St. Martin Parish is home to 51,353 people in Louisiana. 17% of adults hold a bachelor's degree, below the 36% national rate. 78% of homes are owner-occupied. Home values have more than doubled since 2000, reaching $164,200. The foreign-born share is 2%. Renters pay $870 a month at the median.
At a glance
Lower income
median household income $55,960, below the US median
US median: $82,259
Mid-age
median age 40.1
US median: 38.9
Less educated
17% hold a bachelor's degree
US average: 36%
Less affordable
home values up 52%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about St. Martin Parish
What changed most since 1990
Poverty rate27.3% → 15.3%(−12.1 pts)US over the same years: −0.8 pts
Median age29.4 → 40.1(+10.7 years)US over the same years: +6.0 years
Adults with a bachelor's degree6.7% → 16.8%(+10.1 pts)US over the same years: +15.3 pts
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)14.9%(315)
US avg: 26.4%
Gulf War (1990s)28.2%(595)
US avg: 24.3%
Vietnam era42.8%(904)
US avg: 33.1%
Korean War2.5%(53)
US avg: 4.5%
World War II0.9%(18)
US avg: 1%
Share of the 2,112 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
St. Martin Parish, decade by decade
St. Martin Parish population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
43,978
$45,880
$106,323
6.7%
58.9
2000
48,583
$55,927
$108,206
8.5%
58.7
2010
52,160
$59,416
$121,272
11.6%
60.6
2020
51,767
$59,249
$149,929
15.0%
63.7
2024
51,353
$55,960
$164,200
16.8%
64.7
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
