Average the data in many small polygons to create large polygon defined by overlay

Discussion created by jakehanson on May 4, 2012
Latest reply on May 8, 2012 by dlee-esristaff
Hello all. Please move this if it is in the wrong forum section.

I have collected census data which is in LSOAs (Lower Layer Super Output Areas), but I need to create averages of several of the LSOAs so that I have average values for age, unemployment etc. for each of the primary care trusts in the UK.

Basically what i need to do is to dissolve the polygons in one layer (the LSOA layer) based on the polygons in another layer, thus creating mean values for the PCTs based upon the values in the LSOA layer.

I hope this makes sense. Can anyone tell me how to do this in Arcmap 10?

Thanks in advance