St. Martin

County:: Harrison County
County Seat:: No
Area (mi²):: 4.289
State:: Mississippi

St. Martin is a CDP located in Harrison County, Mississippi. St. Martin has a 2025 population of 7,871. St. Martin is currently growing at a rate of 0.11% annually but its population has decreased by -4.14% since the most recent census, which recorded a population of 8,211 in 2020.

The average household income in St. Martin is $66,174 with a poverty rate of 12.36%. The median age in St. Martin is 38.3 years: 36.9 years for males, and 39.7 years for females.

Demographics

The racial composition of St. Martin includes 75.2% White, 13.86% Black or African American, 6.68% Asian, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Black or African American

Asian

Two or more races

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	5,863	75.2%
Black or African American	1,081	13.86%
Asian	521	6.68%
Two or more races	272	3.49%
Other race	59	0.76%
Native American	1	0.01%
Native Hawaiian or Pacific Islander	0	0%

St. Martin Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

St. Martin's average per capita income is $37,128. Household income levels show a median of $53,488. The poverty rate stands at 12.36%.

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	$77,216	-
Families	$69,573	$78,946
Households	$53,488	$66,174
Non Families	$41,005	$47,595

$37,128

Average Income

$53,488

Median Household Income

12.36%

Poverty Rate