- 2000: 12,100
- 2010: 11,341
- 2015: 11,265
- 2018: 10,712
Named after: John Hancock, a leader of the Continental Congress during the American Revolution.
Annual tourism impact: More than $6 million in visitor spending.
Must-see sites: Armstrong House Museum, George E. Stubbins House, Hancock County Agriculture Museum and Pioneer Village, Hobo Museum, Heritage Park Of North Iowa, The Mansion Museum, Hancock County Courthouse and Liberty School Museum.
Total workforce: 6,050
Median household income: $57,222