Population
578,741
2025
+2.5% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
South Central Connecticut Planning Region, CT: population growth, jobs and income
South Central Connecticut Planning Region gained 1,203 residents between 2024 and 2025 (+0.2%).
South Central Connecticut Planning Region had an estimated 578,741 residents in 2025, up 2.5% (14,292 more people) since 2020. That is slower than Connecticut as a whole (+3.0%), and the 6th fastest growth of 9 counties in Connecticut.
Data as of 2025 · updated
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In the South Central Connecticut Planning Region report
One-time $99 PDF: everything on this page for South Central Connecticut Planning Region, ranked against Connecticut and the U.S., plus these figures that are not on the free page:
- Median gross rent$1,525/mo2020–24
- Vacant homes, incl. seasonal and second homes7.1%2020–24
- New homes permitted, last 12 months9192025-10/2026-09
- Rent growth, 5 yearsIn the report
- Permits in 5+ unit buildingsIn the report
- IRS income moving in (net AGI)In the report
- Neighbouring-county comparison tableIn the report
What's inside: 5 pages
- 1 Summary, headline numbers and ranks (free preview)
- 2 Ranks and the neighbouring-county table
- 3 Migration, with IRS mover and income flows
- 4 Rent, vacant homes, permits and employers
- 5 Every source and the methods
Headline numbers
Net domestic migration
−1,672
2025
−2.9 per 1,000 residents
−2,466 in total, 2021–2025
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. People moving in from other U.S. counties minus people moving out.
Unemployment rate
4.1%
2025
+0.4 pts since 2019
Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics, 2025. Annual average unemployment rate.
New homes permitted
1,020
2025
−28.5% since 2023
1.8 per 1,000 residents
Source: U.S. Census Bureau, Building Permits Survey, 2025. Housing units authorized by building permits in the year.
Median household income
$88,197
2020–24
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–24. American Community Survey 5-year estimate.
Private-sector employment
263,675
2023
Source: U.S. Census Bureau, County Business Patterns, 2023. Paid employees of private employers in mid-March (County Business Patterns).
What the numbers say
Net domestic migration was negative in 2025: 1,672 more people moved out to other U.S. counties than moved in.
Private employers had 263,675 paid employees in mid-March 2023 (County Business Patterns).
Unemployment averaged 4.1% in 2025, 0.4 points higher than in 2019 (before the pandemic).
Builders were authorized to start 1,020 new homes in 2025, or 1.8 per 1,000 residents.
Median household income was $88,197 in the 2020–24 American Community Survey.
Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 1,126th.
Part of the New Haven, CT metro area.
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South Central Connecticut Planning Region population by year
| Year | Population | Change |
|---|---|---|
| 2025 | 578,741 | +1,203 |
| 2024 | 577,538 | +5,172 |
| 2023 | 572,366 | +2,760 |
| 2022 | 569,606 | +586 |
| 2021 | 569,020 | +4,571 |
| 2020 | 564,449 | – |
Census Bureau population estimates, July 1 of each year.
What drove the change in South Central Connecticut Planning Region
South Central Connecticut Planning Region grew by 14,292 people since 2020 even though 2,466 more residents moved to other U.S. counties than came from them: deaths outnumbered births by 219, and net international migration added 17,221.
| Component | 2025 | 2020–25 | Share |
|---|---|---|---|
| Natural changebirths minus deaths | +113 | −219 | |
| International migrationfrom and to other countries | +2,736 | +17,221 | |
| Domestic migrationfrom and to other U.S. counties | −1,672 | −2,466 | |
| Census adjustmentbalancing residual | +26 | −244 | |
| Total change | +1,203 | +14,292 |
Census Bureau population estimates, components of change, each year July 1 to June 30. The components add up to the change in the estimate; the Census adjustment is the small balancing figure the Bureau publishes.
