What city is ZIP code 01561?

01561 is a South Lancaster, Massachusetts ZIP code. S Lancaster is also accepted as the city name.

What county is 01561 in?

ZIP code 01561 is in Worcester County, Massachusetts.

What time zone is ZIP code 01561 in?

01561 is in the Eastern Time zone (America/New_York).

What area code is 01561?

Phone numbers in ZIP code 01561 use area codes 351 and 978.

Can I use 01561 for a street address?

No. 01561 is only for PO Boxes. Street addresses in South Lancaster use another ZIP code.

What ZIP codes are near 01561?

The nearest ZIP codes to 01561 are 01523 (Lancaster, 0.5 miles), 01510 (Clinton, 1.8 miles), 01740 (Bolton, 4 miles) and 01564 (Sterling, 4.6 miles).

ZIP code 01561

Where is ZIP code 01561?

South Lancaster, Massachusetts

Worcester County · PO Box only ZIP code

ZIP code 01561 belongs to South Lancaster, Massachusetts in Worcester County. 01561 is a PO Box only ZIP code: it is used for post office boxes at the South Lancaster post office, not for street addresses. It is in the Eastern Time zone and uses area codes 351 and 978. The closest ZIP codes are 01523 (Lancaster, 0.5 mi north), 01510 (Clinton, 1.8 mi south) and 01740 (Bolton, 4 mi east).

ZIP code	01561
Type	PO Box only (no street delivery)
Status	Active
City	South Lancaster
Also accepted	S Lancaster
State	Massachusetts (MA)
County	Worcester County
Time zone	Eastern Time · now
Area codes	351, 978
Coordinates	42.4435, -71.6861 map
3-digit prefix	015

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 01561

ZIP code	City	Distance	Type
01523	Lancaster, MA	0.5 mi N	Standard
01510	Clinton, MA	1.8 mi S	Standard
01740	Bolton, MA	4 mi E	Standard
01564	Sterling, MA	4.6 mi W	Standard
01467	Still River, MA	4.8 mi NE	PO Box only
01503	Berlin, MA	4.8 mi SE	Standard
01451	Harvard, MA	6.8 mi NE	Standard
01453	Leominster, MA	6.8 mi NW	Standard
01749	Hudson, MA	7.3 mi SE	Standard
01434	Devens, MA	7.6 mi NE	Standard
01505	Boylston, MA	7.7 mi S	Standard
01583	West Boylston, MA	7.7 mi SW	Standard

Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 01561 or measure the distance to another ZIP code.

How to address mail to 01561

JANE SMITH
PO BOX 123
SOUTH LANCASTER MA 01561

Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts S LANCASTER as the city name for 01561. Avoid So Lancaster: USPS doesn’t recognize it as the city for this ZIP code. Adding the 4-digit ZIP+4 code (01561-XXXX) helps mail sort faster but isn’t required.

Questions

What city is ZIP code 01561?: 01561 is a South Lancaster, Massachusetts ZIP code. S Lancaster is also accepted as the city name.
What county is 01561 in?: ZIP code 01561 is in Worcester County, Massachusetts.
What time zone is ZIP code 01561 in?: 01561 is in the Eastern Time zone (America/New_York).
What area code is 01561?: Phone numbers in ZIP code 01561 use area codes 351 and 978.
Can I use 01561 for a street address?: No. 01561 is only for PO Boxes. Street addresses in South Lancaster use another ZIP code.
What ZIP codes are near 01561?: The nearest ZIP codes to 01561 are 01523 (Lancaster, 0.5 miles), 01510 (Clinton, 1.8 miles), 01740 (Bolton, 4 miles) and 01564 (Sterling, 4.6 miles).