Deputy District Attorney Marc Labreche says Duncan stole more than $25,600 in cash from the city's community center while working there as a clerk from March 27 of last year through Sept. 8, 2009.
Duncan also failed to deposit another $24,000 in checks and $20,700 in credit card payments to the city treasurer. That money is still missing. Prosecutors say Duncan's job was accepting payments for classes, trips, fees for weddings and other gatherings, and then deposit those funds.
She faces a maximum of five years, four months in state prison when she is sentenced on November 9. Duncan has paid pack $11,500 so far and could shave half off her jail time and do community service if she pays back another $10,000 by her sentencing date.
"This had a profound impact on the city of La Habra. It's a lot of money for the city," Labreche said. "There's a certain amount of trust put in her hands by citizens when they give money to the city for those programs and she violated that public trust."
City News Service contributed to this story.