I was 29 and my wife was 28 (we live in the south).
The average age is going up, but don't let that guide you, people are leaving it too late.
Older women are more likely to experience fertility problems and the child is more likely to have health problems with an older mother. For example the risk of down syndrome increases significantly by the age of 40.The same applies for any kind of genetic disorder.
So you do what many of older men have done on here. Have a kid with a women who is 15 to 20 years younger than you.
It's about the age of them not you