559 pokemon are available in USUM, counting the electrode, not counting mythicals. SM has a few exclusive island scan pokemon which bumps the count up to 616.whats the dex count in us/um? im prepping it in advance. i think i have almost everything but wanna double check and make sure im not missing anything based on number count
Breakdown is like...
400 alola dex pokemon
82 island scan pokemon (2 less than SM because Rotom is on Poni Island)
36 other legendaries
39 normal pokemon from the wormholes
Voltorb/Electrode
57 island scan pokemon from SM
e: Do you ever really sit back and realize how many pokemon are in this series. It's kind of ridiculous.