Southeastern Connecticut Planning Region, Connecticut
Southeastern Connecticut Planning Region, Connecticut
- Census data · ACS 2019-2023
- 282,602 (2024 estimate)Population
- 114,577Households
- $84,185Median household income
- $293,900Median home value
- 39Towns with a page
Southeastern Connecticut Planning Region in numbersOfficial sources, refreshed yearly
Median household income $84,185 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.
Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, county level, state 09, retrieved November 14, 2026.
- Owner occupied
- 74,923 units
- Renter occupied
- 39,654 units
- Vacancy rate
- 8.9%
Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.
Source: American Community Survey 5-year data profile 2019–2023, county level, state 09, retrieved November 14, 2026.
100,654 employees in 5,883 establishments with payroll in 2023, all sectors; employers themselves are not named in the source. County Business Patterns counts are published with noise.
Source: County Business Patterns 2023: employment by sector, county level, state 09, retrieved November 14, 2026.
| Measure | Southeastern Connecticut Planning Region | Connecticut |
|---|---|---|
| Population | 279,025 | 3,598,348 |
| Median household income | $84,185 | $93,760 |
| Median age | 41.0 | 41.2 |
| Median home value | $293,900 | $343,200 |
| Bachelor’s degree or higher | 34.6% | 41.9% |
| Foreign-born residents | 8.8% | 15.4% |
| Owner-occupied homes | 65.4% | 66.2% |
| Mean commute to work | 24.1 minutes | 26.6 minutes |
Source: American Community Survey 5-year data profile 2019–2023, county level, state 09, retrieved November 14, 2026.
Townships, towns and villages in Southeastern Connecticut Planning Region39 with a page · sort by any column
| Type | |||
|---|---|---|---|
| Norwich | City | 39,993 | 28.1 sq mi |
| Groton Town | Town | 38,762 | 31.1 sq mi |
| New London | City | 28,081 | 5.61 sq mi |
| Windham Town | Town | 24,105 | 26.8 sq mi |
| Waterford Town | Town | 19,910 | 32.9 sq mi |
| East Lyme Town | Town | 19,004 | 34.0 sq mi |
| Stonington Town | Town | 18,782 | 38.6 sq mi |
| Montville Town | Town | 17,913 | 41.8 sq mi |
| Willimantic | Census designated place | 17,774 | 5.42 sq mi |
| Colchester Town | Town | 15,752 | 48.9 sq mi |
| Ledyard Town | Town | 15,575 | 38.2 sq mi |
| Griswold Town | Town | 11,683 | 34.7 sq mi |
| Groton | City | 10,160 | 3.08 sq mi |
| Conning Towers-Nautilus Park | Census designated place | 8,590 | 5.20 sq mi |
| Lebanon Town | Town | 7,141 | 54.1 sq mi |
| Pawcatuck | Census designated place | 5,475 | 3.41 sq mi |
| North Stonington Town | Town | 5,197 | 54.2 sq mi |
| Preston Town | Town | 4,855 | 30.8 sq mi |
| Colchester | Census designated place | 4,624 | 4.47 sq mi |
| Mystic | Census designated place | 4,441 | 3.65 sq mi |
| Salem Town | Town | 4,326 | 28.9 sq mi |
| Long Hill | Census designated place | 4,292 | 1.54 sq mi |
| Lisbon Town | Town | 4,249 | 16.3 sq mi |
| Waterford | Census designated place | 3,496 | 1.89 sq mi |
| Jewett City | Borough | 3,464 | 0.70 sq mi |
| Niantic | Census designated place | 3,302 | 1.51 sq mi |
| Old Mystic | Census designated place | 3,189 | 4.29 sq mi |
| Sprague Town | Town | 2,948 | 13.2 sq mi |
| Oxoboxo River | Census designated place | 2,912 | 4.26 sq mi |
| Bozrah Town | Town | 2,426 | 20.0 sq mi |
| Franklin Town | Town | 1,900 | 19.7 sq mi |
| Noank | Census designated place | 1,617 | 1.52 sq mi |
| South Windham | Census designated place | 1,391 | 3.12 sq mi |
| Baltic | Census designated place | 1,266 | 1.24 sq mi |
| Poquonock Bridge | Census designated place | 1,108 | 1.34 sq mi |
| Gales Ferry | Census designated place | 1,027 | 0.96 sq mi |
| Stonington | Borough | 1,012 | 0.34 sq mi |
| Groton Long Point | Borough | 520 | 0.43 sq mi |
| Mashantucket | Census designated place | 93 | 2.57 sq mi |
Populations: Census Population Estimates, Vintage 2024: subcounty totals, state 09 (2024). Land areas: Census Gazetteer 2025: counties. A dash means the figure is not in the cited file.
County officialsFrom public records
No county official is published yet. Names appear once a researcher drafts them from the county’s own site and a second person approves; office contacts only, never personal details.
Across Southeastern Connecticut Planning Region
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Neighboring counties
Neighboring counties
- Capitol Planning RegionPopulation 991,508 (2024 estimate)
- Lower Connecticut River Valley Planning RegionPopulation 177,540 (2024 estimate)
- Northeastern Connecticut Planning RegionPopulation 97,701 (2024 estimate)
- Suffolk CountyPopulation 1,535,909 (2024 estimate)
- Washington CountyPopulation 130,333 (2024 estimate)
Sources: Census county adjacency file 2024, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 09, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 36, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 44, retrieved November 14, 2026.