When The Harris Poll asked the same question 10 years ago, the answer was 41.
The answer for respondents depends on how old they are currently, as younger people said they wanted to be older, while older generations said they were happy with where they are.
Those ages 18 to 36 said the perfect age is 38, those ages 37 to 48 said the perfect age is 49, and those 49 to 67 said they are happy in the mid-fifties.
Those older than 68 said 67 is perfect.
Republicans and Democrats both said that their perfect age is 53, but Independents chose 46.
Respondents also chose the perfect age for life events — graduating college at 22, getting married at 26, having a first child at 28 and retiring at 61.
Celebrity Families of 2014 [PHOTOS]