Highest level ?

The best level 33 here. Haha. I know some level 38's

I am 34, but not too hardcore, I play 1-2 hours per day on my spare time and most of it is to make my gym run on my way to work.

Normally I only go for "hunting" on weekends and free days.

I saw someone level 40 at gyms.

Just saw a Valorer at level 39 yesterday with a Dragonite ~3479 (or 3497)CP on top of a lvl 10 gym. So we took him down to help him power up his Dragonite more :))
Btw, I'm lvl 33; my brother in law's lvl 36

level 33 with about 150k xp to 34

33,5.....but havent been active since the winter in my area....feeling kind of stuck.
Without winter i would be 35 at least, maybe even 36.

level 38 with multiple Dragonites over 3500CP, I've got 9 that are 3400+ CP