AnsweredAssumed Answered

Calculate Area of Polygon within a Polygon

Question asked by aftalton on Jul 12, 2014
Latest reply on Jan 16, 2015 by gatchrsg



I have a simple question that I can't seem to find out how to do. I have 2 shapefiles:


- All US Counties

- EcoRegions in the US


I need to calculate the area of section of County that falls within each EcoRegion polygon, take the highest percentage, and assign the name of the EcoRegion to a field in the County layer.


To simplify things, I've got a screenshot below of one county, with EcoRegions overlaid. The county has a greater percentage in the eastern EcoRegion polygon, so how can I get the name of that EcoRegion into the attribute table of each county polygon?