Connecticut Census & Demographic Data - July 1, 2018


Connecticut Census Data

The tables below provide updated data and demographic estimates for Connecticut as of July 1, 2018. Our Connecticut Census Data Comparison Tool allows you to compare and rank CT cities, towns, ZIP Codes and Counties.

Connecticut Data & Demographics (As of July 1, 2018)


Total Population 3,631,470
Population in Households 3,516,799
Population in Familes 2,850,417
Population in Group Qrtrs 114,671
Population Density2 750
Diversity Index3 60


Median Household Income $75,016
Average Household Income $107,314
Per Capita Income $41,571


Total Housing Units 1,519,063 (100%)
Owner Occupied HU 891,107 (58.7%)
Renter Occupied HU 493,741 (32.5%)
Vacant Housing Units 134,215 ( 8.8%)
Median Home Value $287,678
Average Home Value $386,906


Total Households 1,384,848
Average Household Size 2.54
Family Households 910,160
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2018 2018-2023
Population 0.19% 0.16%
Households 0.12% 0.11%
Families 0.02% 0.04%
Median Household Income   2.23%
Per Capita Income   2.79%