zip4lookup

ZIP Code 02144 — Somerville, MA

02144 is a standard (street delivery) ZIP code serving Somerville, Massachusetts, in Middlesex County. To mail something here you only need these five digits — but the four-digit extension narrows delivery to a single point, and it is what USPS bulk postage discounts are priced on.

Free. No account needed.

ZIP code 02144 at a glance

ZIP code02144
Primary citySomerville
StateMassachusetts (MA)
CountyMiddlesex FIPS 25017
ZIP typeStandard (street delivery)
Time zoneAmerica/New_York
Population25,448
Coordinates42.400880, -71.122000

How ZIP+4 works in 02144

The four digits after the hyphen encode a delivery segment inside 02144. In practice one segment usually means:

That is why 02144 has no single ZIP+4: two neighbors across the street from each other usually have different ones. Enter a street address above and we will return the exact nine-digit code along with the standardized USPS address format.

Other ZIP codes in Somerville

Nearby ZIP codes

Showing the closest twelve. See every ZIP code within 25 miles of 02144.

ZIPCityDistance
02140 Cambridge, MA 0.8 mi
02138 Cambridge, MA 1.6 mi
02155 Medford, MA 1.7 mi
02145 Somerville, MA 1.8 mi
02143 Somerville, MA 1.9 mi
02474 Arlington, MA 2.2 mi
02163 Boston, MA 2.3 mi
02139 Cambridge, MA 2.8 mi
02141 Cambridge, MA 2.9 mi
02476 Arlington, MA 2.9 mi
02134 Allston, MA 2.9 mi
02478 Belmont, MA 3 mi

Questions about 02144

What is the ZIP+4 code for 02144?

02144 is the five-digit ZIP code. The ZIP+4 adds four more digits that identify a specific delivery point — usually one side of a city block, a single building, or a group of PO boxes. Because those four digits change from address to address within 02144, you need to look up a specific street address to get them.

What city is 02144?

02144 is assigned to Somerville, Massachusetts, in Middlesex County.

Do I need to use the ZIP+4?

It is optional for ordinary mail, but it speeds up sorting and it is required for most USPS bulk-mail postage discounts. Many address-verification and e-commerce systems also use ZIP+4 to confirm a delivery point exists.

Need thousands of these?

Upload a CSV and get ZIP+4, county, carrier route, and delivery-point data appended to every row — or call the API directly.

Bulk lookup API docs