All Mariposa County Offices Closed Today, Tuesday, February 5th Details Last Updated: Tuesday, 05 February 2019 09:52 Published: Tuesday, 05 February 2019 09:51 View Comments February 5, 2019 - The Mariposa County Sheriff's Office reports all Mariposa County Offices are closed today Tuesday, Feb 5th. All scheduled appointments have been cancelled and will be rescheduled when offices are reopened.Source: Mariposa County Sheriff's Office View the discussion thread. back to top