Citi Field opened in 2009, so as of 2026 it is 17 years old.

Quick Scoop: How old is Citi Field?

  • Opened: March 29, 2009 (first game was a college matchup: St. John’s vs. Georgetown).
  • First Mets game (exhibition): April 3, 2009 vs. the Boston Red Sox.
  • First official MLB regular-season game: April 13, 2009 vs. the San Diego Padres.

Since it opened in 2009 and it’s now 2026, Citi Field is 17 years old (counting from its opening year, not to the exact day).

Tiny timeline

  1. 2006 – Construction gets underway in the Shea Stadium parking lot.
  1. March 29, 2009 – Stadium opens its doors for that first college game.
  1. April 13, 2009 – Mets play their first regular-season home game there.
  1. 2013 – Citi Field hosts the MLB All-Star Game.

Citi Field is still a relatively young ballpark compared to classics like Fenway Park or Wrigley Field, but it already has more than a decade and a half of Mets history baked in.

TL;DR: How old is Citi Field? Opened in 2009, it’s 17 years old in 2026.

Information gathered from public forums or data available on the internet and portrayed here.