How it ranks
| Measure | In Connecticut | Among U.S. counties |
|---|---|---|
| Population growth | 6th of 9 | 1,126th of 3,107 |
| Net domestic migration per 1,000 residents | 7th of 9 | 2,330th of 3,108 |
| Median household income | 7th of 9 | 345th of 3,107 |
| Lowest unemployment rate | 7th of 9 | 1,630th of 3,108 |
| New homes permitted per 1,000 residents | 5th of 9 | 1,660th of 3,005 |
1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.
Get the county report — $99
The County Growth and Demographics Report for South Central Connecticut Planning Region, CT as a PDF, from federal data: population and migration, housing and rents, permits, private employers and jobs, unemployment, ranks in the state and the country, and neighbouring counties, with a source next to every number. Pay once, no subscription.
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Neighbouring counties
Over 2020–25, South Central Connecticut Planning Region's population change (+2.5%) was ahead of 2 of its 5 neighbouring counties and behind 3.
4 of its 5 neighbouring counties had a higher median household income than South Central Connecticut Planning Region's $88,197 (2020–24).
| County | Population2025 | Population change2020–25 | Net domestic migration per 1,000 residents2025 | Homes permitted per 1,000 residents2025 | Median household income2020–24 |
|---|---|---|---|---|---|
| South Central Connecticut Planning Region, CT This county | 578,741 | +2.5% | −2.9 | 1.8 | $88,197 |
| Naugatuck Valley Planning Region, CT | 463,349 | +3.2% | 0.4 | 1.1 | $86,191 |
| Lower Connecticut River Valley Planning Region, CT | 177,311 | +2.3% | 1.1 | 2.0 | $104,428 |
| Greater Bridgeport Planning Region, CT | 337,697 | +4.1% | −6.1 | 2.2 | $89,667 |
| Suffolk County, NY | 1,546,090 | +1.6% | −2.8 | 0.9 | $130,686 |
| Capitol Planning Region, CT | 994,115 | +3.1% | −0.1 | 1.2 | $93,394 |
Census Bureau population estimates and building permits, American Community Survey 5-year income. Rates per 1,000 residents. – means no figure, or a base too small for a change or rate (it would swing on a few people). A figure from another period shows its year and is left out of the comparison.
Questions
Is South Central Connecticut Planning Region growing?
Yes. Its population grew 2.5% between 2020 and 2025, about 14,292 more people (Census Bureau population estimates). Connecticut as a whole changed +3.0% over the same years. That ranks 6th of 9 counties in Connecticut for population growth.
How many people moved to South Central Connecticut Planning Region?
On net, none in 2025: about 1,672 more people moved out to other U.S. counties than moved in (Census Bureau net domestic migration estimate).
What is the unemployment rate in South Central Connecticut Planning Region?
It averaged 4.1% in 2025 (BLS Local Area Unemployment Statistics, annual average).
What is the population of South Central Connecticut Planning Region?
About 578,741 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.
How many jobs are in South Central Connecticut Planning Region?
Private employers there had 263,675 paid employees in mid-March 2023 (Census Bureau County Business Patterns; government jobs and the self-employed are not counted).
What Beacon CRE covers in Connecticut
Map, parcel and listing layers cover North and South Carolina only for now. This page and the other Connecticut county pages carry the public federal growth figures.
South Central Connecticut Planning Region data alerts
Email me when South Central Connecticut Planning Region gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.
Sources and method
- U.S. Census Bureau, Population Estimates Program (Vintage 2025)
- U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics
- U.S. Census Bureau, Building Permits Survey
- U.S. Census Bureau, American Community Survey 5-year estimates
- U.S. Census Bureau, County Business Patterns
Each number shows its own period. Changes compare the latest period with five years earlier (or the earliest period available). Beacon CRE last refreshed these figures on 2026-11-05. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how we compute every number. More on every layer: data sources and licences.
Jobs outside North and South Carolina use County Business Patterns (paid private-sector employees in mid-March); wages and government jobs are not included.