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World Population Review
St. Tammany Parish, Louisiana Population 2021
St. Tammany Parish, Louisiana's estimated population is 265,187 with a growth rate of 0.91% in the past year according to the most recent United States census data. St. Tammany Parish, Louisiana is the 5th largest county in Louisiana. The 2010 Population was 234,544 and has seen a growth of 13.06% since this time.
Note: 2020 and 2021 data is projected
| Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2021 | 265,187 | 2,384 | 0.91% |
| 2020 | 262,803 | 2,384 | 0.92% |
| 2019 | 260,419 | 2,384 | 0.92% |
| 2018 | 258,035 | 2,114 | 0.83% |
| 2017 | 255,921 | 3,453 | 1.37% |
| 2016 | 252,468 | 3,538 | 1.42% |
| 2015 | 248,930 | 3,693 | 1.51% |
| 2014 | 245,237 | 3,284 | 1.36% |
| 2013 | 241,953 | 2,889 | 1.21% |
| 2012 | 239,064 | 2,218 | 0.94% |
| 2011 | 236,846 | 2,302 | 0.98% |
| 2010 | 234,544 | 90,036 | 62.31% |
| 1990 | 144,508 | 33,639 | 30.34% |
| 1980 | 110,869 | 47,284 | 74.36% |
| 1970 | 63,585 | 24,942 | 64.54% |
| 1960 | 38,643 | 11,655 | 43.19% |
| 1950 | 26,988 | 3,364 | 14.24% |
| 1940 | 23,624 | 2,695 | 12.88% |
| 1930 | 20,929 | 284 | 1.38% |
| 1920 | 20,645 | 1,728 | 9.13% |
| 1910 | 18,917 | 5,582 | 41.86% |
| 1900 | 13,335 | 3,175 | 31.25% |
| 1890 | 10,160 | 3,273 | 47.52% |
| 1880 | 6,887 | 1,301 | 23.29% |
| 1870 | 5,586 | 180 | 3.33% |
| 1860 | 5,406 | -958 | -15.05% |
| 1850 | 6,364 | 1,766 | 38.41% |
| 1840 | 4,598 | 1,734 | 60.54% |
| 1830 | 2,864 | 1,141 | 66.22% |
| 1820 | 1,723 | 0.00% |
2021 Growth Rate
0.91%
County Website
State
Founded
October 27, 1810
County Seat
Lat./Long.
2010 Population
234,544
Growth Since 2010
13.06%
St. Tammany Parish, Louisiana Population Growth
| Race | Population | Percentage |
|---|---|---|
| White | 211,276 | 82.80% |
| Black or African American | 30,925 | 12.12% |
| Two or More Races | 4,740 | 1.86% |
| Asian | 4,135 | 1.62% |
| Some Other Race | 2,539 | 1.00% |
| American Indian and Alaska Native | 1,489 | 0.58% |
| Native Hawaiian and Other Pacific Islander | 51 | 0.02% |
St. Tammany Parish, Louisiana Population by Race
St. Tammany Parish, Louisiana Population Pyramid $2021
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St. Tammany Parish, Louisiana Population by Age
St. Tammany Parish, Louisiana Households and Families
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 92,962 | 2.72 | 78.4 |
| Married | 49,459 | 3.28 | 89.3 |
| Non Family | 27,584 | 1.22 | 64.6 |
| Female | 12,105 | 3.51 | 66.4 |
| Male | 3,814 | 3.78 | 74.5 |
3.28
Average Family Size
2.72
Average Household Size
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St. Tammany Parish, Louisiana Households by Type
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| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 5,115 | 2.93% |
| 9th to 12th Grade | 11,366 | 6.52% |
| High School Graduate | 46,450 | 26.64% |
| Some College | 41,041 | 23.54% |
| Associates Degree | 11,382 | 6.53% |
| Bachelors Degree | 38,209 | 21.92% |
| Graduate Degree | 20,769 | 11.91% |
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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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| Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 141,382 | 130,430 | 51,223 |
| Black | 19,011 | 16,249 | 4,119 |
| Hispanic | 8,695 | 6,586 | 1,506 |
| Asian | 2,841 | 2,444 | 1,427 |
| 2+ Races | 1,726 | 1,571 | 409 |
| Other Race | 1,661 | 996 | 268 |
| Native American | 985 | 846 | 180 |
| Islander | 13 |
The highest rate of high school graduation is among white people with a rate of 92.25%.
The highest rate of bachelors degrees is among asian people with a rate of 50.23%.
St. Tammany Parish, Louisiana Educational Attainment by Race
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$42,780
Average Earnings
$54,082
Average Male
$33,114
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
93.41% of St. Tammany Parish, Louisiana residents speak only English, while 6.59% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 3.99% of the population.
St. Tammany Parish, Louisiana Language
St. Tammany Parish, Louisiana Poverty by Race
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| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 198,889 | 18,305 | 9.20% |
| Black | 30,086 | 5,695 | 18.93% |
| Hispanic | 14,177 | 3,305 | 23.31% |
| Multiple | 4,670 | 1,221 | 26.15% |
| Other | 2,500 | 930 | 37.20% |
| Asian | 4,119 | 523 | 12.70% |
| Native | 1,476 | 322 | 21.82% |
11.47%
Overall Poverty Rate
9.90%
Male Poverty Rate
12.93%
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 37.20% below the poverty level.
The race least likely to be in poverty in St. Tammany Parish, Louisiana is White, with 9.20% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 2.28%. Among those working part-time, it was 14.34%, and for those that did not work, the poverty rate was 17.88%.
St. Tammany Parish, Louisiana Poverty
St. Tammany Parish, Louisiana Poverty Rate by Education
St. Tammany Parish, Louisiana Marital Status
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Marriage Rates
51.4%
Overall Marriage Rate
53.8%
Male Marriage Rate
49.1%
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 55-64, while the female age group most likely to be married is 35-44.
St. Tammany Parish, Louisiana Marital Status by Race
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St. Tammany Parish, Louisiana Marital Status
St. Tammany Parish, Louisiana Veterans by War
St. Tammany Parish, Louisiana Veterans by Age
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| Name | Veterans | % of Total |
|---|---|---|
| White | 14,040 | 8.61% |
| Black | 2,256 | 10.37% |
| Hispanic | 697 | 7.08% |
| 2+ Races | 175 | 8.03% |
| Asian | 125 | 3.98% |
| Native American | 117 | 10.60% |
| Other Race | 104 | 5.53% |
St. Tammany Parish, Louisiana Veterans by Race
St. Tammany Parish, Louisiana Veterans by Education
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7.95%
Veteran Poverty Rate
33.43%
Veteran Disability Rate
St. Tammany Parish, Louisiana Veterans by Education
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62.5%
Labor Force Participation
58.8%
Employment Rate
5.5%
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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95.91%
Native Born
4.09%
Foreign Born
2.15%
Non Citizen
1.94%
Naturalized
Place of Birth
95.91% of St. Tammany Parish, Louisiana residents were born in the United States, with 69.40% having been born in Louisiana. 2.15% 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
- US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
- Population of States and Counties of the United States: 1790 - 1990