Sac County Iowa (Historic Districts) has 4 places on the National Register of Historic Places including 3 places of Statewide significance. Significant places include Blackhawk State Park, Black Hawk Preserve (Area B), Blackhawk State Park, Wildlife Preserve Area (Area A) and Lakeside Park Historic District, Blackhawk State Park, Black Hawk Preserve (Area B) and Blackhawk State Park, Wildlife Preserve Area (Area A).
Some of the country's most noteable architects helped create the Sac County places including Ames Central Design Office and Company 1776-V CCC Camp SP-8. Prominent architectural styles found in Sac Country are Classical Revival.
