ZIP Code 01070 — Plainfield, MA
01070 is a standard (street delivery) ZIP code serving Plainfield, Massachusetts, in Hampshire 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 01070 at a glance
| ZIP code | 01070 |
|---|---|
| Primary city | Plainfield |
| State | Massachusetts (MA) |
| County | Hampshire FIPS 25015 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 575 |
| Coordinates | 42.519580, -72.925040 |
How ZIP+4 works in 01070
The four digits after the hyphen encode a delivery segment inside 01070. 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 01070 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 01070.
| ZIP | City | Distance |
|---|---|---|
| 01026 | Cummington, MA | 3.5 mi |
| 01330 | Ashfield, MA | 5.6 mi |
| 01270 | Windsor, MA | 6.3 mi |
| 01339 | Charlemont, MA | 6.6 mi |
| 01256 | Savoy, MA | 7.1 mi |
| 01032 | Goshen, MA | 7.1 mi |
| 01338 | Buckland, MA | 7.5 mi |
| 01098 | Worthington, MA | 8.6 mi |
| 01084 | West Chesterfield, MA | 9.5 mi |
| 01235 | Hinsdale, MA | 9.7 mi |
| 01012 | Chesterfield, MA | 10.1 mi |
| 01343 | Drury, MA | 10.7 mi |
Questions about 01070
What is the ZIP+4 code for 01070?
01070 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 01070, you need to look up a specific street address to get them.
What city is 01070?
01070 is assigned to Plainfield, Massachusetts, in Hampshire 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.