or survey.
Ordering the Colusa plat map
For a tract near Arbuckle, some counties put plat images online, while others require a visit or a request; small fees are common.
Field tips
Most viewers work in a phone browser, handy when you're parked on a road near Arbuckle, though signal can drop in rural spots. A screenshot of the parcel near Arbuckle with its ID keeps working without signal.
When a plat changes
Lots near Arbuckle can be combined or reconfigured by a replat, so check for later filings; vacated streets or alleys also get recorded.
Neighboring parcel maps
Colusa County touches Butte County, Glenn County, Lake County, Sutter County, and Yolo County; every one of them runs a separate parcel map. Acreage along the edge near Williams may show up in two county records, so open the neighboring map before you assume the acreage. If you're looking near Williams, our state page links every bordering county map across California.
Offices that can help
Recorded documents for a parcel near Williams come from the County Recorder, usually searchable by name or document number. Building or septic questions for a lot near Arbuckle are for the local planning and health departments, and the answer depends on jurisdiction.
Quick answers
How do I get a copy of a plat in Colusa?
The County Recorder keeps recorded plats.
What do the dashed lines on a plat mean in Colusa?
In most cases, building on an easement near Williams is generally restricted, so check before you build.
Are old plats online for land near Arbuckle?
If the land is near Arbuckle, it varies; some offices have scanned older plats and some haven't; call before you visit.
What is a replat around Arbuckle?
Lot splits in Colusa go through the planning office.
How is land described in California deeds for land near Williams?
For a tract near Williams, deeds use lot and block, metes and bounds or survey descriptions, and the parcel record often summarizes it.
Open the official Colusa 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.