In 2022, the population of Mchenry was 64, a 0.00% decrease year-by-year from 2021. Previously, in 2021, Mchenry's population was 64, an increase of 1.59% compared to a population of 63 in 2020.
The median age in Mchenry, ND is 57.1, as per 2021 ACS 5-Year Estimates. Of the total population, 5.26% were under the age of 15, 21.05% aged 15 to 29, 65.79% aged 30 to 64, 2.63% aged 65 to 84, and 5.26% were 85 years of age and older.