St. Martin Parish's estimated 2026 population is 50,911 with a growth rate of -0.38% in the past year according to the most recent United States census data. St. Martin Parish is the 20th largest parish in Louisiana. The 2010 population was 52,263 and has seen a growth of -2.59% since that time.
Data after 2023 is projected based on recent change
Overall: 40.1 years
Female: 40.5 years
Male: 39.6 years
There are 39,017 adults, (8,834 of whom are seniors) in St. Martin Parish.
Female: 26,147 (50.9%)
Male: 25,206 (49.1%)
The racial composition of St. Martin Parish includes 63.41% White, 28.61% Black or African American, and smaller percentages for Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 32,564 | 63.41% |
| Black or African American | 14,690 | 28.61% |
| Two or more races | 3,178 | 6.19% |
| Asian | 390 | 0.76% |
| Other race | 390 | 0.76% |
| Native American | 93 | 0.18% |
| Native Hawaiian or Pacific Islander | 48 | 0.09% |
St. Martin Parish's average per capita income is $46,046. Household income levels show a median of $55,960. The poverty rate stands at 15.26%.
Name | Median | Mean |
|---|---|---|
| Married Families | $91,809 | $111,852 |
| Families | $74,023 | $94,354 |
| Households | $55,960 | $77,235 |
| Non Families | $28,111 | $39,397 |
Average Income
Median Household Income
Poverty Rate