 henning is a city in otter tail county, minnesota, united states. the population was 802 at the 2010 census. ==geography== according to the united states census bureau, the city has a total area of , of which  is land and  is water.{{cite web|title=us gazetteer files 2010|url=ht
Cities_in_Minnesota Cities_in_Otter_Tail_County,_Minnesota