ZIP Code 02666 — Truro, MA
02666 is a standard (street delivery) ZIP code serving Truro, Massachusetts, in Barnstable 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 02666 at a glance
| ZIP code | 02666 |
|---|---|
| Primary city | Truro |
| State | Massachusetts (MA) |
| County | Barnstable FIPS 25001 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 863 |
| Coordinates | 41.988170, -70.046030 |
How ZIP+4 works in 02666
The four digits after the hyphen encode a delivery segment inside 02666. 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 02666 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 02666.
| ZIP | City | Distance |
|---|---|---|
| 02667 | Wellfleet, MA | 4.3 mi |
| 02652 | North Truro, MA | 4.5 mi |
| 02663 | South Wellfleet, MA | 6.4 mi |
| 02657 | Provincetown, MA | 9.3 mi |
| 02642 | Eastham, MA | 10.8 mi |
| 02653 | Orleans, MA | 15.6 mi |
| 02631 | Brewster, MA | 16.7 mi |
| 02643 | East Orleans, MA | 17 mi |
| 02641 | East Dennis, MA | 17.2 mi |
| 02638 | Dennis, MA | 19.2 mi |
| 02645 | Harwich, MA | 19.7 mi |
| 02650 | North Chatham, MA | 20.1 mi |
Questions about 02666
What is the ZIP+4 code for 02666?
02666 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 02666, you need to look up a specific street address to get them.
What city is 02666?
02666 is assigned to Truro, Massachusetts, in Barnstable 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.