ZIP Code 03861 — Lee, NH
03861 is a standard (street delivery) ZIP code serving Lee, New Hampshire, in Strafford 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 03861 at a glance
| ZIP code | 03861 |
|---|---|
| Primary city | Lee |
| State | New Hampshire (NH) |
| County | Strafford FIPS 33017 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 4,576 |
| Coordinates | 43.119310, -71.006800 |
How ZIP+4 works in 03861
The four digits after the hyphen encode a delivery segment inside 03861. 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 03861 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 03861.
| ZIP | City | Distance |
|---|---|---|
| 03857 | Newmarket, NH | 4.4 mi |
| 03824 | Durham, NH | 4.4 mi |
| 03823 | Madbury, NH | 5.1 mi |
| 03290 | Nottingham, NH | 5.8 mi |
| 03042 | Epping, NH | 5.9 mi |
| 03856 | Newfields, NH | 5.9 mi |
| 03825 | Barrington, NH | 6.8 mi |
| 03820 | Dover, NH | 7.8 mi |
| 03291 | West Nottingham, NH | 8 mi |
| 03885 | Stratham, NH | 8.9 mi |
| 03840 | Greenland, NH | 9.7 mi |
| 03833 | Exeter, NH | 10 mi |
Questions about 03861
What is the ZIP+4 code for 03861?
03861 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 03861, you need to look up a specific street address to get them.
What city is 03861?
03861 is assigned to Lee, New Hampshire, in Strafford 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.