St. Martin Parish, Louisiana Population 2021

St. Martin Parish, Louisiana's estimated population is 53,169 with a growth rate of -0.25% in the past year according to the most recent United States census data. St. Martin Parish, Louisiana is the 21st largest county in Louisiana. The 2010 Population was 52,224 and has seen a growth of 1.81% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
202153,169-131-0.25%
202053,300-131-0.25%
201953,431-131-0.24%
201853,562-504-0.93%
201754,0662950.55%
201653,771-60-0.11%
201553,8315751.08%
201453,2563550.67%
201352,9012870.55%
201252,614-146-0.28%
201152,7605361.03%
201052,2248,24618.75%
199043,9783,7649.36%
198040,2147,76123.91%
197032,4533,39011.66%
196029,0632,71010.28%
195026,353-41-0.16%
194026,3944,62721.26%
193021,767-223-1.01%
192021,990-1,080-4.68%
191023,0704,13021.81%
190018,9404,05627.25%
189014,8842,22117.54%
188012,6633,29335.14%
18709,370-3,304-26.07%
186012,6749137.76%
185011,7613,08735.59%
18408,6741,46920.39%
18307,205-4,858-40.27%
182012,0634,69463.70%
18107,3690.00%
2021 Growth Rate
-0.25%
County Website
Founded
1811
County Seat
2010 Population
52,224
Growth Since 2010
1.81%
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St. Martin Parish, Louisiana Population Growth

Population by Race

Race Population Percentage
White35,87466.76%
Black or African American15,62929.09%
Two or More Races1,1232.09%
Asian5361.00%
American Indian and Alaska Native3140.58%
Some Other Race2560.48%
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St. Martin Parish, Louisiana Population by Race

St. Martin Parish, Louisiana Population Pyramid $2021

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St. Martin Parish, Louisiana Median Age

37.7


Total

36.3


Male

38.8


Female

St. Martin Parish, Louisiana Adults

There are 40,669 adults, (7,911 of whom are seniors) in St. Martin Parish, Louisiana.

St. Martin Parish, Louisiana Age Dependency

64

Age Dependency Ratio

24.1

Old Age Dependency Ratio

39.9

Child Dependency Ratio

St. Martin Parish, Louisiana Sex Ratio

Female

27,295

50.80%

Male

26,437

49.20%

St. Martin Parish, Louisiana Population by Age

St. Martin Parish, Louisiana Renter vs Owner Occupied by Household Type

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St. Martin Parish, Louisiana Household Types

Type Owner Renter
Married88.1%11.9%
Male87.3%12.7%
All78.8%21.2%
Non Family70%30%
Female62.5%37.5%

78.8%

Rate of Home Ownership

St. Martin Parish, Louisiana Households and Families

Type Count Average Size Owned
All19,7492.7178.8
Married9,7263.2288.1
Non Family5,7891.2470
Female3,0033.4162.5
Male1,2313.987.3

3.2

Average Family Size

2.71

Average Household Size

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St. Martin Parish, Louisiana Households by Type

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Education Attained Count Percentage
Less Than 9th Grade2,5427.08%
9th to 12th Grade3,96811.04%
High School Graduate15,44342.98%
Some College6,81718.97%
Associates Degree1,9425.41%
Bachelors Degree3,95511.01%
Graduate Degree1,2623.51%
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St. Martin Parish, Louisiana Educational Attainment by Sex (over 25)

St. Martin Parish, Louisiana Educational Attainment by Race

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Race Total High School Bachelors
White24,56820,9163,916
Black9,7387,4611,140
Hispanic84649429
2+ Races42429828
Asian28719499
Other Race149130
Native American125576

The highest rate of high school graduation is among other race people with a rate of 87.25%.

The highest rate of bachelors degrees is among asian people with a rate of 34.49%.

