Hillsdale township is located in Eddy County, North Dakota. Hillsdale township has a 2026 population of 36. Hillsdale township is currently growing at a rate of 2.86% annually and its population has decreased by 0% since the most recent census, which recorded a population of 36 in 2020.
The median age in Hillsdale township is 31.4 years: 32.6 years for males, and 30.6 years for females. For every 100 females there are 82.6 males.