AUSTIN (KXAN) — Mayor Daniel Guerrero of San Marcos announced Tuesday he will not seek a fourth term.

The mayor’s term is up at the end of 2016. He’s already served six years as San Marcos mayor, which became the fastest growing city in America for its size.

Mayor Guerrero is leaving to work with the Asian Pacific Economic Cooperative, working on programs for students at San Marcos High School.

“We have worked together to create jobs, manage growth in the fastest growing city in the U.S., respond to disastrous floods, protect our sacred spring-fed river, expand our parks and green spaces, and improve our downtown, neighborhoods, roads and bikeways,” the mayor said.

“I want to express my gratitude to my City Council colleagues, and City Manager Jared Miller and the amazing staff team at the City of San Marcos who show such dedication to our community — across the board,” he continued.