What city is ZIP code 02123?

02123 is a Boston, Massachusetts ZIP code.

What county is 02123 in?

ZIP code 02123 is in Suffolk County, Massachusetts.

What time zone is ZIP code 02123 in?

02123 is in the Eastern Time zone (America/New_York).

What area code is 02123?

Phone numbers in ZIP code 02123 use area code 617.

Can I use 02123 for a street address?

No. 02123 is only for PO Boxes. Street addresses in Boston use 02108, 02109, 02110.

What ZIP codes are near 02123?

The nearest ZIP codes to 02123 are 02204 (Boston, 0 miles), 02206 (Boston, 0 miles), 02217 (Boston, 0 miles) and 02283 (Boston, 0 miles).

ZIP code 02123

Where is ZIP code 02123?

Boston, Massachusetts

Suffolk County · PO Box only ZIP code

ZIP code 02123 belongs to Boston, Massachusetts in Suffolk County. 02123 is a PO Box only ZIP code: it is used for post office boxes at the Boston post office, not for street addresses. It is in the Eastern Time zone and uses area code 617. The closest ZIP codes are 02204 (Boston, 0 mi north), 02206 (Boston, 0 mi north) and 02217 (Boston, 0 mi north).

ZIP code	02123
Type	PO Box only (no street delivery)
Status	Active
City	Boston
State	Massachusetts (MA)
County	Suffolk County
Time zone	Eastern Time · now
Area code	617
Coordinates	42.3389, -70.9196 map
3-digit prefix	021

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 02123

ZIP code	City	Distance	Type
02204	Boston, MA	0 mi N	Unique
02206	Boston, MA	0 mi N	Unique
02217	Boston, MA	0 mi N	Unique
02283	Boston, MA	0 mi N	PO Box only
02284	Boston, MA	0 mi N	PO Box only
02152	Winthrop, MA	4 mi NW	Standard
02045	Hull, MA	4.3 mi SE	Standard
02128	East Boston, MA	5.7 mi W	Standard
02127	South Boston, MA	6 mi W	Standard
01908	Nahant, MA	6 mi N	Standard
02298	Boston, MA	6.5 mi NW	PO Box only
02210	Boston, MA	6.5 mi W	Standard

Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 02123 or measure the distance to another ZIP code.

How to address mail to 02123

JANE SMITH
PO BOX 123
BOSTON MA 02123

Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (02123-XXXX) helps mail sort faster but isn’t required.

Other ZIP codes in Boston, MA

All Boston ZIP codes with population and income →

Questions

What city is ZIP code 02123?: 02123 is a Boston, Massachusetts ZIP code.
What county is 02123 in?: ZIP code 02123 is in Suffolk County, Massachusetts.
What time zone is ZIP code 02123 in?: 02123 is in the Eastern Time zone (America/New_York).
What area code is 02123?: Phone numbers in ZIP code 02123 use area code 617.
Can I use 02123 for a street address?: No. 02123 is only for PO Boxes. Street addresses in Boston use 02108, 02109, 02110.
What ZIP codes are near 02123?: The nearest ZIP codes to 02123 are 02204 (Boston, 0 miles), 02206 (Boston, 0 miles), 02217 (Boston, 0 miles) and 02283 (Boston, 0 miles).