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All St. Mary Parish population data above are from the US Census Bureau.
The population data for St. Mary Parish are from the Census' American Community Survey 2018 5-year estimates and the Census' 2019 Population Estimates. The demographic data for Jefferson Davis Parish, St. Bernard Parish, St. Helena Parish, and Vernon Parish are the most current, comparable demographics available from the US Census Bureau, are from the American Community Survey 2018 5-year estimates, and were downloaded on 19 December 2019. Check out our FAQ section for more details.
With 49,348 people, St. Mary Parish is the 22nd most populated county in the state of Louisiana out of 64 counties. But watch out, St. Mary Parish, because St. Bernard Parish with 47,244 people and Vernon Parish with 47,429 people are right behind you.
The largest St. Mary Parish racial/ethnic groups are White (56.1%) followed by Black (31.0%) and Hispanic (6.9%).
In 2018, the median household income of St. Mary Parish residents was $40,485. St. Mary Parish households made slightly more than Jefferson Davis Parish households ($39,653) and St. Helena Parish households ($39,895) . However, 19.0% of St. Mary Parish residents live in poverty.
The median age for St. Mary Parish residents is 39.1 years young.
86% of people CANNOT find the data they're looking for on the US Census Bureau website. Source: Nielsen Norman Group
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