St. Tammany Parish, Louisiana Population 2023

273,819

St. Tammany Parish, Louisiana's estimated 2023 population is 273,819 with a growth rate of 1.14% in the past year according to the most recent United States census data. St. Tammany Parish, Louisiana is the 4th largest county in Louisiana. The 2010 population was 233,740 and has seen a growth of 17.15% since that time.

Note: data after 2021 is projected based on recent change
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St. Tammany Parish, Louisiana Population 2023

Population by Race

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White

Black or African American

Two or more races

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

St. Tammany Parish, Louisiana Population by Race

St. Tammany Parish, Louisiana Population Pyramid 2023

St. Tammany Parish, Louisiana Median Age

40.4

Total

39.2

Male

41.4

Female

St. Tammany Parish, Louisiana Adults

There are 196,605 adults, (43,912 of whom are seniors) in St. Tammany Parish, Louisiana.

St. Tammany Parish, Louisiana Age Dependency

69.3

Age Dependency Ratio

28.8

Old Age Dependency Ratio

40.5

Child Dependency Ratio

St. Tammany Parish, Louisiana Sex Ratio

Female132,94351.44%
Male125,50448.56%

St. Tammany Parish, Louisiana Population by Age

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

3.22

Average Family Size

2.69

Average Household Size

78.5%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

St. Tammany Parish, Louisiana Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

St. Tammany Parish, Louisiana Educational Attainment by Sex (over 25)

St. Tammany Parish, Louisiana Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among white people with a rate of 79.37%.

The highest rate of bachelors degrees is among islander people with a rate of 72.34%.

St. Tammany Parish, Louisiana Educational Attainment by Race

All

Male

Female

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$44,965

Average Earnings

$54,958

Average Male

$35,793

Average Female

St. Tammany Parish, Louisiana Earnings by Educational Attainment

St. Tammany Parish, Louisiana Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

St. Tammany Parish, Louisiana Language

93.14% of St. Tammany Parish, Louisiana residents speak only English, while 6.86% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 4.24% of the population.

St. Tammany Parish, Louisiana Language

St. Tammany Parish, Louisiana Poverty by Race

rate

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13.49%

Overall Poverty Rate

9.25%

Male Poverty Rate

12.59%

Female Poverty Rate

Poverty in St. Tammany Parish, Louisiana

The race most likely to be in poverty in St. Tammany Parish, Louisiana is Other, with 43.85% below the poverty level.

The race least likely to be in poverty in St. Tammany Parish, Louisiana is White, with 10.85% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.99%. Among those working part-time, it was 13.2%, and for those that did not work, the poverty rate was 18.59%.

St. Tammany Parish, Louisiana Poverty

rate

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St. Tammany Parish, Louisiana Poverty Rate by Education

rate

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

St. Tammany Parish, Louisiana Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

St. Tammany Parish, Louisiana Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

52.3%

Overall Marriage Rate

55.4%

Male Marriage Rate

49.4%

Female Marriage Rate

St. Tammany Parish, Louisiana Married by Age and Sex

male

female

St. Tammany Parish, Louisiana Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

St. Tammany Parish, Louisiana Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

St. Tammany Parish, Louisiana Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

15,768

Number of Veterans

14,311

Male Veterans

1,457

Female Veterans

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St. Tammany Parish, Louisiana Veterans by War

count

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St. Tammany Parish, Louisiana Veterans by Age

count

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St. Tammany Parish, Louisiana Veterans by Race

St. Tammany Parish, Louisiana Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

6.54%

Veteran Poverty Rate

29.78%

Veteran Disability Rate

St. Tammany Parish, Louisiana Veterans by Education

LaborForceParticipation

62%

Labor Force Participation

58.1%

Employment Rate

5.3%

Unemployment Rate

St. Tammany Parish, Louisiana Employment by Age

LaborForceParticipation

St. Tammany Parish, Louisiana Employment by Race

LaborForceParticipation

St. Tammany Parish, Louisiana Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

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

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

68.37%

Born in St. Tammany Parish, Louisiana

93.5%

Native Born

4.18%

Foreign Born

2.16%

Non Citizen

2.02%

Naturalized

Place of Birth

93.5% of St. Tammany Parish, Louisiana residents were born in the United States, with 68.37% having been born in Louisiana. 2.16% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

St. Tammany Parish, Louisiana Place of Birth

Sources