South Boston, MA 02127 ZIP Code Profile

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Boston, MA | South Boston, MA

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ZIP Code 02127: Basic Data & USPS Preferred City Name

Preferred Name, USPS
South Boston, MA 02127

Acceptable Alternative
Boston, MA 02127

Not Acceptable, USPS
S Boston, MA 02127

  • ZIP Code Type: STANDARD
  • County: Suffolk County
  • Centroid: Latitude 42.339, Longitude -71.025
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 997
  • PO Box Addresses: 217
  • Residential Addresses: 16,258
    • Multi-Family Addresses: 8,697
    • Single Family Addresses: 7,561

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 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.


02127 ZIP Code Map

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South Boston, MA 02127 Data & Demographics (As of July 1, 2017)


Total Population 35,693
Daytime Population: Workers 11,480
Daytime Population: Residents 12,632
Total Daytime Population (TDP) 24,112
Ratio TDP/Total Population1 0.68
Population in Households 35,211
Population in Familes 19,233
Population in Group Qrtrs 482
Population Density2 14,037
Diversity Index3 49


Median Household Income $75,969
Average Household Income $111,137
Per Capita Income $53,066


Total Housing Units 18,199 (100%)
Owner Occupied HU 6,441 (35.4%)
Renter Occupied HU 10,512 (57.8%)
Vacant Housing Units 1,246 ( 6.8%)
Median Home Value $453,762
Average Home Value $496,045


Total Households 16,953
Average Household Size 2.08
Family Households 6,627
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 1.61% 1.49%
Households 1.53% 1.45%
Families 1.39% 1.34%
Median Household Income   3.45%
Per Capita Income   3.28%

South Boston, MA 02127 - Peer Comparisons by Rank and Percentile

The table below compares 02127 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 # 37 93rd
Population Density # 30 94th
Diversity Index # 106 80th
Median Household Income # 262 50th
Per Capita Income # 95 82nd

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

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