I noticed that the last few days. I do like to follow up that number and miss it. However there is an easy cheat.
Bellow the name of your city you can see also the ones nearby, with the discussed number showing up. I just click on any of those cities, so mine is going to move to the sublist and voila, the number is there.
I am not sure I am making sense in my caveman English.
If I am in DC, the screen shows three nearby locations: Alexandria, Annapolis, and Baltimore. I cannot see how many escorts are listed in DC, but the number shows in between parenthesis for each of the nearby locations. So I click, for instance, on Baltimore. On the Baltimore screen I cannot see how many escorts are listed, but DC shows in the list of nearby locations with the number in between parenthesis.
I hope it is clear.