It could be fallout from California's passage of a law in September that requires IMDb to omit or remove age and birth date info from an actors profile upon request. It's being appealed, so we'll see what happens.

Yes, she also had a role in this week's Chicago P.D., where she played a 16-year old. Interestingly, her resume here lists her as suitable for playing ages 15-25, which is a pretty wide range.

I'm not even sure this only applies to "younger people", but fair enuff, thanks for the info.
I just wondered because of her role in Flash (as I'm sure was easy to guess), in where they keep treating her character as a "kid" when she doesn't really look all that much younger than most of the others, you know.

Never finish what you can't start!

Yes, birth dates do seem to be getting rarer here for younger people.
Her birth date is May 18, 1996 according to several web sites, so that makes her 20.