Millennials are generally defined as people born between 1981 and 1996, which puts them at roughly 29–44 years old in the mid‑2020s.

Millennial age in simple terms

  • Birth years: 1981–1996 is the most widely accepted range used by major researchers and organizations.
  • Current ages (around 2025–2026): About 29 to 44 years old.
  • Position among generations: They come after Generation X (1965–1980) and before Generation Z (1997–2012).

Why there’s some confusion

Most demographic and research groups cluster millennials as 1981–1996, but some sources stretch it slightly (for example, 1980–2000 or 1981–1999), which is why you sometimes see small differences online.

If your birth year is between 1981 and 1996, you’re solidly considered a millennial by the most commonly used definitions today.