Quick facts for people born in 2004
| Age in 2026 | 21 or 22 |
| Generation | Generation Z (1997–2012) |
| Chinese zodiac | Monkey (from Lunar New Year) |
| Leap year | Yes, 2004 had 366 days |
| January 1, 2004 fell on | a Thursday |
| Social Security full retirement age | 67 |
| Medicare eligibility (age 65) | 2069 |
How the answer is worked out
Subtract your birth year from the current year: 2026 − 2004 = 22. That is your age once your birthday has passed this year. Until then you are one year younger, 21. For example, someone born in March 2004 is 22 from March onward, while someone born in November 2004 stays 21 until their November birthday.
What generation is 2004?
People born in 2004 belong to Generation Z. The Pew Research Center, whose definitions are the most widely used in the US, places this generation from 1997 to 2012. Generation boundaries are conventions rather than strict rules, so you may also see slightly different ranges elsewhere.
Chinese zodiac for 2004
2004 is the Year of the Monkey. The Chinese zodiac follows the lunar calendar, and Lunar New Year falls in late January or February. If you were born in January or early February 2004, before that year’s Lunar New Year, your sign is the Goat instead.
Retirement and Medicare
For people born in 2004, the Social Security Administration sets the full retirement age at 67. You can start reduced benefits as early as 62, which for this birth year was or will be 2066, and Medicare eligibility begins at 65, in 2069. The SSA notes that anyone born on January 1 should use the rules for the previous year.
Milestones for people born in 2004
| Age | Year | Milestone |
|---|---|---|
| 16 | 2020 | Turned 16. Full driver’s license possible in many US states |
| 18 | 2022 | Turned 18. Voting age in US elections |
| 21 | 2025 | Turned 21. Legal drinking age in the US |
| 25 | 2029 | Will turn 25. Car rental usually without a young-driver fee |
| 26 | 2030 | Will turn 26. Coverage on a parent’s health plan ends (Affordable Care Act) |
| 30 | 2034 | Will turn 30 |
| 35 | 2039 | Will turn 35. Old enough to be President of the United States |
| 40 | 2044 | Will turn 40 |
| 50 | 2054 | Will turn 50 |
| 62 | 2066 | Will turn 62. Earliest age to claim (reduced) Social Security benefits |
| 65 | 2069 | Will turn 65. Medicare eligibility |
Your age by year
Age reached on your birthday in each year:
| Year | Age on birthday |
|---|---|
| 2021 | 17 |
| 2022 | 18 |
| 2023 | 19 |
| 2024 | 20 |
| 2025 | 21 |
| 2026 | 22 |
| 2027 | 23 |
| 2028 | 24 |
| 2029 | 25 |
| 2030 | 26 |
| 2031 | 27 |
Frequently asked questions
If I was born in 2004, how old will I be in 2036?
You will turn 32 on your birthday in 2036.
How old was someone born in 2004 in 2000?
They were not born yet.
Is 2004 a leap year?
Yes. 2004 had a February 29, so people born on that date celebrate on February 28 or March 1 in other years.
Other birth years: 2001 · 2002 · 2003 · 2005 · 2006 · 2007 · all years