ZIP Code 03259 — North Sandwich, NH
03259 is a standard (street delivery) ZIP code serving North Sandwich, New Hampshire, in Carroll 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 03259 at a glance
| ZIP code | 03259 |
|---|---|
| Primary city | North Sandwich |
| State | New Hampshire (NH) |
| County | Carroll FIPS 33003 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 252 |
| Coordinates | 43.879210, -71.445270 |
How ZIP+4 works in 03259
The four digits after the hyphen encode a delivery segment inside 03259. 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 03259 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 03259.
| ZIP | City | Distance |
|---|---|---|
| 03227 | Center Sandwich, NH | 4.5 mi |
| 03897 | Wonalancet, NH | 6.3 mi |
| 03886 | Tamworth, NH | 7.9 mi |
| 03883 | South Tamworth, NH | 8.2 mi |
| 03285 | Thornton, NH | 10.3 mi |
| 03817 | Chocorua, NH | 10.5 mi |
| 03215 | Waterville Valley, NH | 11 mi |
| 03254 | Moultonborough, NH | 11.2 mi |
| 03245 | Holderness, NH | 11.4 mi |
| 03818 | Conway, NH | 11.6 mi |
| 03223 | Campton, NH | 11.7 mi |
| 03226 | Center Harbor, NH | 12.6 mi |
Questions about 03259
What is the ZIP+4 code for 03259?
03259 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 03259, you need to look up a specific street address to get them.
What city is 03259?
03259 is assigned to North Sandwich, New Hampshire, in Carroll 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.