If you’ve run a smart list and a few minutes have passed, the results could be different now - refresh to find out.
To update data in the People tab of a smart list, click the refresh icon.
The smart list reruns and show you a more up-to-date result set.
Sometimes when you run a smart list and come back to it later, you might see the word “About” in front of the person count in the bottom right-hand corner. This indicates that the number is approximate - click the count itself to refresh it and obtain an updated, accurate count.