St Mary Parish Flag

St Mary Parish

State:
Louisiana
County Seat:

St. Mary Parish's estimated 2025 population is 45,527 with a growth rate of -1.65% in the past year according to the most recent United States census data. St. Mary Parish is the 23rd largest county in Louisiana. The 2010 population was 54,553 and has seen a growth of -16.55% since that time.

45,527
Total Population
81
Population Density (miĀ²)
23
Population Rank (State)
-764 -1.65%
Annual Population Growth

St. Mary Parish Population

St. Mary Parish Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of St. Mary Parish includes 56.11% White, 29.07% Black or African American, 3.8% other race, and smaller percentages for Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Black or African American

Two or more races

Other race

Native American

Asian

Native Hawaiian or Pacific Islander

Race
Population
Percentage (of total)
White27,18956.11%
Black or African American14,08429.07%
Two or more races3,9098.07%
Other race1,8413.8%
Native American7881.63%
Asian6331.31%
Native Hawaiian or Pacific Islander110.02%

St. Mary Parish Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

St. Mary Parish's average per capita income is $41,295. Household income levels show a median of $51,768. The poverty rate stands at 22.07%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$93,445-
Families$65,357$83,462
Households$51,768$70,302
Non Families$28,267$41,094

$41,295

Average Income

$51,768

Median Household Income

22.07%

Poverty Rate