United States › Louisiana › St. Mary Parish COUNTY · 2010 ACS
St. Mary Parish Louisiana · 54,650 residents · 559 sq mi
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The short version
With 54,650 people, St. Mary Parish is a county in Louisiana. 10% of adults hold a bachelor's degree, below the 28% national rate. Median home value sits at $85,500. 4% of locals were born outside the United States. The poverty rate is 21.0%, above the 13.8% national rate. Renters pay $598 a month at the median.
At a glance
Lower income
below the US median
US median: $52,703
Mid-age
median age 37.5
US median: 37.2
Less educated
10% hold a bachelor's degree
US average: 28%
Stable housing
home values roughly flat, inflation adjusted
US median home: $225,659
Section 01
Population & growth from 34.3 in 2000
US average: 37.2
Population, 1990 – 2024
47K 50K 53K 56K 59K 1990 2000 2010 2020 2024 St. Mary Parish Age distribution, 2010
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Section 02
Income & economy $40,431
+14%inflation adjusted, since 2000
from $28,072 in 2000
US average: $52,703
from $13,399 in 2000
US average: $27,286
Households earning $100K+
from 22.5% in 2009
US average: 33.3%
from 23.6% in 2000
US average: 13.8%
Workforce by industry, 2010
Agriculture, forestry, fishing 9.7%
Professional, scientific, technical 5.2%
Transportation & warehousing 2.6%
Education & health services 1.1%
Arts, entertainment, food 1.1%
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$85,500
+7%inflation adjusted, since 2000
from $63,100 in 2000
US average: $225,659
$598
+19%inflation adjusted, since 2000
from $397 in 2000
US average: $853
from 73.9% in 2000
29.8% rent
from 12.7% in 2009
US average: 12.1%
from 2.55 people in 2009
US average: 2.60
from 18.1% in 2009
US average: 30.9%
from 36.2% in 2009
US average: 46.8%
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 61.8%(33,051)
Hispanic / Latino 2.2%(1,152)
2010
White, non-Hispanic 57.2%(31,267)
Hispanic / Latino 5.3%(2,920)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Hispanic origin
+ 2 more hispanic origin groups with data Ancestry
+ 23 more ancestry groups with data from 9.4% in 2000
US average: 27.9%
High school or higher
from 65.9% in 2000
US average: 84.9%
from 2.5% in 2000
US average: 10.2%
Section 06
Commute & transportation from 13.6 min in 2000
US average: 25.2
from 79.1% in 2009
US average: 76.2%
from 13.4% in 2009
US average: 10.4%
from 0.5% in 2009
US average: 4.7%
from 1.8% in 2009
US average: 4.1%
from 2.8% in 2009
US average: 2.8%
from 0.2% in 2009
US average: 0.5%
from 11.0% in 2009
US average: 8.7%
Section 07
Work & employment from 12.7% in 2009
US average: 12.9%
from 23.1% in 2009
US average: 35.2%
Section 08
People & community from 2.7% in 2009
US average: 12.8%
from 9.8% in 2009
US average: 9.9%
Marital status (2024)
Men 15+
Never married 37.4%(6,897)
Women 15+
Never married 33.5%(6,606)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage Showing 2024 (the nearest year with coverage data).
from 20.5% in 2013
US average: 8.4%
from 35.5% in 2020
US average: 54.8%
Direct-purchase
from 13.0% in 2020
US average: 13.8%
from 21.0% in 2020
US average: 18.4%
from 41.9% in 2020
US average: 20.9%
VA health care
from 2.2% in 2020
US average: 2.2%
Any private
from 48.4% in 2020
US average: 67.1%
Any public
from 57.7% in 2020
US average: 36.7%
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) 20.9%(387)
Gulf War (1990s) 21.9%(406)
Share of the 1,852 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. Mary Parish Head to head
Compare St. Mary Parish to nearby counties ST. MARY PARISH VS
Iberia Parish
Income $56,961 +41%
Home value $164,500 +92%
Population 66,846 +44%
SEE FULL COMPARISON →
ST. MARY PARISH VS
Assumption Parish
Income $51,423 +27%
Home value $150,300 +76%
Population 19,720 −58%
SEE FULL COMPARISON →
ST. MARY PARISH VS
St. Martin Parish
Income $55,960 +38%
Home value $164,200 +92%
Population 51,106 +10%
SEE FULL COMPARISON →
ST. MARY PARISH VS
Terrebonne Parish
Income $64,836 +60%
Home value $187,200 +119%
Population 104,163 +124%
SEE FULL COMPARISON →
Frequently asked
How many people live in St. Mary Parish, Louisiana? St. Mary Parish, Louisiana has about 54,650 residents according to the 2010 American Community Survey.
What is the median household income in St. Mary Parish, Louisiana? The typical household in St. Mary Parish, Louisiana earns about $40,431 a year. Half of households make more than that, and half make less.
Is St. Mary Parish, Louisiana expensive? In St. Mary Parish, Louisiana, the median home is worth about $85,500, and the typical rent is about $598 a month.
How educated are people in St. Mary Parish, Louisiana? About 10.4% of adults age 25 and over in St. Mary Parish, Louisiana hold a bachelor's degree or higher.
What is the poverty rate in St. Mary Parish, Louisiana? About 21.0% of people in St. Mary Parish, Louisiana live below the federal poverty line.
Has St. Mary Parish, Louisiana grown since 1990? Yes, St. Mary Parish, Louisiana has shrunk since 1990. The population has lost about 3,436 residents, a change of about -6 percent over that period.
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