Cambridge, MA 02138 ZIP Code Profile

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Cambridge, MA

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ZIP Code 02138: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Cambridge, MA 02138

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 1,621
  • Single Family Addresses: 5,966
  • Multi-Family Addresses: 9,430
  • County: Middlesex County
  • Centroid: Latitude 42.377, Longitude -71.131
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

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.


02138 ZIP Code Map

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Cambridge, MA 02138 Data & Demographics (As of July 1, 2016)


Total Population 37,899
Population in Households 27,734
Population in Familes 14,918
Population in Group Qrtrs 10,165
Population Density1 12,124
Diversity Index2 58


Total Households 14,576
Average Household Size 1.9
Family Households 5,522
Average Family Size 3


Total Housing Units 15,589 (100%)
Owner Occupied HU 5,211 (33.4%)
Renter Occupied HU 9,365 (60.1%)
Vacant Housing Units 1,013 ( 6.5%)
Median Home Value $745,241
Average Home Value $807,719


Median Household Income $79,217
Average Household Income $121,480
Per Capita Income $50,449
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.71% 0.78%
Households 0.77% 0.98%
Families 0.69% 0.94%
Median Household Income   2.13%
Per Capita Income   1.41%
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.

Cambridge, MA 02138 - Peer Comparisons by Rank and Percentile

The table below compares 02138 to the other 515 ZIP Codes in Massachusetts by rank and percentile using July 1, 2016 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 # 28 95th
Population Density1 # 36 93rd
Diversity Index2 # 75 85th
Median Household Income # 215 58th
Per Capita Income # 102 80th

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

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