St. Martin Parish LA Information


St. Martin Parish Subdivisions

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


Total Population 53,766
Population in Households 53,065
Population in Familes 44,662
Population in Group Qrtrs 701
Population Density1 73
Diversity Index2 51


Total Households 20,098
Average Household Size 2.64
Family Households 14,426
Average Family Size 3


Total Housing Units 22,964 (100%)
Owner Occupied HU 15,412 (67.1%)
Renter Occupied HU 4,686 (20.4%)
Vacant Housing Units 2,866 (12.5%)
Median Home Value $114,854
Average Home Value $146,423


Median Household Income $43,364
Average Household Income $56,467
Per Capita Income $21,278
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.58% 0.58%
Households 0.86% 0.67%
Families 0.66% 0.5%
Median Household Income   3.01%
Per Capita Income   2.56%
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. Martin Parish LA - Peer Comparisons by Rank and Percentile

The table below compares St. Martin 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 # 23 66th
Population Density1 # 26 61st
Diversity Index2 # 37 42nd
Median Household Income # 25 63rd
Per Capita Income # 35 47th

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