Harmon, North Dakota Census-designated place & Unincorporated community Street in Harmon Harmon, North Dakota Coordinates: 46°57′06″N 100°57′09″W﻿ / ﻿46.95167°N 100.95250°W﻿ / 46.95167; -100.95250Coordinates: 46°57′06″N 100°57′09″W﻿ / ﻿46.95167°N 100.95250°W﻿ / 46.95167; -100.95250 Country United States State North Dakota County Morton Area[1] • Total 1.567 sq mi (4.06 km2) • Land 1.567 sq mi (4.06 km2) • Water 0 sq mi (0 km2) Elevation 1,647 ft (502 m) Population (2010)[2] • Total 145 • Density 93/sq mi (36/km2) Time zone Central (CST) (UTC-6) • Summer (DST) CDT (UTC-5) Area code(s) 701 GNIS feature ID 1033862[3]