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Zonal Statistics in ArcGIS

What is Zonal Statistics?

Calculates statistics on values of a raster within the zones of another dataset.


  • A zone defined as all areas in the input that have the same value. The areas do not have to be contiguous.
  • Both raster and feature datasets can be used for the zone input.
  • If the zone input is a raster dataset, it must have an attribute table.
  • If the zone input is a feature dataset, a vector-to-raster conversion will be internally applied to it.

A Overview of the Zonal Tools in ArcGIS

The Zonal tools allow you to perform analysis where the output is a result of computations performed on all cells that belong to each input zone.

Some zonal tools quantify certain properties of the geometry, or shape, of the zone input and do not require any other inputs.

Tabulate AreaThe tools determine the area of classes within zones.
Zonal FillTools that fill specified zones.
Zonal GeometryTools that work on zone shapes.
Zonal Geometry As TableCalculates the geometry measures for each zone in a dataset and reports the results as a table.
Zonal HistogramTools that determine the frequency distribution of values of one input raster within zones of another.
Zonal StatisticsTools that work on zone attributes.
Zonal Statistics as TableSummarizes the values of a raster within the zones of another dataset and reports the results to a table.

Zonal Statistics Tools in ArcGIS

In ArcGIS Zonal statistics tool helps you to, calculated for each zone defined by a zone dataset, based on values from another dataset.

How Zonal Statistics Tools work

There are two tools that calculate statistics by zones, Zonal Statistics and Zonal Statistics as Table.

  • The Zonal Statistics tool calculates only one statistic at a time and creates a raster output.
  • The Zonal Statistics as Table tool calculates one or multiple statistics using predefined subsets or all statistics and creates a table output.
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