Suffolk County MA Information


Suffolk County Subdivisions

Suffolk County MA Data & Demographics (As of July 1, 2015)


Total Population 742,039
Population in Households 693,088
Population in Familes 444,567
Population in Group Qrtrs 48,951
Population Density1 12,760
Diversity Index2 77


Total Households 302,385
Average Household Size 2.29
Family Households 143,492
Average Family Size 3


Total Housing Units 326,806 (100%)
Owner Occupied HU 107,258 (32.8%)
Renter Occupied HU 195,127 (59.7%)
Vacant Housing Units 24,421 ( 7.5%)
Median Home Value $442,436
Average Home Value $516,513


Median Household Income $55,158
Average Household Income $77,689
Per Capita Income $32,046
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.52% 0.94%
Households 0.62% 1.05%
Families 0.41% 0.93%
Median Household Income   2.55%
Per Capita Income   2.68%
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.


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, 2015 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 # 4 79th
Population Density1 # 1 100th
Diversity Index2 # 1 100th
Median Household Income # 11 29th
Per Capita Income # 9 43rd

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