ZIP Code 06751 — Bethlehem, CT
06751 is a standard (street delivery) ZIP code serving Bethlehem, Connecticut, in Naugatuck Valley 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 06751 at a glance
| ZIP code | 06751 |
|---|---|
| Primary city | Bethlehem |
| State | Connecticut (CT) |
| County | Naugatuck Valley FIPS 09140 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 3,423 |
| Coordinates | 41.637920, -73.212200 |
How ZIP+4 works in 06751
The four digits after the hyphen encode a delivery segment inside 06751. 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 06751 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 06751.
| ZIP | City | Distance |
|---|---|---|
| 06758 | Lakeside, CT | 2.8 mi |
| 06763 | Morris, CT | 3.6 mi |
| 06793 | Washington, CT | 4 mi |
| 06795 | Watertown, CT | 4.8 mi |
| 06798 | Woodbury, CT | 5.3 mi |
| 06794 | Washington Depot, CT | 5.9 mi |
| 06750 | Bantam, CT | 6.4 mi |
| 06787 | Thomaston, CT | 6.9 mi |
| 06783 | Roxbury, CT | 7.3 mi |
| 06779 | Oakville, CT | 7.4 mi |
| 06777 | New Preston Marble Dale, CT | 7.6 mi |
| 06778 | Northfield, CT | 7.7 mi |
Questions about 06751
What is the ZIP+4 code for 06751?
06751 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 06751, you need to look up a specific street address to get them.
What city is 06751?
06751 is assigned to Bethlehem, Connecticut, in Naugatuck Valley 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.