How many people live in Western Connecticut Planning Region, CT?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 637,000 people living in Western Connecticut Planning Region, CT. That makes Western Connecticut Planning Region the second-most populous planning region in Connecticut. It is home to 17.3% of people living in the state.
637K
population of Western Connecticut Planning Region, CT (2024)
17.3%
County share of the Connecticut population (2024)
About 637,000 people lived in Western Connecticut Planning Region, CT in 2024.
Population estimates, 2020–2024
What are Western Connecticut Planning Region, CT’s age demographics?
About 116,700 Western Connecticut Planning Region, CT residents are aged 65 and older in 2024. That represents 18.3% of its population. For comparison, the age group represents 19.5% of Connecticut’s population and 18% in the US overall.
Another 136,700 Western Connecticut Planning Region, CT residents, or 21.5% 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 higher share of Western Connecticut Planning Region, CT's population is aged 45–64 than the US as a whole.
Population estimates by age group, (2024)
What are Western Connecticut Planning Region, CT’s racial and ethnic demographics?
Non-Hispanic white residents make up 59.9% of the Western Connecticut Planning Region population, higher than the national share of 57.5%. Western Connecticut Planning Region also has a larger share of people identifying as Hispanic (21.8%) than the US overall (20%).
In contrast, Western Connecticut Planning Region’s non-Hispanic Black or African American population accounts for 10.2%, below the 12.6% nationwide, and the non-Hispanic two or more races population makes up 1.7% of the region, compared with 2.5% 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.
Western Connecticut Planning Region, CT has a higher share of a Hispanic population than Connecticut as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Western Connecticut Planning Region, CT is Stamford with about 139,100 residents in 2024.
Cities and towns in Western Connecticut Planning Region, CT ranked by population
Population (2024), includes only portions within planning region
| City or town | Population | |
|---|---|---|
| 1. | Stamford | 139,134 |
| 2. | Norwalk | 93,661 |
| 3. | Danbury | 88,692 |
| 4. | Greenwich | 64,594 |
| 5. | New Milford | 28,745 |
| 6. | Westport | 27,996 |
| 7. | Ridgefield | 25,300 |
| 8. | Darien | 22,528 |
| 9. | Bethel | 21,490 |
| 10. | New Canaan | 21,160 |
Keep exploring
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.
