Connecticut population age distributions
A complete breakdown of Connecticut'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 | 181,240 | 5.04% |
| 5 to 9 years | 195,390 | 5.43% |
| 10 to 14 years | 217,297 | 6.04% |
| 15 to 19 years | 238,145 | 6.62% |
| 20 to 24 years | 233,423 | 6.49% |
| 25 to 29 years | 222,628 | 6.19% |
| 30 to 34 years | 227,143 | 6.31% |
| 35 to 39 years | 229,047 | 6.37% |
| 40 to 44 years | 222,414 | 6.18% |
| 45 to 49 years | 216,632 | 6.02% |
| 50 to 54 years | 245,911 | 6.83% |
| 55 to 59 years | 260,758 | 7.25% |
| 60 to 64 years | 257,548 | 7.16% |
| 65 to 69 years | 208,754 | 5.8% |
| 70 to 74 years | 167,269 | 4.65% |
| 75 to 79 years | 113,222 | 3.15% |
| 80 to 84 years | 74,156 | 2.06% |
| 85 years and over | 87,371 | 2.43% |
TABLE OF CONTENTS
Connecticut population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2019-2023
FIGURE 1
Connecticut population by age group.
The largest age group is 55 to 59 years with a population of 260,758 (7.25% of the total population).
The largest age group in Connecticut was for the group of age 55 to 59 years with a population of 260,758 (7.25%), according to the 2019-2023 American Community Survey.
At the same time, the smallest age group in Connecticut was the 80 to 84 years with a population of 74,156 (2.06%).
Connecticut population by age cohort
To better understand the age distribution of Connecticut'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
Connecticut population by age cohort
The largest age group was 18 to 64 years with a population of 2.21 million (61.52% of the total population).
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Connecticut 's population under 18 was 20.40%, compared to the 22.16% nationwide.
- Connecticut's working population (between 18 and 64) was 61.52%, compared to 61% nationwide.
- Connecticut's elderly or the senior population (over 65 age) was 18.09% as compared to 16.84% nationwide.
Connecticut population pyramid
Population pyramid for Connecticut 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 Connecticut's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Connecticut, is 25.2.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Connecticut, is 27.6.
- Total dependency ratio for Connecticut is 52.9.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Connecticut is 3.6.
FIGURE 3
Connecticut population pyramid
Connecticut population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.
Connecticut population pyramid
Here's the Connecticut's male and female population across different age groups .
| Age Group | Population(Male) | Population(Female) | Total Population |
|---|---|---|---|
| Under 5 years | 92,968 | 88,272 | 181,240 |
| 5 to 9 years | 98,690 | 96,700 | 195,390 |
| 10 to 14 years | 111,538 | 105,759 | 217,297 |
| 15 to 19 years | 121,308 | 116,837 | 238,145 |
| 20 to 24 years | 119,697 | 113,726 | 233,423 |
| 25 to 29 years | 113,992 | 108,636 | 222,628 |
| 30 to 34 years | 114,219 | 112,924 | 227,143 |
| 35 to 39 years | 114,249 | 114,798 | 229,047 |
| 40 to 44 years | 109,923 | 112,491 | 222,414 |
| 45 to 49 years | 105,821 | 110,811 | 216,632 |
| 50 to 54 years | 120,200 | 125,711 | 245,911 |
| 55 to 59 years | 126,271 | 134,487 | 260,758 |
| 60 to 64 years | 126,340 | 131,208 | 257,548 |
| 65 to 69 years | 99,541 | 109,213 | 208,754 |
| 70 to 74 years | 77,643 | 89,626 | 167,269 |
| 75 to 79 years | 50,429 | 62,793 | 113,222 |
| 80 to 84 years | 31,979 | 42,177 | 74,156 |
| 85 years and over | 30,309 | 57,062 | 87,371 |
Things to know
What is the population of Connecticut under 18?
Connecticut's population under the age of 18 is 733,998, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 20.40% of the total resident population of Connecticut.
What is the aging population in Connecticut?
Connecticut's population aged 65 years and above was 650,772. As per the U.S. Census Bureau's American Community Survey, this population is 18.09% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates
