U.S. state profile · CT
Connecticut: area, population and density
Connecticut has 4,843 sq mi of land and a 2025 population estimate of 3,688,496; calculated population density is 294 people/km².
Sources: U.S. Census Bureau Gazetteer Files · 2026 · U.S. Census Bureau Population Estimates Program · 2025.
Connecticut ranks 48th of 51 by land area, 29th by population and 5th by calculated population density among the U.S. states and DC. Density uses the displayed population divided by land area converted to square kilometres.
- Land area
- 4,843 sq miU.S. Census Bureau Gazetteer Files · 2026
- Population
- 3,688,496U.S. Census Bureau Population Estimates Program · 2025
- Calculated density
- 294 people/km²Population ÷ land area in km²
Reading the figures
Connecticut in the U.S. comparison set
Connecticut has 4,843 sq mi of land area and a population estimate of 3,688,496 for 2025. In the 51-place state and DC set, it is 48th by land area, 29th by population, and 5th by calculated density.
Density is not a separately reported value here. It is calculated from the population and land area above, converted to square kilometres, so the result can be compared with supported country figures.
U.S. boundary outline: Census TIGER/Line 2025. The drawing is fitted to this profile panel; use a comparison page for a shared-area scale.