This study investigates players who have been selected to a district team in the Swedish Football Association U15 talent programme. Using register data on all selected 15-year-old boy and girl district team players (3943 boys and 4056 girls born between 1986 and 1996) from Sweden’s 24 football districts, we analysed the relationships between club affiliation at age 15, the player population of the district, date of birth, and continuation with football and competitive level as young adults. The results show that a higher percentage of boys than girls continued playing football into young adulthood and that continuation is related to district size. Belonging to an elite club at age 15 reduces the likelihood of girls playing football at age 21, but it has no effect on the likelihood of boys playing football at age 21. In addition, 15-year-old boys and girls from larger districts who played on an elite club at age 15 were more likely to play elite football at age 21. In sum, the study shows that football district size and club affiliation at age 15 affect whether boys and girls continue to play football and whether they play at an elite level as young adults.