Frankfort is a city located in South Dakota. With a 2020 population of 158, it is the 198th largest city in South Dakota and the 17331st largest city in the United States. Frankfort is currently growing at a rate of 1.28% annually and its population has increased by 6.04% since the most recent census, which recorded a population of 149 in 2010. Frankfort reached it's highest population of 159 in 2012. Spanning over 1 miles, Frankfort has a population density of 201 people per square mile.
The average household income in Frankfort is $43,364 with a poverty rate of 17.02%. The median rental costs in recent years comes to - per month, and the median house value is $38,100. The median age in Frankfort is 57.5 years, 53 years for males, and 62.5 years for females. For every 100 females there are 95.8 males.