St. Maries is a city located in Idaho. With a 2020 population of 2,516, it is the 54th largest city in Idaho and the 6797th largest city in the United States. St. Maries is currently growing at a rate of 1.37% annually and its population has increased by 4.75% since the most recent census, which recorded a population of 2,402 in 2010. Spanning over 1 miles, St. Maries has a population density of 2,119 people per square mile.
The average household income in St. Maries is $49,347 with a poverty rate of 14.63%. The median rental costs in recent years comes to $533 per month, and the median house value is $145,300. The median age in St. Maries is 46.6 years, 44.1 years for males, and 47.7 years for females. For every 100 females there are 101.2 males.