with ctrl f find, yes
open storage, click into the search by name box, press ctrl f
find "Lv." and it tells you how many times that searched query appears
I've got 1436 pokémon. Your results may vary.
You can do the same trick with the in-game pokédex open searching for how many times "caught" appears to get a rough approximation of your leaderboard score (if you're not already on it).