Cambridge, MA 02139 ZIP Code Profile

Related Place Profiles:
Cambridge, MA | Cambridgeport, MA

ZIP Code 02139: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Cambridge, MA 02139

Not Acceptable, USPS
Cambridgeport, MA 02139
Inman Square, MA 02139

  • ZIP Code Type: STANDARD
  • County: Middlesex County
  • Centroid: Latitude 42.366, Longitude -71.103
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 1,592
  • PO Box Addresses: 649
  • Residential Addresses: 14,960
    • Multi-Family Addresses: 9,149
    • Single Family Addresses: 5,811

The ZIP Code maps and database are updated 4 times per year.
Database updated: May 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic 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 demographic data.


02139 ZIP Code Map

Search the map for:

Cambridge, MA 02139 Data & Demographics (As of July 1, 2017)


Total Population 38,563
Daytime Population: Workers 41,694
Daytime Population: Residents 15,013
Total Daytime Population (TDP) 56,707
Ratio TDP/Total Population1 1.47
Population in Households 32,201
Population in Familes 16,165
Population in Group Qrtrs 6,362
Population Density2 24,747
Diversity Index3 69


Median Household Income $75,861
Average Household Income $110,882
Per Capita Income $46,660


Total Housing Units 16,473 (100%)
Owner Occupied HU 4,474 (27.2%)
Renter Occupied HU 10,941 (66.4%)
Vacant Housing Units 1,058 ( 6.4%)
Median Home Value $606,728
Average Home Value $663,171


Total Households 15,415
Average Household Size 2.09
Family Households 5,736
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. 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 0.68% 0.7%
Households 0.65% 0.82%
Families 0.47% 0.71%
Median Household Income   4.88%
Per Capita Income   3.59%

Cambridge, MA 02139 - Peer Comparisons by Rank and Percentile

The table below compares 02139 to the other 521 ZIP Codes in Massachusetts by rank and percentile using July 1, 2017 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 # 30 94th
Population Density # 11 98th
Diversity Index # 52 90th
Median Household Income # 263 50th
Per Capita Income # 158 70th

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

Massachusetts Research Tools

Massachusetts Census Data Comparison Tool

Compare Massachusetts Census Data
Highest or Lowest: