Connecticut Census & Demographic Data - July 1, 2017


Connecticut Census Data

The tables below provide updated data and demographic estimates for Connecticut as of July 1, 2017. 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, 2017)


Total Population 3,648,725
Daytime Population: Workers 1,846,646
Daytime Population: Residents 1,770,893
Total Daytime Population (TDP) 3,617,539
Ratio TDP/Total Population1 0.99
Population in Households 3,532,179
Population in Familes 2,850,866
Population in Group Qrtrs 116,546
Population Density2 754
Diversity Index3 59


Median Household Income $72,550
Average Household Income $104,471
Per Capita Income $40,370


Total Housing Units 1,517,792 (100%)
Owner Occupied HU 896,335 (59.1%)
Renter Occupied HU 490,769 (32.3%)
Vacant Housing Units 130,688 ( 8.6%)
Median Home Value $286,902
Average Home Value $371,379


Total Households 1,387,104
Average Household Size 2.55
Family Households 913,479
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  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.


2010-2017 2017-2022
Population 0.29% 0.27%
Households 0.16% 0.19%
Families 0.07% 0.14%
Median Household Income   2.11%
Per Capita Income   2.39%