geographic area vs geographical region

geographic area and geographical region both are nouns.

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

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

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

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