Aroostook County (Faransanci: Comté d'Aroostook) (ə-ROOS-tək) gundumar ce a cikin jihar Maine ta Amurka tare da iyakar Kanada da Amurka. Kamar yadda aka yi a ƙidayar jama'a na 2010, yawan jama'a ya kai 71,870. Gidansa shi ne Houlton. An san shi a cikin gida a Maine a matsayin "Gundumar", ita ce mafi girma a Amurka ta yankin ƙasar da ke gabashin Rocky Mountains (St. Louis County, Minnesota, ya fi girma ta hanyar yanki) kuma mafi girma gundumar ta yankin a Maine, da kuma a New England.
Maine tare da iyakar Kanada da Amurka