| Rank | City | 1990 Population |
|---|---|---|
| 1 | Bridgeport | 141,555 |
| 2 | Hartford | 137,289 |
| 3 | New Haven | 130,191 |
| 4 | Waterbury | 108,213 |
| 5 | Stamford | 108,107 |
| 6 | Norwalk | 78,335 |
| 7 | New Britain | 75,481 |
| 8 | Danbury | 65,584 |
| 9 | Bristol | 60,618 |
| 10 | Meriden | 59,440 |
| 11 | West Haven | 54,299 |
| 12 | Milford | 48,139 |
| 13 | Middletown | 42,774 |
| 14 | Norwich | 37,777 |
| 15 | Shelton | 35,394 |
| 16 | Torrington | 33,724 |
| 17 | Naugatuck | 30,621 |
| 18 | New London | 28,566 |
| 19 | Ansonia | 18,431 |
| 20 | Derby | 12,219 |
| 21 | Groton | 9,946 |
| 22 | Danielson | 3,934 |
| 23 | Jewett City | 3,302 |
| 24 | Woodmont | 1,781 |
| 25 | Newtown | 1,677 |
| 26 | Litchfield | 1,396 |
| 27 | Stonington | 1,161 |
| 28 | Bantam | 775 |
| 29 | Groton Long Point | 625 |
| 30 | Fenwick | 89 |
In 1990, the largest city in Connecticut was Bridgeport, with a population of 141,555. The second largest city is Hartford, with a population of 137,289.
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