St. Francis is a city located in South Dakota. With a 2020 population of 574, it is the 108th largest city in South Dakota and the 12732nd largest city in the United States. St. Francis is currently growing at a rate of 0.17% annually but its population has decreased by -19.04% since the most recent census, which recorded a population of 709 in 2010. Spanning over 0 miles, St. Francis has a population density of 1,585 people per square mile.
The average household income in St. Francis is $29,918 with a poverty rate of 58.73%. The median rental costs in recent years comes to $463 per month, and the median house value is $10,000. The median age in St. Francis is 27.6 years, 24.3 years for males, and 29.7 years for females. For every 100 females there are 85.2 males.