ZIP Code 06255 — North Grosvenordale, CT
06255 is a standard (street delivery) ZIP code serving North Grosvenordale, Connecticut, in Northeastern Connecticut 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 06255 at a glance
| ZIP code | 06255 |
|---|---|
| Primary city | North Grosvenordale |
| State | Connecticut (CT) |
| County | Northeastern Connecticut FIPS 09150 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 4,494 |
| Coordinates | 41.987910, -71.902990 |
How ZIP+4 works in 06255
The four digits after the hyphen encode a delivery segment inside 06255. 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 06255 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 06255.
| ZIP | City | Distance |
|---|---|---|
| 06262 | Quinebaug, CT | 3.2 mi |
| 06277 | Thompson, CT | 3.5 mi |
| 01571 | Dudley, MA | 4.9 mi |
| 01570 | Webster, MA | 5.2 mi |
| 06260 | Putnam, CT | 5.7 mi |
| 06281 | Woodstock, CT | 5.8 mi |
| 06258 | Pomfret, CT | 7.7 mi |
| 02859 | Pascoag, RI | 8.2 mi |
| 01550 | Southbridge, MA | 8.4 mi |
| 01516 | Douglas, MA | 9 mi |
| 01540 | Oxford, MA | 9.2 mi |
| 06259 | Pomfret Center, CT | 9.3 mi |
Questions about 06255
What is the ZIP+4 code for 06255?
06255 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 06255, you need to look up a specific street address to get them.
What city is 06255?
06255 is assigned to North Grosvenordale, Connecticut, in Northeastern Connecticut 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.