How many people live in South Central Connecticut Planning Region, CT?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 576,700 people living in South Central Connecticut Planning Region, CT. That makes South Central Connecticut Planning Region the third-most populous planning region in Connecticut. It is home to 15.6% of people living in the state.
577K
population of South Central Connecticut Planning Region, CT (2024)
15.6%
County share of the Connecticut population (2024)
About 576,700 people lived in South Central Connecticut Planning Region, CT in 2024.
Population estimates, 2020–2024
What are South Central Connecticut Planning Region, CT’s age demographics?
About 112,600 South Central Connecticut Planning Region, CT residents are aged 65 and older in 2024. That represents 19.5% of its population. For comparison, the age group represents 19.5% of Connecticut’s population and 18% in the US overall.
Another 110,600 South Central Connecticut Planning Region residents, or 19.2% of the population, were children under 18. For comparison, the age group represents 19.8% of Connecticut’s population and 21.6% in the US overall.
A lower share of South Central Connecticut Planning Region, CT's population is aged under 18 than the US as a whole.
Population estimates by age group, (2024)
What are South Central Connecticut Planning Region, CT’s racial and ethnic demographics?
Non-Hispanic white residents make up 58.1% of the South Central Connecticut Planning Region population, higher than the national share of 57.5%. South Central Connecticut Planning Region also has a larger share of people identifying as Hispanic (20.5%) than the US overall (20%).
In contrast, South Central Connecticut Planning Region’s non-Hispanic Asian population accounts for 5.1%, below the 6.5% nationwide, and the non-Hispanic American Indian and Alaska Native population makes up 0.18% of the region, compared with 0.72% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
South Central Connecticut Planning Region, CT has a higher share of a non-Hispanic Black or African American population than Connecticut as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in South Central Connecticut Planning Region, CT is New Haven with about 137,600 residents in 2024.
Cities and towns in South Central Connecticut Planning Region, CT ranked by population
Population (2024), includes only portions within planning region
| City or town | Population | |
|---|---|---|
| 1. | New Haven | 137,562 |
| 2. | Hamden | 61,510 |
| 3. | Meriden | 60,849 |
| 4. | West Haven | 55,379 |
| 5. | Milford | 51,004 |
| 6. | Wallingford | 44,389 |
| 7. | Branford | 28,448 |
| 8. | East Haven | 27,953 |
| 9. | North Haven | 24,844 |
| 10. | Guilford | 22,264 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
