Suffolk County MA Information


Suffolk County Subdivisions

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


Total Population 788,541
Population in Households 737,910
Population in Familes 479,342
Population in Group Qrtrs 50,631
Population Density1 13,560
Diversity Index2 79


Median Household Income $59,309
Average Household Income $91,032
Per Capita Income $37,328


Total Housing Units 338,919 (100%)
Owner Occupied HU 112,034 (33.1%)
Renter Occupied HU 204,299 (60.3%)
Vacant Housing Units 22,586 ( 6.7%)
Median Home Value $435,365
Average Home Value $541,636


Total Households 316,333
Average Household Size 2.33
Family Households 150,776
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 1.07% 1.03%
Households 0.94% 1.0%
Families 0.87% 0.96%
Median Household Income   3.73%
Per Capita Income   3.17%


Suffolk County MA - Peer Comparisons by Rank and Percentile

The table below compares Suffolk 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 # 3 86th
Population Density # 1 100th
Diversity Index # 1 100th
Median Household Income # 11 29th
Per Capita Income # 8 50th

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