De Kalb is a city located in Kemper County Mississippi. It is also the county seat of Kemper County. With a 2020 population of 977, it is the 154th largest city in Mississippi and the 10389th largest city in the United States . De Kalb is currently declining at a rate of -1.51% annually and its population has decreased by -16.07% since the most recent census, which recorded a population of 1,164 in 2010. De Kalb reached it's highest population of 1,135 in 2010. Spanning over 3 miles, De Kalb has a population density of 294 people per square mile.
The average household income in De Kalb is $40,429 with a poverty rate of 25.04%. The median rental costs in recent years comes to $482 per month, and the median house value is $65,700. The median age in De Kalb is 44.7 years, 40.4 years for males, and 47.5 years for females.