Dorchester, MA ZIP Codes, Coordinates & Counties
Dorchester, Massachusetts has 3 ZIP codes in Suffolk county. The approximate center of Dorchester is 42.307, -71.059. Dorchester has about 133,253 known street addresses.
ZIP codes in Dorchester, MA
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 02121 | Suffolk | 42.306 | -71.086 |
| 02122 | Suffolk | 42.3 | -71.034 |
| 02125 | Suffolk | 42.315 | -71.056 |
Counties Dorchester spans
Suffolk
Most common streets in Dorchester
Columbia, Point, Dorchester, Adams, Dudley, Geneva, Harbor Point, Bowdoin, William T Morrissey, Washington
Frequently asked questions
What ZIP codes are in Dorchester, MA?
Dorchester, Massachusetts has 3 ZIP codes, ranging from 02121 to 02125. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Dorchester, MA in?
Dorchester is in Suffolk county.
What are the latitude and longitude of Dorchester, MA?
The approximate center of Dorchester, Massachusetts is latitude 42.307, longitude -71.059. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Dorchester, MA have?
Dorchester has 3 ZIP codes.
How many addresses are in Dorchester, MA?
Dorchester, Massachusetts has about 133,253 known street addresses in the sthan.io US address database.
What are the most common streets in Dorchester, MA?
Some of the most common street names in Dorchester are Columbia, Point, Dorchester, Adams, Dudley, Geneva.
What cities are near Dorchester, MA?
Cities near Dorchester include Dorchester Center (2 mi), Roxbury (2 mi), South Boston (2 mi), Boston (3 mi), Jamaica Plain (3 mi).
Cities near Dorchester
Dorchester Center, MA (2 mi) Roxbury, MA (2 mi) South Boston, MA (2 mi) Boston, MA (3 mi) Jamaica Plain, MA (3 mi) Mattapan, MA (3 mi) Roxbury Crossing, MA (3 mi) Brookline, MA (4 mi)
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View the API →Last updated: June 2026 · Data: sthan.io US address database