St. Tammany Parish LA Information


St. Tammany Parish Subdivisions

St. Tammany Parish LA Data & Demographics (As of July 1, 2015)


Total Population 247,750
Population in Households 246,475
Population in Familes 208,702
Population in Group Qrtrs 1,275
Population Density1 293
Diversity Index2 38


Total Households 93,799
Average Household Size 2.63
Family Households 67,944
Average Family Size 3


Total Housing Units 101,600 (100%)
Owner Occupied HU 72,191 (71.1%)
Renter Occupied HU 21,608 (21.3%)
Vacant Housing Units 7,801 ( 7.7%)
Median Home Value $192,383
Average Home Value $229,490


Median Household Income $62,688
Average Household Income $85,682
Per Capita Income $32,507
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 1.11% 1.16%
Households 1.33% 1.23%
Families 1.14% 1.06%
Median Household Income   2.34%
Per Capita Income   2.42%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.


St. Tammany Parish LA - Peer Comparisons by Rank and Percentile

The table below compares St. Tammany Parish to the other 64 parishes and parish equivalents in Louisiana by rank and percentile using July 1, 2015 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 5 94th
Population Density1 # 6 92nd
Diversity Index2 # 56 13th
Median Household Income # 2 98th
Per Capita Income # 1 100th

Additional comparisons and rankings can be made with a VERY EASY TO USE Louisiana Census Data Comparison Tool.