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Find Average Market Value of all parcels within a subdivision for all subdivisions

July 10 2009 | 0 comments
Categories: ArcGIS Methods, Map Data

This may not be the place to ask this question. I have a feature class for subdivisions and a feature class for parcels with a "Total Market Value" field for each parcel. I need to find a way to find the average "Total Market Value" of each subdivision. I know how to calculate this value and populate a field within the subdivision feature class by selecting the parcels within a subdivision, however I have about 150 subdivisions and I need to find a way to automatically calculate the value for each subdivision without having to do it one subdivision at a time. Thanks

Mapping Center Answer:

Each parcel needs to know the identity of the subdivision it falls within.  Use the Identity tool to do that.  Then you can use the Summary Statistics tool to get a table with the averages.  You can then join that table to your subdivisions and symbolize the subdivisions by the average market value.

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