In 2022, the population of Mclean was 36, a 0.00% decrease year-by-year from 2021. Previously, in 2021, Mclean's population was 36, a decline of 0.00% compared to a population of 36 in 2020.
The median age in Mclean, NE is 24.0, as per 2021 ACS 5-Year Estimates. Of the total population, 6.06% were under the age of 15, 48.48% aged 15 to 29, 27.27% aged 30 to 64, 12.12% aged 65 to 84, and 6.06% were 85 years of age and older.