In 2022, the population of Miller was 129, a 0.77% decrease year-by-year from 2021. Previously, in 2021, Miller's population was 130, a decline of 0.00% compared to a population of 130 in 2020.
The median age in Miller, NE is 55.7, as per 2021 ACS 5-Year Estimates. Of the total population, 15.17% were under the age of 15, 12.36% aged 15 to 29, 43.82% aged 30 to 64, 26.97% aged 65 to 84, and 1.69% were 85 years of age and older.