Shelbyville is a city located in Shelby County Indiana. It is also the county seat of Shelby County. With a 2020 population of 19,663, it is the 48th largest city in Indiana and the 1889th largest city in the United States . Shelbyville is currently growing at a rate of 0.66% annually and its population has increased by 2.46% since the most recent census, which recorded a population of 19,191 in 2010. Shelbyville reached it's highest population of 19,663 in 2021. Spanning over 13 miles, Shelbyville has a population density of 1,580 people per square mile.
The average household income in Shelbyville is $62,158 with a poverty rate of 16.60%. The median rental costs in recent years comes to $795 per month, and the median house value is $102,100. The median age in Shelbyville is 36.2 years, 35.2 years for males, and 37.1 years for females.