Greenwood is a city in Johnson County, Indiana, United States. The population was 49,791 at the 2010 Census, and increased to 56,545 in the Census 2016 estimates. Greenwood is located between Indiana State Road 37 and Interstate 65. The city shares a border with Indianapolis and is the most populous suburb in the southern portion of the Indianapolis Metropolitan Area.The current Mayor of Greenwood is Mark W. Myers, who is serving his second term in this position. Mayor Myers is also a Reserve Deputy Sheriff for the Johnson County Sheriff’s Office.