My dd is doing 5 then state's/regionals/nationals. My ds is doing 7 then state's/regs/nats (if they qualify) too many if you ask me, but I'm the jaded mom with a boy and girl that compete in the same season :/ I'm happy in Jan when season starts and ready for valium come March, lol.
I'm in Canada. Our kids do four qualifying meets between Dec and May, they take their top two AA scores from those meets and top 40 in each age and level go to provincial championships.
Our club does one extra fun meet at the end of qualifying season where some girls compete up in their next level to try it out.
So 6 in total if they qualify. We only have one season and there's little travel involved.
In artistic we've had between 2 (a season when most of our scheduled meets were canceled) and 6 plus states (and regionals for xcel). In t&t we've had between 4 and 6, plus states and regionals.
We have a lot. I think the season in NY is much longer than most. Last year we had eight and this year it's ten. (But I think it will "only" be nine because the one we are scheduled for in 2 weeks has their rotation sheets out and we're not on it.