Boston, MA Profile: Facts, Map & Data


Boston Local Links & Resources:
Hotels | Resources | ALL Boston Content

Also See: Boston, MA ZIP Codes & ZIP Code Maps | Local Area Photos

Boston, Massachusetts - Basic Facts

The City of Boston is the largest city in Massachusetts with a population of 634,253 as of July 1, 2015. Boston ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Massachusetts. See peer rankings below.

The primary coordinate point for Boston is located at latitude 42.332 and longitude -71.0202 in Suffolk County. The formal boundaries for the City of Boston (see map below) encompass a land area of 48.37 sq. miles and a water area of 41.28 sq. miles. Suffolk County is in the Eastern time zone (GMT -5). The elevation is 46 feet.

The City of Boston (GNIS ID: 619463) has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Beneath the boundary map are tables with Boston population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2015.

Alternate Unofficial Names for Boston: Baston, Mushauwomuk, Old Boston, Shawmut, Shawmutt, Shawnnut, Totant, Tramount, Tremont, Trimountain, Trimountaine, Wahstoronòn:ke, Wastok.

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


City of Boston, MA Boundary Map

Also See: BIG Map | Driving Directions | MA Congressional Districts
Boundary Maps: Suffolk County | Massachusetts Counties

Search the map for:

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


Total Population 634,253
Population in Households 586,350
Population in Familes 363,952
Population in Group Qrtrs 47,903
Population Density1 13,138
Diversity Index2 77


Total Households 261,035
Average Household Size 2.25
Family Households 118,758
Average Family Size 3


Total Housing Units 282,298 (100%)
Owner Occupied HU 89,252 (31.6%)
Renter Occupied HU 171,783 (60.9%)
Vacant Housing Units 21,263 ( 7.5%)
Median Home Value $464,566
Average Home Value $542,891


Median Household Income $55,755
Average Household Income $79,564
Per Capita Income $33,194
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.51% 0.93%
Households 0.62% 1.05%
Families 0.41% 0.93%
Median Household Income   2.68%
Per Capita Income   2.73%
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.


Boston, MA - Peer Comparisons by Rank and Percentile

The table below compares Boston to the other 244 incorporated cities, towns and CDPs 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 # 1 100th
Population Density1 # 4 99th
Diversity Index2 # 7 98th
Median Household Income # 175 29th
Per Capita Income # 138 44th

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