I don't know what it matters. Are you worried a non-trad label would hurt you, or hoping it would help? Based on presumed age, major, and the increasingly popular gap year, I would say you're more traditional than non-trad.
Average age for matriculation is, what, around 22-24? And you knew enough in advance to take all pre-reqs, so it doesn't sound like you had a late epiphany. More so that you wanted to increase your stats. Unless you completed your degree at 35, you seem traditional.
Again though, I don't know if it matters.