Middlesex County CT Information


Middlesex County Subdivisions

Middlesex County CT Data & Demographics (As of July 1, 2016)


Total Population 167,476
Population in Households 162,552
Population in Familes 129,990
Population in Group Qrtrs 4,924
Population Density1 454
Diversity Index2 33


Total Households 67,418
Average Household Size 2.41
Family Households 43,658
Average Family Size 3


Total Housing Units 75,841 (100%)
Owner Occupied HU 48,580 (64.1%)
Renter Occupied HU 18,838 (24.8%)
Vacant Housing Units 8,423 (11.1%)
Median Home Value $297,774
Average Home Value $345,768


Median Household Income $77,610
Average Household Income $102,511
Per Capita Income $41,825
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.17% 0.14%
Households 0.05% 0.05%
Families -0.03% 0.0%
Median Household Income   2.03%
Per Capita Income   1.48%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.


Middlesex County CT - Peer Comparisons by Rank and Percentile

The table below compares Middlesex County to the other 8 counties and county equivalents in Connecticut by rank and percentile using July 1, 2016 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 6 38th
Population Density1 # 4 63rd
Diversity Index2 # 6 38th
Median Household Income # 3 75th
Per Capita Income # 2 88th

Additional comparisons and rankings can be made with a VERY EASY TO USE Connecticut Census Data Comparison Tool.