What city is ZIP code 02238?

02238 is a Cambridge, Massachusetts ZIP code. Harvard Sq and Harvard Square are also accepted as the city name.

What county is 02238 in?

ZIP code 02238 is in Middlesex County, Massachusetts.

What time zone is ZIP code 02238 in?

02238 is in the Eastern Time zone (America/New_York).

What area code is 02238?

Phone numbers in ZIP code 02238 use area code 617.

Can I use 02238 for a street address?

No. 02238 is only for PO Boxes. Street addresses in Cambridge use 02138, 02139, 02140.

What ZIP codes are near 02238?

The nearest ZIP codes to 02238 are 02143 (Somerville, 0.6 miles), 02139 (Cambridge, 0.7 miles), 02138 (Cambridge, 1 miles) and 02141 (Cambridge, 1.2 miles).

ZIP code 02238

Where is ZIP code 02238?

Cambridge, Massachusetts

Middlesex County · PO Box only ZIP code

ZIP code 02238 belongs to Cambridge, Massachusetts in Middlesex County. 02238 is a PO Box only ZIP code: it is used for post office boxes at the Cambridge post office, not for street addresses. It is in the Eastern Time zone and uses area code 617. The closest ZIP codes are 02143 (Somerville, 0.6 mi north), 02139 (Cambridge, 0.7 mi south) and 02138 (Cambridge, 1 mi west).

ZIP code	02238
Type	PO Box only (no street delivery)
Status	Active
City	Cambridge
Also accepted	Harvard Sq, Harvard Square
State	Massachusetts (MA)
County	Middlesex County
Time zone	Eastern Time · now
Area code	617
Coordinates	42.3751, -71.1056 map
3-digit prefix	022

The Census Bureau doesn’t publish population figures for po box only ZIP codes because nobody lives at a PO Box or a single organization’s address. For figures about the area, see the nearby standard ZIP codes below.

ZIP codes near 02238

ZIP code	City	Distance	Type
02143	Somerville, MA	0.6 mi N	Standard
02139	Cambridge, MA	0.7 mi S	Standard
02138	Cambridge, MA	1 mi W	Standard
02141	Cambridge, MA	1.2 mi E	Standard
02145	Somerville, MA	1.3 mi NE	Standard
02142	Cambridge, MA	1.5 mi SE	Standard
02140	Cambridge, MA	1.9 mi NW	Standard
02144	Somerville, MA	1.9 mi NW	Standard
02215	Boston, MA	1.9 mi S	Standard
02134	Allston, MA	2 mi SW	Standard
02114	Boston, MA	2.1 mi SE	Standard
02129	Charlestown, MA	2.2 mi E	Standard

Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 02238 or measure the distance to another ZIP code.

How to address mail to 02238

JANE SMITH
PO BOX 123
CAMBRIDGE MA 02238

Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts HARVARD SQ and HARVARD SQUARE as the city name for 02238. Adding the 4-digit ZIP+4 code (02238-XXXX) helps mail sort faster but isn’t required.

Other ZIP codes in Cambridge, MA

All Cambridge ZIP codes with population and income →

Questions

What city is ZIP code 02238?: 02238 is a Cambridge, Massachusetts ZIP code. Harvard Sq and Harvard Square are also accepted as the city name.
What county is 02238 in?: ZIP code 02238 is in Middlesex County, Massachusetts.
What time zone is ZIP code 02238 in?: 02238 is in the Eastern Time zone (America/New_York).
What area code is 02238?: Phone numbers in ZIP code 02238 use area code 617.
Can I use 02238 for a street address?: No. 02238 is only for PO Boxes. Street addresses in Cambridge use 02138, 02139, 02140.
What ZIP codes are near 02238?: The nearest ZIP codes to 02238 are 02143 (Somerville, 0.6 miles), 02139 (Cambridge, 0.7 miles), 02138 (Cambridge, 1 miles) and 02141 (Cambridge, 1.2 miles).