geographic region vs geographical region

geographic region and geographical region both are nouns.

Word	Noun	Adjective	Verb	Adverb
geographic region	Yes	No	No	No
geographical region	Yes	No	No	No

As nouns, geographic region and geographical region are synonyms defined as:

geographic region and geographical region: a demarcated area of the Earth

Other synonyms of geographic region include geographic area, geographical area.

geographic region (noun)	geographical region (noun)
a demarcated area of the Earth	a demarcated area of the Earth