What Is a Plat Map?
If a deed says who owns land, a plat map shows how the land is cut up.
What a plat shows
A plat map divides a tract into numbered lots with dimensions, easements, and streets. Each lot ties to a parcel number (APN).
In the data
The dataset carries the parcel APN and lot size for each property where available, plus county FIPS — the join keys you'd use against plat and parcel layers in GIS.
Frequently asked
What is a plat map used for?
It records how a piece of land is subdivided into lots, with boundaries and dimensions, and assigns each lot a parcel number for assessment and legal reference.
How does a plat relate to an APN?
Each lot on a plat is assigned an Assessor's Parcel Number (APN), the county's unique identifier for that parcel.
See it in the data
Browse the dataset →