United States › Louisiana › St. Martin Parish COUNTY · 2020 ACS
St. Martin Parish Louisiana · 51,767 residents · 737 sq mi
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The short version
With 51,767 people, St. Martin Parish is a county in Louisiana. 15% of adults hold a bachelor's degree, below the 33% national rate. Owners hold 79% of the housing stock. Home values have more than doubled since 2000, reaching $123,700. 2% of people here were born outside the United States. Renters pay $686 a month at the median.
At a glance
Lower income
below the US median
US median: $66,278
Mid-age
median age 40.2
US median: 38.8
Less educated
15% hold a bachelor's degree
US average: 33%
Less affordable
home values up 39%, inflation adjusted
US median home: $265,253
Section 01
Population & growth from 33.4 in 2000
US average: 38.8
Population, 1990 – 2024
43K 46K 49K 52K 55K 1990 2000 2010 2020 2024 St. Martin Parish Age distribution, 2020
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Section 02
Income & economy $48,884
+6%inflation adjusted, since 2000
from $30,701 in 2000
US average: $66,278
from $13,619 in 2000
US average: $35,364
Households earning $100K+
from 23.5% in 2009
US average: 43.9%
from 21.5% in 2000
US average: 12.8%
Workforce by industry, 2020
Agriculture, forestry, fishing 8.3%
Professional, scientific, technical 4.1%
Public administration 3.9%
Transportation & warehousing 3.1%
Arts, entertainment, food 1.1%
Education & health services 0.9%
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$123,700
+39%inflation adjusted, since 2000
from $59,400 in 2000
US average: $265,253
$686
+29%inflation adjusted, since 2000
from $353 in 2000
US average: $1,124
from 81.7% in 2000
21.0% rent
from 2.56 people in 2009
US average: 2.61
from 2.1 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04
Race & ethnicity 2000
White, non-Hispanic 65.5%(31,813)
Hispanic / Latino 0.8%(405)
2020
White, non-Hispanic 63.6%(32,919)
Hispanic / Latino 3.2%(1,679)
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 15 more ancestry groups with data from 8.5% in 2000
US average: 32.9%
High school or higher
from 62.9% in 2000
US average: 88.5%
from 2.9% in 2000
US average: 12.7%
Section 06
Commute & transportation from 19.3 min in 2000
US average: 26.9
from 86.8% in 2009
US average: 75.1%
from 8.2% in 2009
US average: 8.4%
Section 07
Work & employment from 8.0% in 2011
US average: 5.4%
from 62.2% in 2011
US average: 63.4%
Women 20-64 in the labor force
US average: 73.3%
from 23.0% in 2009
US average: 39.3%
Section 08
People & community from 1.2% in 2009
US average: 13.5%
from 17.1% in 2013
US average: 8.8%
Computer in household
US average: 91.9%
Marital status (2024)
Men 15+
Never married 38.6%(7,758)
Women 15+
Never married 29.8%(6,286)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 17.1% in 2013
US average: 8.8%
Direct-purchase
US average: 13.7%
VA health care
US average: 2.3%
Any private
US average: 68.1%
Any public
US average: 35.2%
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, 2020
Gulf War (2001 or later) 23.9%(658)
Gulf War (1990s) 19.1%(526)
Share of the 2,758 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.
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Drill deeper
Places similar to St. Martin Parish Head to head
Compare St. Martin Parish to nearby counties ST. MARTIN PARISH VS
Iberville Parish
Income $54,000 +10%
Home value $172,800 +40%
Population 29,579 −42%
SEE FULL COMPARISON →
ST. MARTIN PARISH VS
Lafayette Parish
Income $67,451 +38%
Home value $242,900 +96%
Population 257,949 +405%
SEE FULL COMPARISON →
ST. MARTIN PARISH VS
West Baton Rouge Parish
Income $87,299 +79%
Home value $229,900 +86%
Population 28,756 −44%
SEE FULL COMPARISON →
ST. MARTIN PARISH VS
St. Mary Parish
Income $52,576 +8%
Home value $138,900 +12%
Population 46,552 −9%
SEE FULL COMPARISON →
Frequently asked
How many people live in St. Martin Parish, Louisiana? St. Martin Parish, Louisiana has about 51,767 residents according to the 2020 American Community Survey.
What is the median household income in St. Martin Parish, Louisiana? The typical household in St. Martin Parish, Louisiana earns about $48,884 a year. Half of households make more than that, and half make less.
Is St. Martin Parish, Louisiana expensive? In St. Martin Parish, Louisiana, the median home is worth about $123,700, and the typical rent is about $686 a month.
How educated are people in St. Martin Parish, Louisiana? About 15.0% of adults age 25 and over in St. Martin Parish, Louisiana hold a bachelor's degree or higher.
What is the poverty rate in St. Martin Parish, Louisiana? About 17.4% of people in St. Martin Parish, Louisiana live below the federal poverty line.
Has St. Martin Parish, Louisiana grown since 1990? Yes, St. Martin Parish, Louisiana has grown since 1990. The population has added about 7,789 residents, a change of about 18 percent over that period.
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