St. Tammany Parish, Louisiana's estimated 2024 population is 277,929 with a growth rate of 0.85% 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 234,564 and has seen a growth of 18.49% since that time.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 289,659 | 2,346 | 0.82% |
| 2028 | 287,313 | 2,346 | 0.82% |
| 2027 | 284,967 | 2,346 | 0.83% |
| 2026 | 282,621 | 2,346 | 0.84% |
| 2025 | 280,275 | 2,346 | 0.84% |
| 2024 | 277,929 | 2,346 | 0.85% |
| 2023 | 275,583 | 2,346 | 0.86% |
| 2022 | 273,237 | 3,090 | 1.14% |
| 2021 | 270,147 | 5,147 | 1.94% |
| 2020 | 265,000 | 3,697 | 1.41% |
| 2019 | 261,303 | 2,705 | 1.05% |
| 2018 | 258,598 | 2,386 | 0.93% |
| 2017 | 256,212 | 3,536 | 1.4% |
| 2016 | 252,676 | 3,560 | 1.43% |
| 2015 | 249,116 | 3,726 | 1.52% |
| 2014 | 245,390 | 3,316 | 1.37% |
| 2013 | 242,074 | 2,920 | 1.22% |
| 2012 | 239,154 | 2,254 | 0.95% |
| 2011 | 236,900 | 2,336 | 1% |
| 2010 | 234,564 | 0 | 0% |
| 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 | -287,936 | -99.41% |
White
Black or African American
Two or more races
Asian
Other race
Native American
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 101,212 | 2.61 | 79.1 | 20.9 |
| Married | 52,993 | 3.16 | 89.8 | 10.2 |
| Non Family | 29,949 | 1.21 | 67.4 | 32.6 |
| Female | 13,240 | 3.33 | 64.9 | 35.1 |
| Male | 5,030 | 3.19 | 73.6 | 26.4 |
3.12
Average Family Size
2.61
Average Household Size
79.1%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among white people with a rate of 93.03%.
The highest rate of bachelors degrees is among white people with a rate of 39.27%.
All
Male
Female
$50,349
Average Earnings
$61,953
Average Male
$40,382
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
93.64% of St. Tammany Parish, Louisiana residents speak only English, while 6.36% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 3.6% of the population.
rate
11.66%
Overall Poverty Rate
10.23%
Male Poverty Rate
13.02%
Female Poverty Rate
The race most likely to be in poverty in St. Tammany Parish, Louisiana is Islander, with 35.85% below the poverty level.
The race least likely to be in poverty in St. Tammany Parish, Louisiana is Asian, with 7.72% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 2.63%. Among those working part-time, it was 12.24%, and for those that did not work, the poverty rate was 18.63%.
Married
Widowed
Divorced
Separated
NeverMarried
52.5%
Overall Marriage Rate
55.2%
Male Marriage Rate
49.9%
Female Marriage Rate
male
female
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.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
7.59%
Veteran Poverty Rate
34.51%
Veteran Disability Rate
LaborForceParticipation
62.5%
Labor Force Participation
58.6%
Employment Rate
5.2%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
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.
Europe
Asia
Africa
Oceania
Latin America
North America
70.53%
Born in St. Tammany Parish, Louisiana
95.65%
Native Born
4.35%
Foreign Born
2.28%
Non Citizen
2.07%
Naturalized
95.65% of St. Tammany Parish, Louisiana residents were born in the United States, with 70.53% having been born in Louisiana. 2.28% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.