| population | |
| Fairfield County | 916829 |
| Hartford County | 899498 |
| Litchfield County | 185186 |
| population | |
| Middlesex County | 164245 |
| New Haven County | 862477 |
| New London County | 274055 |
| population | |
| Tolland County | 149788 |
| Windham County | 116418 |
 | Hartford Brainard Airport | ~ 7.87 km |
| Rentschler Heliport | ~ 10.02 km |
| Bradley International Airport | ~ 30.24 km |
| Waterbury Oxford Airport | ~ 44.26 km |
| Tweed New Haven Airport | ~ 48.46 km |
| Westfield-Barnes Regional Airport | ~ 54.72 km |
| Westover Metropolitan Airport / Westover Air Reserve Base | ~ 59.60 km |
| Groton New London Airport | ~ 63.89 km |
| Igor I Sikorsky Memorial Airport | ~ 67.86 km |
