So how old is the average minor leaguer? You often see us refer to a player as young for his league or old for the circuit. But to be more precise, here is a look at the median age of every full season minor league. We used median instead of average to better reflect what is the true midpoint of the league's players, as a few 35 year-olds could start to skew an average age.

The rosters were as of the first week of the season. And the median age of a league logically can be expected to skew older than the average significant prospect in a league as role players and other less-heralded prospects are more likely to be repeating a league or otherwise pushed slowly up the ladder.