Middlesex County MA Information


Middlesex County Subdivisions

Middlesex County MA Data & Demographics (As of July 1, 2018)


Total Population 1,611,839
Population in Households 1,555,107
Population in Familes 1,222,707
Population in Group Qrtrs 56,732
Population Density1 1,971
Diversity Index2 51


Median Household Income $95,634
Average Household Income $128,180
Per Capita Income $49,579


Total Housing Units 646,252 (100%)
Owner Occupied HU 368,996 (57.1%)
Renter Occupied HU 246,498 (38.1%)
Vacant Housing Units 30,758 ( 4.8%)
Median Home Value $481,839
Average Home Value $584,457


Total Households 615,494
Average Household Size 2.53
Family Households 386,933
Average Family Size 3
  1. Population Density = Total Population per square mile.
  2. 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 0.85% 0.83%
Households 0.71% 0.75%
Families 0.65% 0.72%
Median Household Income   2.0%
Per Capita Income   2.51%


Middlesex County MA - Peer Comparisons by Rank and Percentile

The table below compares Middlesex County to the other 14 counties and county equivalents in Massachusetts by rank and percentile using July 1, 2018 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 # 1 100th
Population Density # 2 93rd
Diversity Index # 4 79th
Median Household Income # 3 86th
Per Capita Income # 3 86th

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