St. Mary Parish, LA — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
48,455
Male
23,727
49.0%
Female
24,728
51.0%
Median Age
39.7 yrs
Avg Household Size
2.6
Foreign Born
4.9%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher8.9%
High School or Higher40.2%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
3.8%
Disability
0.0%
Non-English Home
13.2%
Married
36.9%
St. Mary Parish, LA has a population of 48,455 according to 2023 Census Bureau estimates. The median age is 39.7 years. The largest racial or ethnic group is White at 56.1% of the population. 8.9% of residents hold a bachelor's degree or higher. 4.9% of residents are foreign-born.