St. Martin Parish, Louisiana Educational Attainment by Race

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Name Average Male Female
Overall$35,275$46,326$27,300
Less Than 9th Grade$25,646$30,243$12,346
High School Graduate$31,944$42,440$25,593
Some College$33,098$53,158$26,240
Bachelors Degree$48,274$63,500$42,804
Graduate Degree$53,500$53,750$53,313

$35,275

Average Earnings

$46,326

Average Male

$27,300

Average Female

St. Martin Parish, Louisiana Earnings by Educational Attainment

St. Martin Parish, Louisiana Language by Age

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St. Martin Parish, Louisiana Language

83.62% of St. Martin Parish, Louisiana residents speak only English, while 16.38% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 13.98% of the population.

St. Martin Parish, Louisiana Language

St. Martin Parish, Louisiana Poverty by Race

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Name Total In Poverty Poverty Rate
Black15,4074,61529.95%
White34,1434,18512.26%
Multiple1,11150245.18%
Hispanic1,52342728.04%
Asian53624245.15%
Native2946722.79%
Other24120.83%

18.85%

Overall Poverty Rate

16.73%

Male Poverty Rate

20.89%

Female Poverty Rate

Poverty in St. Martin Parish, Louisiana

The race most likely to be in poverty in St. Martin Parish, Louisiana is Multiple, with 45.18% below the poverty level.

The race least likely to be in poverty in St. Martin Parish, Louisiana is Other, with 0.83% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.94%. Among those working part-time, it was 19.90%, and for those that did not work, the poverty rate was 25.17%.

St. Martin Parish, Louisiana Poverty

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Name Poverty
Less Than 9th Grade25.18%
High School15.89%
Some College14.45%
Bachelors or Greater5.52%

St. Martin Parish, Louisiana Poverty Rate by Education

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Rate Poverty
Female Unemployed58.99%
Male Unemployed26.55%
Female Employed12.46%
Male Employed4.35%

St. Martin Parish, Louisiana Poverty Rate by Employment Status and Sex

St. Martin Parish, Louisiana Income by Household Type

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Name Median Mean
Households$48,656$65,800
Families$58,000$74,706
Married Families$76,157$89,253
Non Families$27,528$40,940
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Income by Household Type

St. Martin Parish, Louisiana Marital Status

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Marriage Rates

48.5%

Overall Marriage Rate

50.4%

Male Marriage Rate

46.7%

Female Marriage Rate

St. Martin Parish, Louisiana Married by Age and Sex

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St. Martin Parish, Louisiana Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 45-54.

St. Martin Parish, Louisiana Marital Status by Race

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St. Martin Parish, Louisiana Marital Status

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2,206

Number of Veterans

1,978

Male Veterans

228

Female Veterans

War Veterans
Vietnam864
Second Gulf War593
First Gulf War470
Korea167
World War II60

St. Martin Parish, Louisiana Veterans by War

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Age Group Veterans
65 to 74618
35 to 54519
75+457
18 to 34336
55 to 64276

St. Martin Parish, Louisiana Veterans by Age

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Name Veterans % of Total
White1,5985.71%
Black5264.71%
Asian4611.73%
Hispanic413.73%
2+ Races294.36%
Other Race74.40%

St. Martin Parish, Louisiana Veterans by Race

St. Martin Parish, Louisiana Veterans by Education

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17.01%

Veteran Poverty Rate

32.99%

Veteran Disability Rate

St. Martin Parish, Louisiana Veterans by Education

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58.4%

Labor Force Participation

53.8%

Employment Rate

7.8%

Unemployment Rate

St. Martin Parish, Louisiana Employment by Age

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St. Martin Parish, Louisiana Employment by Race

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St. Martin Parish, Louisiana Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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89.91%

Born in St. Martin Parish, Louisiana

98.24%

Native Born

1.76%

Foreign Born

1.13%

Non Citizen

0.62%

Naturalized

Place of Birth

98.24% of St. Martin Parish, Louisiana residents were born in the United States, with 89.91% having been born in Louisiana. 1.13% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

St. Martin Parish, Louisiana Place of Birth

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources