Homefacts City Report. Waynesville is located in Warren County, OH. The population is 2,867, making Waynesville the 7th largest city in Warren County. There are 3 public schools in Waynesville with an average Homefacts rating of A-. The total crime rate for Waynesville is low, and there are 8 registered sex offenders residing in the city.
Middle age begins at around age 35, but doesn't usually become noticeable until about 40, because the signs start as really miniscule things and build up. Someone who is 35 may notice some gray hairs in an otherwise naturally-colored hair, or notice that they start to gain weight more easily.
1 Pubic hair, armpit and leg hair usually begin to grow at about age 9 or 10, and reach adult patterns at about 13 to 14 years.  Menarche (the beginning of menstrual periods) typically occurs about 2 years after early breast and pubic hair appear. It may occur as early as age 9, or as late as age 16.