These eight mailboxes represent the remaining households and businesses in the unincorporated community of Knoke, located in the northwest corner of Calhoun County, Iowa. Knoke was home to a full-time post office through 1963, when it was shuttered in favor of a locally-operated contract branch office; that office operated 25 years before it was discontinued. Knoke is now part of a rural route originating in the nearby community of Fonda.