ZIP Code 01226 — Dalton, MA
01226 is a standard (street delivery) ZIP code serving Dalton, Massachusetts, in Berkshire 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 01226 at a glance
| ZIP code | 01226 |
|---|---|
| Primary city | Dalton |
| State | Massachusetts (MA) |
| County | Berkshire FIPS 25003 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 6,256 |
| Coordinates | 42.479540, -73.153290 |
How ZIP+4 works in 01226
The four digits after the hyphen encode a delivery segment inside 01226. 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 01226 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 01226.
| ZIP | City | Distance |
|---|---|---|
| 01224 | Berkshire, MA | 2.9 mi |
| 01235 | Hinsdale, MA | 5.2 mi |
| 01225 | Cheshire, MA | 5.8 mi |
| 01270 | Windsor, MA | 5.8 mi |
| 01201 | Pittsfield, MA | 6.7 mi |
| 01237 | Lanesborough, MA | 7.2 mi |
| 01240 | Lenox, MA | 9.1 mi |
| 01220 | Adams, MA | 10.3 mi |
| 01256 | Savoy, MA | 10.5 mi |
| 01243 | Middlefield, MA | 10.9 mi |
| 01242 | Lenox Dale, MA | 11.2 mi |
| 01026 | Cummington, MA | 11.7 mi |
Questions about 01226
What is the ZIP+4 code for 01226?
01226 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 01226, you need to look up a specific street address to get them.
What city is 01226?
01226 is assigned to Dalton, Massachusetts, in Berkshire 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.