We have reps that cover multiple counties and having a County column in the Customer Coverage table (and make it sortable) would help Reps see if they are covering them. This would especially help new reps when they acquire new territories and might not be sure of the city names in that territory.
Also relates to https://uptake.aha.io/ideas/ideas/SLSLNK-I-126 and https://uptake.aha.io/ideas/ideas/SLSLNK-I-136 "Territory Zones" would include county/postal code/zip code.