St. Mary Parish County Map
The County of St. Mary Parish is located in the State of Louisiana. Find directions to St. Mary Parish County, browse local businesses, landmarks, get current traffic estimates, road conditions, and more. According to the 2020 US Census the St. Mary Parish County population is estimated at 48,330 people. The St. Mary Parish County time zone is Central Daylight Time which is 6 hours behind Coordinated Universal Time (UTC).
Top cities include Morgan City, Franklin, Patterson, Berwick, Baldwin