After more than four years of serving the Duval County School District, Superintendent Ed Pratt-Dannals will step down.

In a statement released Friday night, Pratt-Dannals says he'll leave his title as Superintendent by December 2012.

"Words cannot express my admiration for the loyalty and untiring efforts of the more than 14,000 teachers, principals, school and district staff who dedicate their lives to educating the children of Duval County every day. On a personal level, I have never worked with a more dedicated and committed team of professionals," says the outgoing superintendent.

He leaves office after 36 years of service. He says he's looking forward to spending more time with his family, completing his doctorate and exploring other opportunities, including teaching and consulting.