ZIP Code 02790 — Westport, MA
02790 is a standard (street delivery) ZIP code serving Westport, Massachusetts, in Bristol 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 02790 at a glance
| ZIP code | 02790 |
|---|---|
| Primary city | Westport |
| State | Massachusetts (MA) |
| County | Bristol FIPS 25005 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 16,901 |
| Coordinates | 41.599670, -71.082660 |
How ZIP+4 works in 02790
The four digits after the hyphen encode a delivery segment inside 02790. 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 02790 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 02790.
| ZIP | City | Distance |
|---|---|---|
| 02878 | Tiverton, RI | 4.8 mi |
| 02791 | Westport Point, MA | 5.3 mi |
| 02747 | North Dartmouth, MA | 5.4 mi |
| 02748 | South Dartmouth, MA | 5.9 mi |
| 02721 | Fall River, MA | 6.2 mi |
| 02723 | Fall River, MA | 6.9 mi |
| 02837 | Little Compton, RI | 7.2 mi |
| 02724 | Fall River, MA | 7.7 mi |
| 02740 | New Bedford, MA | 7.9 mi |
| 02746 | New Bedford, MA | 8.4 mi |
| 02744 | New Bedford, MA | 8.8 mi |
| 02871 | Portsmouth, RI | 9 mi |
Questions about 02790
What is the ZIP+4 code for 02790?
02790 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 02790, you need to look up a specific street address to get them.
What city is 02790?
02790 is assigned to Westport, Massachusetts, in Bristol 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.