# Population by age band — research 2026-10-04

Share of the population in four bands, from each country's statistics office, for weighting a drawn birthdate by age. Computed from single-year ages.

| Country | Date | Total | 0–17 | 18–64 | 65–99 | 100+ | Source |
|---|---|---|---|---|---|---|---|
| SE | 2024-12-31 | 10,587,710 | 20.36% | 58.80% | 20.81% | 0.028% (2,961) | SCB Statistikdatabasen, table BE0101A/BefolkningNy, CC0 1.0 |
| US | 2024-07-01 | 340,110,988 | 21.50% | 60.51% | 17.96% | 0.029% (98,034) | Census Bureau, [nc-est2024-agesex-res.csv](https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/national/asrh/nc-est2024-agesex-res.csv), public domain |

At 0.03%, a fixture of 10,000 rows holds about three people aged 100 or more.