ZIP Code 03864 — Ossipee, NH
03864 is a standard (street delivery) ZIP code serving Ossipee, 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 03864 at a glance
| ZIP code | 03864 |
|---|---|
| Primary city | Ossipee |
| State | New Hampshire (NH) |
| County | Carroll FIPS 33003 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 2,131 |
| Coordinates | 43.690440, -71.106310 |
How ZIP+4 works in 03864
The four digits after the hyphen encode a delivery segment inside 03864. 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 03864 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 03864.
| ZIP | City | Distance |
|---|---|---|
| 03882 | Effingham, NH | 5 mi |
| 03894 | Wolfeboro, NH | 6.5 mi |
| 03830 | East Wakefield, NH | 6.7 mi |
| 03816 | Center Tuftonboro, NH | 6.8 mi |
| 03814 | Center Ossipee, NH | 7 mi |
| 03872 | Sanbornville, NH | 8.8 mi |
| 03836 | Freedom, NH | 9.5 mi |
| 03850 | Melvin Village, NH | 9.7 mi |
| 03890 | West Ossipee, NH | 9.9 mi |
| 03853 | Mirror Lake, NH | 10 mi |
| 04047 | Parsonsfield, ME | 10.2 mi |
| 04095 | West Newfield, ME | 10.5 mi |
Questions about 03864
What is the ZIP+4 code for 03864?
03864 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 03864, you need to look up a specific street address to get them.
What city is 03864?
03864 is assigned to Ossipee, 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.