Overview
          8,280
                  Total Population
                47.9
                  Median age
                48.74%
                  Female population %
                105.2:100
                  Gender ratio (M:F)
                50-54 years
                  Largest age group
                57.1
                  Total dependency ratio
                White
                  Largest racial group
                5
                  Hispanic population
                Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Allegheny township's population is old compared to the rest of the country:
- The median age in Allegheny township is 47.9, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
 - Allegheny township's population under 18 was 21.44%, compared to the 22.51% nationwide.
 - Allegheny township's elderly or the senior population (over 65 age) was 21.10% as compared to 16.04% nationwide.
 - Of the total population in Allegheny township, 15.23% were under the age of 15, 17.21% aged 15 to 29, 46.46% aged 30 to 64, 19.03% aged 65 to 84, and 2.07% were 85 years of age and older.
 
Read more about Allegheny township, Westmoreland County, Pennsylvania population by age ➔
Gender
There are 208 less females than males in Allegheny township:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 48.74% females and 51.26% males in Allegheny township, Westmoreland County, Pennsylvania.
 - The Allegheny township, Westmoreland County, Pennsylvania gender ratio is 105.2:100 i.e. 105.2 men to 100 women (1.052).
 - For male population, the largest age group is 50-54 years with a population of 624.
 - For the female population, the largest age group is 60-64 years with a population of 456.
 
Read more about Allegheny township, Westmoreland County, Pennsylvania population by gender ➔
Race / Ethnicity
Allegheny township's population has become increasingly diverse:
- Racial distribution of Allegheny township population: 97.25% are White, 0.69% are Black or African American, 0.08% are Asian, 0.29% are some other race and 1.69% are multiracial.
 - Allegheny township's racial breakdown clearly shows that there is an absolute majority of White population in the township.
 - By ethnicity, 5 is Hispanic or Latino (of any race), and 8,23 (99.40% of the total population) is Non-Hispanic.
 - The largest racial group in Allegheny township is White with a population of 8,052 (97.25% of the total population).
 
Read more about Allegheny township, Westmoreland County, Pennsylvania population by race ➔
Year by year
Allegheny township's population has already reached its peak and is showing a trend of decline:
- The peak population was 8,310 in the year 2020
 - From 2000 to 2010, Allegheny township's population increased by 167 (2.08%), as compared to the national growth of 9.63%.
 - From 2010 to 2020, Allegheny township's population increased by 124 (1.51%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
 - Between the year 2000 and 2022, Allegheny township's population was lowest in year 2002 at 7,985.
 
Read more about Allegheny township, Westmoreland County, Pennsylvania population by year ➔
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates
 - U.S. Census Bureau Population Estimates Population Estimates Program (PEP)