Chicago Police Department attributed the decrease in murders and shootings to "hard work by officers, adding more sworn personnel, investing in new technology to drive our smart policing strategy, and increasing partnerships."
In 2017, the city had 2,785 shooting incidents and 3,457 shooting victims, which was a decrease from the 3,550 shooting incidents and 4,349 shooting victims in 2016, according to the newly released statistics.
"I am proud of the progress our officers made in reducing gun violence all across the city in 2017, but none of us are satisfied," said Chicago Police Superintendent Eddie Johnson in a statement. "In 2018, we are going to work to build on the progress we made last year -- to reduce gun violence, to save lives and to find justice for victims."
Police also said that total citywide crime complaints had fallen by 2% and that they had made 27% more gun arrests in 2017.
Chicago also has been a frequent target of criticism for President Donald Trump, who has talked and tweeted about the failure to fight gun violence there.
The first two districts equipped with strategic decision support centers saw respectively a 43% and 26% reduction in shootings, according to police.