Lydia Hernandez currently serves as a State Representative for District 24. She was elected to this position in 2023 and is serving her first term. She also serves as a Cartwright School District Board Member. She was elected to that position in 2004 and is serving her fifth term. She previously served as a State House Representative for District 29. She was elected to that position in 2013 and served for three terms.

Lydia currently works as a legal assistant at Federal Immigration Counselors. She previously served as Director of Family Services with Arizona Habitat for Humanity and as an Equal Opportunity Specialist and Commissioner of Indian Affairs-Executive Director for the Arizona State Government.

Lydia holds a degree in political science and government from Baylor University. She is Catholic.