St. Martin Parish LA Information


St. Martin Parish Subdivisions

St. Martin Parish LA Data & Demographics (As of July 1, 2017)


Total Population 55,795
Daytime Population: Workers 13,054
Daytime Population: Residents 34,062
Total Daytime Population (TDP) 47,116
Ratio TDP/Total Population1 0.84
Population in Households 55,094
Population in Familes 46,316
Population in Group Qrtrs 701
Population Density2 76
Diversity Index3 51


Median Household Income $44,611
Average Household Income $61,072
Per Capita Income $22,774


Total Housing Units 23,310 (100%)
Owner Occupied HU 15,525 (66.6%)
Renter Occupied HU 4,888 (21.0%)
Vacant Housing Units 2,897 (12.4%)
Median Home Value $111,581
Average Home Value $144,021


Total Households 20,413
Average Household Size 2.7
Family Households 14,562
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood 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.


2010-2017 2017-2022
Population 0.93% 0.9%
Households 0.84% 0.84%
Families 0.61% 0.7%
Median Household Income   2.73%
Per Capita Income   2.86%


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, 2017 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 # 20 70th
Population Density # 26 61st
Diversity Index # 36 45th
Median Household Income # 22 67th
Per Capita Income # 30 55th

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