proportionate sum assistance

[ralptorr]

As you can see from the attached sample I have a point on the map, a radius and block group demos. I would like to be able to calculate the proportionate sum of the population of the blockgroups that the radius covers not the total blockgroup.  Is that possible?

[Chantelb]

Hi @ralptorr 

You can use the Spatial Process tool to create an intersection object between each block group and the trade area of the store. Then you can calculate the area of each intersection object and area of each block group to find the percentage covered, then multiply by the block group population to get the proportional population. See workflow attached.

Let me know if this helps.

Chantel