Yep, due to non-uniform density it's much more complicated. https://en.wikipedia.org/wiki/Gravity_of_Earth#Depth https://en.wikipedia.org/wiki/Gravity_of_Earth#

Yep, due to non-uniform density it's much more complicated. https://en.wikipedia.org/wiki/Gravity_of_Earth#Depth https://en.wikipedia.org/wiki/Gravity_of_Earth#Depth includes a graphic that shows how it varies.