St. Martin is a city located in Mississippi. St. Martin has a 2020 population of 7,963. St. Martin is currently declining at a rate of 0.00% annually and its population has increased by 3.01% since the most recent census, which recorded a population of 7,730 in 2010. St. Martin reached it's highest population of 8,245 in 2016.
The average household income in St. Martin is $56,493 with a poverty rate of 12.48%. The median rental costs in recent years comes to $901 per month, and the median house value is $126,000. The median age in St. Martin is 36.3 years, 31.6 years for males, and 37.7 years for females.