Somerset County, NJ population age distributions
A complete breakdown of Somerset 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 | 17,145 | 4.95% |
| 5 to 9 years | 20,243 | 5.85% |
| 10 to 14 years | 21,916 | 6.33% |
| 15 to 19 years | 22,561 | 6.52% |
| 20 to 24 years | 19,922 | 5.75% |
| 25 to 29 years | 19,280 | 5.57% |
| 30 to 34 years | 19,767 | 5.71% |
| 35 to 39 years | 22,933 | 6.62% |
| 40 to 44 years | 22,651 | 6.54% |
| 45 to 49 years | 24,225 | 7% |
| 50 to 54 years | 26,386 | 7.62% |
| 55 to 59 years | 27,109 | 7.83% |
| 60 to 64 years | 24,730 | 7.14% |
| 65 to 69 years | 19,441 | 5.62% |
| 70 to 74 years | 13,574 | 3.92% |
| 75 to 79 years | 9,665 | 2.79% |
| 80 to 84 years | 7,029 | 2.03% |
| 85 years and over | 7,626 | 2.2% |
TABLE OF CONTENTS
Somerset County, NJ population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2019-2023
FIGURE 1
Somerset County, NJ population by age group.
The largest age group is 55 to 59 years with a population of 27,109 (7.83% of the total population).
The largest age group in Somerset County, NJ was for the group of age 55 to 59 years with a population of 27,109 (7.83%), according to the 2019-2023 American Community Survey.
At the same time, the smallest age group in Somerset County, NJ was the 80 to 84 years with a population of 7,029 (2.03%).
Somerset County, NJ population by age cohort
To better understand the age distribution of Somerset County, NJ'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
FIGURE 2
Somerset County, NJ population by age cohort
The largest age group was 18 to 64 years with a population of 214,771 (62.04% of the total population).
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Somerset County 's population under 18 was 21.40%, compared to the 22.16% nationwide.
- Somerset County's working population (between 18 and 64) was 62.04%, compared to 61% nationwide.
- Somerset County's elderly or the senior population (over 65 age) was 16.56% as compared to 16.84% nationwide.
Somerset County, NJ population pyramid
Population pyramid for Somerset County, NJ 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 Somerset County's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Somerset County, NJ, is 25.8.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Somerset County, NJ, is 25.0.
- Total dependency ratio for Somerset County, NJ is 50.8.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Somerset County, NJ is 4.0.
FIGURE 3
Somerset County, NJ population pyramid
Somerset County population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.
Somerset County, NJ population pyramid
Here's the Somerset County, NJ's male and female population across different age groups .
| Age Group | Population(Male) | Population(Female) | Total Population |
|---|---|---|---|
| Under 5 years | 8,781 | 8,364 | 17,145 |
| 5 to 9 years | 10,352 | 9,891 | 20,243 |
| 10 to 14 years | 11,309 | 10,607 | 21,916 |
| 15 to 19 years | 11,788 | 10,773 | 22,561 |
| 20 to 24 years | 9,917 | 10,005 | 19,922 |
| 25 to 29 years | 9,738 | 9,542 | 19,280 |
| 30 to 34 years | 9,932 | 9,835 | 19,767 |
| 35 to 39 years | 11,221 | 11,712 | 22,933 |
| 40 to 44 years | 11,299 | 11,352 | 22,651 |
| 45 to 49 years | 12,094 | 12,131 | 24,225 |
| 50 to 54 years | 13,116 | 13,270 | 26,386 |
| 55 to 59 years | 13,560 | 13,549 | 27,109 |
| 60 to 64 years | 12,048 | 12,682 | 24,730 |
| 65 to 69 years | 9,180 | 10,261 | 19,441 |
| 70 to 74 years | 6,557 | 7,017 | 13,574 |
| 75 to 79 years | 4,119 | 5,546 | 9,665 |
| 80 to 84 years | 2,978 | 4,051 | 7,029 |
| 85 years and over | 2,571 | 5,055 | 7,626 |
Things to know
What is the population of Somerset County, NJ under 18?
Somerset County's population under the age of 18 is 74,097, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 21.40% of the total resident population of Somerset County, NJ.
What is the aging population in Somerset County, NJ?
Somerset County's population aged 65 years and above was 57,335. As per the U.S. Census Bureau's American Community Survey, this population is 16.56% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates