Indianapolis, IN
– Population change: 427,991 increase (+100%)
– 2016 population: 855,164
– 1950 population: 427,173
The automobile industry in the late 1800s brought thousands of Americans to Indianapolis. In 1970, the city’s population saw another major surge when Indianapolis and Marion County merged, increasing the city’s population by nearly half overnight.
A 2018 study at Indiana University found that Indianapolis and its surrounding areas represent the region of highest population growth anywhere in the state.
