In 2022, the population of Hays was 249, a 3.75% increase year-by-year from 2021. Previously, in 2021, Hays's population was 240, an increase of 3.90% compared to a population of 231 in 2020.
The median age in Hays, TX is 59.8, as per 2021 ACS 5-Year Estimates. Of the total population, 12.16% were under the age of 15, 6.08% aged 15 to 29, 37.84% aged 30 to 64, 37.84% aged 65 to 84, and 6.08% were 85 years of age and older.