ZIP Code 02891 — Westerly, RI
02891 is a standard (street delivery) ZIP code serving Westerly, Rhode Island, in Washington 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 02891 at a glance
| ZIP code | 02891 |
|---|---|
| Primary city | Westerly |
| State | Rhode Island (RI) |
| County | Washington FIPS 44009 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 21,587 |
| Coordinates | 41.360430, -71.794290 |
How ZIP+4 works in 02891
The four digits after the hyphen encode a delivery segment inside 02891. 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 02891 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 02891.
| ZIP | City | Distance |
|---|---|---|
| 06379 | Pawcatuck, CT | 3.3 mi |
| 02808 | Bradford, RI | 4 mi |
| 02804 | Ashaway, RI | 5.3 mi |
| 06378 | Stonington, CT | 6.3 mi |
| 02813 | Charlestown, RI | 6.9 mi |
| 02894 | Wood River Junction, RI | 7.8 mi |
| 02833 | Hopkinton, RI | 8.4 mi |
| 06359 | North Stonington, CT | 8.6 mi |
| 06355 | Mystic, CT | 9.3 mi |
| 02832 | Hope Valley, RI | 10.5 mi |
| 02812 | Carolina, RI | 10.6 mi |
| 02875 | Shannock, RI | 10.6 mi |
Questions about 02891
What is the ZIP+4 code for 02891?
02891 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 02891, you need to look up a specific street address to get them.
What city is 02891?
02891 is assigned to Westerly, Rhode Island, in Washington 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.