US Gazetteer > Massachusetts Gazetteer > Massachusetts ZIP Codes > Boston, MA 02121

City/Town Names Most Popular Resources Current Weather & 7-Day Forecast 
Preferred Name, USPS
Boston, MA 02121
Acceptable Alternative
Dorchester, MA 02121
Grove Hall, MA 02121

Boston MA MLS real estate listings Search the MLS in Boston, MA

Property & neighborhood reports Property & Neighborhood Reports

Apartments in/near Boston MA Apartments | Job Search

background checks Instant Background Checks
Weather forecast ZIP Code 02121

The 02121 ZIP Code is centered1 in Suffolk County at latitude 42.306 and longitude -71.085 (Panoramio Photos). It is a standard type ZIP Code. Suffolk County is in the Eastern Time Zone (UTC -5 hours) and observes daylight savings time.

The population in ZIP Code Tabulation Area (ZCTA) 02121 was 25,057 with 9,846 housing units; a land area land area of 1.28 sq. miles; a water area of 0 sq. miles; and a population density of 19,572.57 people per sq. mile for Census 2000. Demographic Profile

Boston, MA 02121 Map (Marker is ZIP Code Centroid)

Local Search, 02121 ZIP Code| Distance & Driving Directions

Nearby Cities, Towns & Census Designated Places

Mount Bowdoin, MA (< 0.1 mile)
Grove Hall, MA (< 0.1 mile)
Dorchester, MA (< 0.1 mile)
Dorchester Center, MA (1.4 miles SE)
Meeting House Hill, MA (1.4 miles E)
Fields Corner, MA (1.4 miles ESE)
Roxbury, MA (1.4 miles NNW)
Savin Hill, MA (1.4 miles ENE)
Uphams Corner, MA (1.4 miles ENE)
Mount Ida, MA (1.4 miles E)

Nearby Neighborhoods, Subdivisions & Other Small Populated Places

Forest Hills, MA (1.4 miles WSW)
Mattapan, MA (2.4 miles S)
Clarendon Hills, MA (3.1 miles SW)
New Squantum, MA (3.1 miles ESE)
Bay Village, MA (3.1 miles NNE)
Dock Square, MA (3.4 miles NNE)
Beacon Hill, MA (3.6 miles NNE)
Downtown Crossing, MA (3.6 miles NNE)
North End, MA (4.3 miles NNE)
Coolidge Hill, MA (5.5 miles NNW)

ZIP Codes - Key Concepts

  1. ZIP Codes are categories for grouping mailing addresses and are not exact geographic regions.
  2. The centroid of a ZIP Code may be in one County and the associated city/town in another.
  3. In rural areas, a single ZIP Code may be used for cities and towns in several different Counties.
  4. ZIP Code "areas" can overlap, be subsets of each other, or be artificial constructs with no geographic area.
  5. ZIP Codes are only loosely tied to cities.

1 Keeping the above key concepts in mind, what we informally refer to as the "center" of a ZIP Code is most often actually the centroid of a polygon.