: A significant portion of the song provides a "status update" on the friends he grew up with, acknowledging their different paths—some successful, others struggling with addiction or personal loss.
: "Fifteen years old and smoking hand-rolled cigarettes / Running from the law through the backfields and getting drunk with my friends". Ed Sheeran - Castle On The Hill
: The titular "castle on the hill" refers to the real Framlingham Castle in Suffolk, a site Sheeran would see while growing up and where he eventually performed in 2017. : A significant portion of the song provides
: "I'm on my way / Driving at 90 down those country lanes / Singing to 'Tiny Dancer'". : "I'm on my way / Driving at
: The lyrics detail Sheeran's upbringing, covering memories from age six—when he broke his leg running from his brother—to his teenage years involving weekend jobs and drinking with friends.