Monmouth County, NJ population age distributions
A complete breakdown of Monmouth 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 | 31,343 | 4.87% |
| 5 to 9 years | 36,277 | 5.64% |
| 10 to 14 years | 39,667 | 6.17% |
| 15 to 19 years | 42,639 | 6.63% |
| 20 to 24 years | 38,953 | 6.06% |
| 25 to 29 years | 35,639 | 5.54% |
| 30 to 34 years | 34,162 | 5.31% |
| 35 to 39 years | 37,835 | 5.88% |
| 40 to 44 years | 36,958 | 5.75% |
| 45 to 49 years | 41,947 | 6.52% |
| 50 to 54 years | 48,309 | 7.51% |
| 55 to 59 years | 51,661 | 8.03% |
| 60 to 64 years | 50,158 | 7.8% |
| 65 to 69 years | 38,122 | 5.93% |
| 70 to 74 years | 30,820 | 4.79% |
| 75 to 79 years | 21,346 | 3.32% |
| 80 to 84 years | 12,134 | 1.89% |
| 85 years and over | 15,094 | 2.35% |
TABLE OF CONTENTS
Monmouth County, NJ population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2018-2022
FIGURE 1
Monmouth County, NJ population by age group.
The largest age group is 55 to 59 years with a population of 51,661 (8.03% of the total population).
The largest age group in Monmouth County, NJ was for the group of age 55 to 59 years with a population of 51,661 (8.03%), according to the 2018-2022 American Community Survey.
At the same time, the smallest age group in Monmouth County, NJ was the 80 to 84 years with a population of 12,134 (1.89%).
Monmouth County, NJ population by age cohort
To better understand the age distribution of Monmouth 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
Monmouth County, NJ population by age cohort
The largest age group was 18 to 64 years with a population of 391,556 (60.89% of the total population).
Monmouth County, NJ population by age cohort
Here's the population for each of the three cohorts.
| Age Group | Population | % of Total Population |
|---|---|---|
| Under 18 years | 133,992 | 20.84% |
| 18 to 64 years | 391,556 | 60.89% |
| 65 years and over | 117,516 | 18.27% |
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Monmouth County 's population under 18 was 20.84%, compared to the 22.11% nationwide.
- Monmouth County's working population (between 18 and 64) was 60.89%, compared to 61.36% nationwide.
- Monmouth County's elderly or the senior population (over 65 age) was 18.27% as compared to 16.53% nationwide.
Monmouth County, NJ population pyramid
Population pyramid for Monmouth 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 Monmouth County's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Monmouth County, NJ, is 25.7.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Monmouth County, NJ, is 28.1.
- Total dependency ratio for Monmouth County, NJ is 53.7.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Monmouth County, NJ is 3.6.
FIGURE 3
Monmouth County, NJ population pyramid
Monmouth County population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.
Monmouth County, NJ population pyramid
Here's the Monmouth County, NJ's male and female population across different age groups .
| Age Group | Population(Male) | Population(Female) | Total Population |
|---|---|---|---|
| Under 5 years | 15,896 | 15,447 | 31,343 |
| 5 to 9 years | 18,114 | 18,163 | 36,277 |
| 10 to 14 years | 20,674 | 18,993 | 39,667 |
| 15 to 19 years | 21,842 | 20,797 | 42,639 |
| 20 to 24 years | 19,934 | 19,019 | 38,953 |
| 25 to 29 years | 18,280 | 17,359 | 35,639 |
| 30 to 34 years | 17,270 | 16,892 | 34,162 |
| 35 to 39 years | 19,102 | 18,733 | 37,835 |
| 40 to 44 years | 17,980 | 18,978 | 36,958 |
| 45 to 49 years | 20,741 | 21,206 | 41,947 |
| 50 to 54 years | 23,735 | 24,574 | 48,309 |
| 55 to 59 years | 25,216 | 26,445 | 51,661 |
| 60 to 64 years | 24,889 | 25,269 | 50,158 |
| 65 to 69 years | 18,466 | 19,656 | 38,122 |
| 70 to 74 years | 14,249 | 16,571 | 30,820 |
| 75 to 79 years | 9,272 | 12,074 | 21,346 |
| 80 to 84 years | 4,983 | 7,151 | 12,134 |
| 85 years and over | 5,099 | 9,995 | 15,094 |
Things to know
What is the population of Monmouth County, NJ under 18?
Monmouth County's population under the age of 18 is 133,992, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 20.84% of the total resident population of Monmouth County, NJ.
What is the aging population in Monmouth County, NJ?
Monmouth County's population aged 65 years and above was 117,516. As per the U.S. Census Bureau's American Community Survey, this population is 18.27% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates