ZIP Code 01037 — Hardwick, MA
01037 is a standard (street delivery) ZIP code serving Hardwick, Massachusetts, in Worcester 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.
ZIP code 01037 at a glance
| ZIP code | 01037 |
|---|---|
| Primary city | Hardwick |
| State | Massachusetts (MA) |
| County | Worcester FIPS 25027 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 572 |
| Coordinates | 42.370630, -72.194660 |
How ZIP+4 works in 01037
The four digits after the hyphen encode a delivery segment inside 01037. In practice one segment usually means:
- One side of one block — odd numbers on a street between two cross streets
- A single large building, or one floor of it
- A group of PO boxes, sometimes a single box
- A single business that receives enough mail to warrant its own code
That is why 01037 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.
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 01037.
| ZIP | City | Distance |
|---|---|---|
| 01094 | Wheelwright, MA | 3 mi |
| 01031 | Gilbertville, MA | 3 mi |
| 01074 | South Barre, MA | 4.9 mi |
| 01531 | New Braintree, MA | 4.9 mi |
| 01005 | Barre, MA | 5.7 mi |
| 01082 | Ware, MA | 6.5 mi |
| 01068 | Oakham, MA | 7.6 mi |
| 01366 | Petersham, MA | 8.2 mi |
| 01355 | New Salem, MA | 8.9 mi |
| 01535 | North Brookfield, MA | 9.2 mi |
| 01585 | West Brookfield, MA | 9.3 mi |
| 01083 | Warren, MA | 11.3 mi |
Questions about 01037
What is the ZIP+4 code for 01037?
01037 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 01037, you need to look up a specific street address to get them.
What city is 01037?
01037 is assigned to Hardwick, Massachusetts, in Worcester 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.