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How to create an attribute for a polygon based on raster value?

RobertTrotter

Hello, I am guessing this is a simple one, but what I would like to do is overlay a collection of polygons on a raster, and add an attribute to the polygons based on the pixel values within polygon. I.e. the polygon now includes an attribute describing the maximum/minimum/mean etc pixel value within the polygon.

Thank you

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Accepted answers

DarrenWiens2

You can use Zonal Statistics as Table and join it back to the original polygons. If it's an integer type, you could also Build Raster Attribute Table of the result of Zonal Statistics, and join that.

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JayantaPoddar

Try Zonal Statistics—Help | ArcGIS for Desktop

RobertTrotter

Hi Jayanta, using the zonal statistics results in a raster, I would like to produce (or retain) the original shapefile, with a new attribute which documents the largest or smallest value within the polygon. Hoping to find a simple way to do it but perhaps there is not a quick way! Thanks!

Screenshot (41)_LI.jpg

DarrenWiens2

You can use Zonal Statistics as Table and join it back to the original polygons. If it's an integer type, you could also Build Raster Attribute Table of the result of Zonal Statistics, and join that.

RobertTrotter

That seems to have worked, thank you!

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