it all depends on the school
regions with large numbers of asian americans who are successful will not mark you URM, those where asian americans are rare and probably faced hardship in the region because of it probably will.
also, some schools, notably west coast ones, will differentiate between the different asian groups. with different categories for chinese, japanese, indians etc. who are generally more successful, and the lao, hmong, filipinos, etc. who are not.