Sponsored Topics. Greenwood is a city in Clark County in the U.S. state of Wisconsin. The population was 1,079 at the 2000 census. Greenwood is located at 44°46′4″N 90°35′56″W / 44.76778°N 90.59889°W / 44.76778; -90.59889 (44.767826, -90.598959).