Lillian is an unincorporated community in Johnson County, Texas, United States. It is located along Farm to Market Road 2738, approximately fifteen miles northeast ofCleburne.
Lillian is part of the Alvarado Independent School District. Lillian Elementary School, which serves students in grades pre-kindergarten through four, is located in the community.
The climate in this area is characterized by hot, humid summers and generally mild to cool winters. According to the Köppen Climate Classification system, Lillian has a humid subtropical climate, abbreviated "Cfa" on climate maps.