Age Group Comparisons What does this indicator measure? This indicator measures the 2011 population by age group in similar, upstate cities. The population is broken into age groups as follows–under 5, under 18, 18-64, and 65 and older. Unavailable – Percent of Population by Age Category, Syracuse Unavailable – Percent of Population by Age Category, Buffalo Unavailable – AGE: 20 to 24 years – Rochester city, New York – Total – Estimate – Actual Measurement – AGE AND SEX – American Community Survey 5-Year Estimates Unavailable – AGE: 20 to 24 years – Albany city, New York – Total – Estimate – Actual Measurement – AGE AND SEX – American Community Survey 5-Year Estimates