St. Tammany Parish, Louisiana Population 2019

St. Tammany Parish, Louisiana's estimated population is 255,820 with a growth rate of 1.36% in the past year according to the most recent United States census data. St. Tammany Parish, Louisiana is the 4th largest county in Louisiana.

Year Population Growth Growth Rate
2018258,1112,2910.90%
2017255,8203,4311.36%
2016252,3893,4761.40%
2015248,9133,6811.50%
2014245,2323,2911.36%
2013241,9412,9001.21%
2012239,0412,2280.94%
2011236,8132,2760.97%
2010234,53790,02962.30%
1990144,50833,63930.34%
1980110,86947,28474.36%
197063,58524,94264.54%
196038,64311,65543.19%
195026,9883,36414.24%
194023,6242,69512.88%
193020,9292841.38%
192020,6451,7289.13%
191018,9175,58241.86%
190013,3353,17531.25%
189010,1603,27347.52%
18806,8871,30123.29%
18705,5861803.33%
18605,406-958-15.05%
18506,3641,76638.41%
18404,5981,73460.54%
18302,8641,14166.22%
18201,7230.00%

St. Tammany Parish, Louisiana Population Growth

Population Data via

Population by Race

Race Population
White207,710
Black or African American29,050
Two or More Races4,762
Asian3,875
Some Other Race2,435
American Indian and Alaska Native1,279
Native Hawaiian and Other Pacific Islander90

St. Tammany Parish, Louisiana Population Pyramid 2019

St. Tammany Parish, Louisiana Median Age

39.8


Total

38.6


Male

41


Female

St. Tammany Parish, Louisiana Adults

There are 188,278 adults, (38,299 of whom are seniors) in St. Tammany Parish, Louisiana.

St. Tammany Parish, Louisiana Age Dependency

66.2

Age Dependency Ratio

25.5

Old Age Dependency Ratio

40.6

Child Dependency Ratio

St. Tammany Parish, Louisiana Sex Ratio

Female

127,933

51.34%

Male

121,268

48.66%

St. Tammany Parish, Louisiana Households and Families

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

St. Tammany Parish, Louisiana Household Types

Type Owner Renter
Married89.3%10.7%
All78.2%21.8%
Male71%29%
Non Family64.8%35.2%
Female62.2%37.8%

78.2%

Rate of Home Ownership

Type Count Average Size Owned
All91,3532.778.2
Married50,0823.2189.3
Non Family25,6181.2364.8
Female11,5453.4262.2
Male4,1083.5871

3.2

Average Family Size

2.7

Average Household Size

5.1%

Unmarried (Opposite Sex)

0.2%

Unmarried (Same Sex)

St. Tammany Parish, Louisiana Education

Education Attained Count Percentage
Less Than 9th Grade5,0532.99%
9th to 12th Grade12,6287.47%
High School Graduate43,84325.93%
Some College41,86524.76%
Associates Degree10,6896.32%
Bachelors Degree35,59721.05%
Graduate Degree19,43311.49%

St. Tammany Parish, Louisiana Educational Attainment by Race

Name Total High School Bachelors
White138,004126,23347,993
Black17,70014,5093,234
Hispanic8,1236,1171,786
Asian2,6102,2511,385
Multiple Races1,9911,714547
Other Race1,5671,057240
Native American85465393
Islander4110

The highest rate of high school graduation is among white people with a rate of 91.47%.

The highest rate of bachelors degrees is among white people with a rate of 53.07%.

Name Average Male Female
Overall$41,201$53,199$31,306
Less Than High School$22,500$27,522$16,253
High School Grad$31,077$39,984$24,270
Some College$38,467$51,682$27,455
Bachelors Degree$51,472$73,028$40,194
Graduate Degree$75,349$101,704$59,423

$41,201

Average Earnings

$53,199

Average Male

$31,306

Average Female

St. Tammany Parish, Louisiana Language

St. Tammany Parish, Louisiana Language by Age

St. Tammany Parish, Louisiana Language

93.60% of St. Tammany Parish, Louisiana residents speak only English, while 6.40% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 3.78% of the population.

St. Tammany Parish, Louisiana Poverty

St. Tammany Parish, Louisiana Poverty by Race

Name Total In Poverty Poverty Rate
White195,46615,8468.11%
Black28,2415,73220.30%
Hispanic13,3292,94722.11%
Multiple4,7311,44330.50%
Other2,37465227.46%
Asian3,85855214.31%
Native1,27340431.74%

10.77%

Overall Poverty Rate

9.37%

Male Poverty Rate

12.09%

Female Poverty Rate

Poverty in St. Tammany Parish, Louisiana

The race most likely to be in poverty in St. Tammany Parish, Louisiana is Native, with 31.74% below the poverty level.

The race least likely to be in poverty in St. Tammany Parish, Louisiana is White, with 8.11% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.49%. Among those working part-time, it was 13.87%, and for those that did not work, the poverty rate was 16.92%.

Name Poverty
Less Than High School25.30%
High School11.63%
Some College8.67%
Bachelors or Greater3.65%
Name Poverty
Female Unemployed37.82%
Male Unemployed33.86%
Female Employed6.72%
Male Employed4.28%

St. Tammany Parish, Louisiana Income

St. Tammany Parish, Louisiana Income by Household Type

Name Median Mean
Households$66,539$88,031
Families$79,154$101,468
Married Families$93,549$116,634
Non Families$34,258$49,895

St. Tammany Parish, Louisiana Marital Status

St. Tammany Parish, Louisiana Marital Status

Marriage Rates

52.9%

Overall Marriage Rate

55.0%

Male Marriage Rate

51.0%

Female Marriage Rate

St. Tammany Parish, Louisiana Married by Age and Sex

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 35-44.

St. Tammany Parish, Louisiana Marital Status by Race

St. Tammany Parish, Louisiana Veterans

16,957

Number of Veterans

15,392

Male Veterans

1,565

Female Veterans

War Veterans
Vietnam5,834
First Gulf War4,432
Second Gulf War2,990
Korea1,409
World War II531

St. Tammany Parish, Louisiana Veterans by Race

Name Veterans % of Total
White14,2768.96%
Black2,17210.61%
Hispanic6186.63%
2 or More2018.12%
Other1578.94%
Indian828.38%
Asian692.45%

St. Tammany Parish, Louisiana Veterans by Education

8.21%

Veteran Poverty Rate

31.17%

Veteran Disability Rate

St. Tammany Parish, Louisiana Employment Status

63.6%

Labor Force Participation

59.3%

Employment Rate

6.4%

Unemployment Rate

Population of Cities in St. Tammany Parish, Louisiana

City 2010 Census 2016 Estimated Growth Growth Rate
Slidell27068280139453.49%
Mandeville11931124244934.13%
Covington885010310146016.50%
Pearl River240925521435.94%
Abita Springs236725291626.84%
Madisonville7488358711.63%
Folsom7188109212.81%
Sun469490214.48%
  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