In Groton, the youth population showed some fluctuations between 2020 and 2023. The 0-4 age group increased from 565 in 2020 to 645 in 2021, before decreasing to 520 in 2023. The 5-9 and 10-14 age groups remained relatively stable, while the 15-17 age group decreased slightly after a peak in 2021.