Is there a dynamic symbol (preferably a numbered circle or square) in ArcMap that is symbolized uniquely to each feature? For example, I have 150 features that I would like to symbolize with a circle and the number 1 - 150 in the center. Is this possible?
This can be achieved by going to the Labels section within Layer Properties, choose Symbol, then Edit Symbol. In the editor go to the Advanced Text tab, and choose Text Background. Click Properties and then choose Marker Text Background from the type drop down. Check the scale marker to fit text box, and choose a symbol from the Symbol... option, a circle for instance.
Yes there is. You need to label the feature class. Here is a tutorial: https://www.youtube.com/watch?v=RU6kxi-q_oA