geographic region vs geographical area

geographic region and geographical area both are nouns.

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

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

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

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