Chuolan's hard-working farmers--who provide another natural factor in the area's agricultural success story--are mainly Hakkas who migrated to Taiwan in the Ching dynasty. Some found themselves in Chuolan, then inhabited mainly by mountain people.
卓蘭鎮大部份是客家人，但因三面環山，與同屬客家莊的苗栗其他鄉鎮聯絡不便，反與「自家人」疏遠了。