In 2022, the population of Foster was 43, a 0.00% decrease year-by-year from 2021. Previously, in 2021, Foster's population was 43, a decline of 0.00% compared to a population of 43 in 2020.
The median age in Foster, NE is 58.8, as per 2021 ACS 5-Year Estimates. Of the total population, 6.90% were under the age of 15, 24.14% aged 15 to 29, 24.14% aged 30 to 64, 44.83% aged 65 to 84, and 0.00% were 85 years of age and older.