The Commercial Appeal reports the number announced on Sunday was a big increase from the 181 officers who had called in sick by Saturday.
Because of the number of officers out, the Shelby County Sheriff's Department is helping to patrol the city.
Armstrong said the actions come in an apparent protest to a City Council vote that will reduce health care subsidies for city employees. The funds will be redirected to the city's troubled pension fund.
Mayor AC Wharton said the city was forced to take action, citing a recent state law mandating that cities fully fund their pension plans within five years.