St. Tammany Parish, Louisiana Population 2022

St. Tammany Parish, Louisiana's estimated population is 270,736 with a growth rate of 1.15% 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 15.83% since this time.

Note: 2021 and 2022 data is projected
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St. Tammany Parish, Louisiana Population Growth

Population by Race

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St. Tammany Parish, Louisiana Population by Race

St. Tammany Parish, Louisiana Population Pyramid 2022

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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

Age Dependency Ratio

28.8

Old Age Dependency Ratio

40.5

Child Dependency Ratio

St. Tammany Parish, Louisiana Sex Ratio

Female

132,943

51.44%

Male

125,504

48.56%

St. Tammany Parish, Louisiana Population by Age

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

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St. Tammany Parish, Louisiana Household Types

78.5%

Rate of Home Ownership

St. Tammany Parish, Louisiana Households and Families

3.22

Average Family Size

2.69

Average Household Size

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St. Tammany Parish, Louisiana Households by Type

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

St. Tammany Parish, Louisiana Educational Attainment by Race

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The highest rate of high school graduation is among white people with a rate of 91.98%.

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

St. Tammany Parish, Louisiana Educational Attainment by Race

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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

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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

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10.97%

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 Multiple, with 22.14% below the poverty level.

The race least likely to be in poverty in St. Tammany Parish, Louisiana is Other, with NaN% 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 13.20%, and for those that did not work, the poverty rate was 18.59%.

St. Tammany Parish, Louisiana Poverty

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St. Tammany Parish, Louisiana Poverty Rate by Education

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

St. Tammany Parish, Louisiana Income by Household Type

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Income by Household Type

St. Tammany Parish, Louisiana Marital Status

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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

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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

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St. Tammany Parish, Louisiana Marital Status

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15,768

Number of Veterans

Male Veterans

Female Veterans

St. Tammany Parish, Louisiana Veterans by War

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St. Tammany Parish, Louisiana Veterans by Age

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St. Tammany Parish, Louisiana Veterans by Race

St. Tammany Parish, Louisiana Veterans by Education

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6.54%

Veteran Poverty Rate

29.78%

Veteran Disability Rate

St. Tammany Parish, Louisiana Veterans by Education

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62%

Labor Force Participation

58.1%

Employment Rate

5.3%

Unemployment Rate

St. Tammany Parish, Louisiana Employment by Age

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St. Tammany Parish, Louisiana Employment by Race

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St. Tammany 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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69.99%

Born in St. Tammany Parish, Louisiana

95.72%

Native Born

4.28%

Foreign Born

2.21%

Non Citizen

2.07%

Naturalized

Place of Birth

95.72% of St. Tammany Parish, Louisiana residents were born in the United States, with 69.99% having been born in Louisiana. 2.21% 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

  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