Schenectady County, NY population age distribution
A complete breakdown of Schenectady County'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 | 9,271 | 5.89% |
5 to 9 years | 9,750 | 6.19% |
10 to 14 years | 9,360 | 5.94% |
15 to 19 years | 9,738 | 6.18% |
20 to 24 years | 10,162 | 6.45% |
25 to 29 years | 10,176 | 6.46% |
30 to 34 years | 10,408 | 6.61% |
35 to 39 years | 10,144 | 6.44% |
40 to 44 years | 9,612 | 6.1% |
45 to 49 years | 9,542 | 6.06% |
50 to 54 years | 10,578 | 6.72% |
55 to 59 years | 10,477 | 6.65% |
60 to 64 years | 11,351 | 7.21% |
65 to 69 years | 8,443 | 5.36% |
70 to 74 years | 7,117 | 4.52% |
75 to 79 years | 4,569 | 2.9% |
80 to 84 years | 3,110 | 1.97% |
85 years and over | 3,707 | 2.35% |
TABLE OF CONTENTS
Schenectady County, NY population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

The largest age group in Schenectady County, NY was for the group of age 60-64 years with a population of 11,351 (7.21%), according to the 2021 American Community Survey.
At the same time, the smallest age group in Schenectady County, NY was the 80-84 years with a population of 3,110 (1.97%).
Schenectady County, NY population by age cohort
To better understand the age distribution of Schenectady County, NY'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 | 34,331 | 21.8% |
18 to 64 years | 96,238 | 61.1% |
85 years and over | 26,946 | 17.11% |
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Schenectady County's population under 18 was 21.80%, compared to the 22.51% nationwide.
- Schenectady County's working population (between 18 and 64) was 61.10%, compared to 61.45% nationwide.
- Schenectady County's elderly or the senior population (over 65 age) was 17.11% as compared to 16.04% nationwide.
Schenectady County, NY population pyramid
Population pyramid for Schenectady County, NY 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 Schenectady County's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Schenectady County, NY, is 27.8.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Schenectady County, NY, is 26.4.
- Total dependency ratio for Schenectady County, NY is 54.1.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Schenectady County, NY is 3.8.

Here's the Schenectady County, NY's male and female population across different age groups:
Age Group | Population(Male) | Population(Female) | Total Population |
---|---|---|---|
Under 5 years | 4,829 | 4,442 | 9,271 |
5 to 9 years | 4,914 | 4,836 | 9,750 |
10 to 14 years | 4,912 | 4,448 | 9,360 |
15 to 19 years | 5,101 | 4,637 | 9,738 |
20 to 24 years | 4,990 | 5,172 | 10,162 |
25 to 29 years | 5,101 | 5,075 | 10,176 |
30 to 34 years | 5,213 | 5,195 | 10,408 |
35 to 39 years | 4,957 | 5,187 | 10,144 |
40 to 44 years | 4,886 | 4,726 | 9,612 |
45 to 49 years | 4,728 | 4,814 | 9,542 |
50 to 54 years | 5,156 | 5,422 | 10,578 |
55 to 59 years | 5,050 | 5,427 | 10,477 |
60 to 64 years | 5,558 | 5,793 | 11,351 |
65 to 69 years | 4,022 | 4,421 | 8,443 |
70 to 74 years | 3,366 | 3,751 | 7,117 |
75 to 79 years | 2,072 | 2,497 | 4,569 |
80 to 84 years | 1,290 | 1,820 | 3,110 |
85 years and over | 1,068 | 2,639 | 3,707 |
Things to know
What is the population of Schenectady County, NY under 18?
Schenectady County's population under the age of 18 is 34,331, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 21.80% of the total resident population of Schenectady County, NY.
What is the aging population in Schenectady County, NY?
Schenectady County's population aged 65 years and above was 26,946. As per the U.S. Census Bureau's American Community Survey, this population is 17.11% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates