Upper Darby Township, Pennsylvania population age distribution
A complete breakdown of Upper Darby township's age demographics from 0 to 85 years, distributed across 18 age groups is listed in the table below.
Age Group | Population | % of Total Population |
---|---|---|
Under 5 years | 5,675 | 6.68% |
5 to 9 years | 5,386 | 6.34% |
10 to 14 years | 5,270 | 6.2% |
15 to 19 years | 4,774 | 5.62% |
20 to 24 years | 5,848 | 6.88% |
25 to 29 years | 7,629 | 8.98% |
30 to 34 years | 6,938 | 8.16% |
35 to 39 years | 6,621 | 7.79% |
40 to 44 years | 5,339 | 6.28% |
45 to 49 years | 5,319 | 6.26% |
50 to 54 years | 5,386 | 6.34% |
55 to 59 years | 5,930 | 6.98% |
60 to 64 years | 4,386 | 5.16% |
65 to 69 years | 4,265 | 5.02% |
70 to 74 years | 2,551 | 3% |
75 to 79 years | 1,687 | 1.99% |
80 to 84 years | 954 | 1.12% |
85 years and over | 1,028 | 1.21% |
TABLE OF CONTENTS
Upper Darby Township, Pennsylvania population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

The largest age group in Upper Darby Township, Pennsylvania was for the group of age 25-29 years with a population of 7,629 (8.98%), according to the 2021 American Community Survey.
At the same time, the smallest age group in Upper Darby Township, Pennsylvania was the 80-84 years with a population of 954 (1.12%).
Upper Darby Township, Pennsylvania population by age cohort
To better understand the age distribution of Upper Darby Township, Pennsylvania's population, we divided it into the following 3 cohorts:
- Children : Under the age of 18 years
- Adults (working population): Between the age of 18 and 64 years
- Seniors: 65 years and above

Here's the population for each of the three cohorts.
Age Group | Population | % of Total Population |
---|---|---|
Under 18 years | 19,471 | 22.91% |
18 to 64 years | 55,030 | 64.75% |
85 years and over | 10,485 | 12.34% |
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Upper Darby township's population under 18 was 22.91%, compared to the 22.51% nationwide.
- Upper Darby township's working population (between 18 and 64) was 64.75%, compared to 61.45% nationwide.
- Upper Darby township's elderly or the senior population (over 65 age) was 12.34% as compared to 16.04% nationwide.
Upper Darby Township, Pennsylvania population pyramid
Population pyramid for Upper Darby Township, Pennsylvania is charted below using the estimates from U.S. Census Bureau's American Community Survey 5-Year estimates. A wide base suggests population increase, narrow base indicates declining birth rates.
Key stats from our analysis of the Upper Darby township's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Upper Darby Township, Pennsylvania, is 28.1.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Upper Darby Township, Pennsylvania, is 18.0.
- Total dependency ratio for Upper Darby Township, Pennsylvania is 46.1.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Upper Darby Township, Pennsylvania is 5.5.

Here's the Upper Darby Township, Pennsylvania's male and female population across different age groups:
Age Group | Population(Male) | Population(Female) | Total Population |
---|---|---|---|
Under 5 years | 2,978 | 2,697 | 5,675 |
5 to 9 years | 2,544 | 2,842 | 5,386 |
10 to 14 years | 2,614 | 2,656 | 5,270 |
15 to 19 years | 2,325 | 2,449 | 4,774 |
20 to 24 years | 3,050 | 2,798 | 5,848 |
25 to 29 years | 3,531 | 4,098 | 7,629 |
30 to 34 years | 3,439 | 3,499 | 6,938 |
35 to 39 years | 3,357 | 3,264 | 6,621 |
40 to 44 years | 2,649 | 2,690 | 5,339 |
45 to 49 years | 2,558 | 2,761 | 5,319 |
50 to 54 years | 2,731 | 2,655 | 5,386 |
55 to 59 years | 2,861 | 3,069 | 5,930 |
60 to 64 years | 2,023 | 2,363 | 4,386 |
65 to 69 years | 2,001 | 2,264 | 4,265 |
70 to 74 years | 1,081 | 1,470 | 2,551 |
75 to 79 years | 575 | 1,112 | 1,687 |
80 to 84 years | 380 | 574 | 954 |
85 years and over | 304 | 724 | 1,028 |
Things to know
What is the population of Upper Darby Township, Pennsylvania under 18?
Upper Darby township's population under the age of 18 is 19,471, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 22.91% of the total resident population of Upper Darby Township, Pennsylvania.
What is the aging population in Upper Darby Township, Pennsylvania?
Upper Darby township's population aged 65 years and above was 10,485. As per the U.S. Census Bureau's American Community Survey, this population is 12.34% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates