Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Pop. | 2020 Pop. | Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| New Haven | 1 | 137,173 | 129,757 | 1.37% | 7,339 | 18.7 | City |
| Meriden | 2 | 59,942 | 60,617 | -0.28% | 2,526 | 23.7 | City |
| Hamden | 3 | 59,748 | 60,332 | -0.44% | 1,831 | 32.6 | Township |
| West Haven | 4 | 54,596 | 55,370 | -0.35% | 5,079 | 10.8 | City |
| Milford | 5 | 50,417 | 50,433 | -0.01% | 2,302 | 21.9 | Township |
| Wallingford | 6 | 43,587 | 44,222 | -0.32% | 1,113 | 39.2 | Township |
| Branford | 7 | 27,973 | 28,124 | -0.21% | 1,281 | 21.8 | Township |
| East Haven | 8 | 27,423 | 27,794 | -0.4% | 2,230 | 12.3 | Township |
| North Haven | 9 | 24,522 | 24,161 | 0.93% | 1,177 | 20.8 | Township |
| Guilford | 10 | 22,020 | 22,018 | 0% | 468 | 47.1 | Township |
| Madison | 11 | 17,444 | 17,620 | -0.31% | 483 | 36.1 | Township |
| Orange | 12 | 14,398 | 14,231 | 0.53% | 838 | 17.2 | Township |
| North Branford | 13 | 13,368 | 13,506 | -0.35% | 540 | 24.8 | Township |
| Woodbridge | 14 | 8,992 | 9,055 | -0.32% | 478 | 18.8 | Township |
| Bethany | 15 | 5,265 | 5,282 | -0.11% | 250 | 21.1 | Township |
| 16 |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
New Haven is the largest city in South Central CT Planning Region.
undefined is the smallest city in South Central CT Planning Region.
There are 16 cities in South Central CT Planning Region, Connecticut.