San Antonio Texas Population 2024 By Age. The student population of san antonio, tx in 2022 is skewed towards women, with 52,994 male students and 77,813 female. The median age in 2021 was 33.9 years, with a median income of.

This figure is an estimate and may slightly change as people get born. City last year, gaining 22,000 residents even as other cities saw their populations plateau — or shrink — as.