ZIP Code 03771 — Monroe, NH
03771 is a standard (street delivery) ZIP code serving Monroe, New Hampshire, in Grafton 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 03771 at a glance
| ZIP code | 03771 |
|---|---|
| Primary city | Monroe |
| State | New Hampshire (NH) |
| County | Grafton FIPS 33009 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 786 |
| Coordinates | 44.284430, -72.009800 |
How ZIP+4 works in 03771
The four digits after the hyphen encode a delivery segment inside 03771. 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 03771 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 03771.
| ZIP | City | Distance |
|---|---|---|
| 05050 | Mcindoe Falls, VT | 3 mi |
| 05821 | Barnet, VT | 5.4 mi |
| 05042 | East Ryegate, VT | 5.6 mi |
| 03585 | Lisbon, NH | 6.9 mi |
| 03740 | Bath, NH | 7.3 mi |
| 05819 | Saint Johnsbury, VT | 8.3 mi |
| 05069 | South Ryegate, VT | 10.1 mi |
| 05081 | Wells River, VT | 10.4 mi |
| 03561 | Littleton, NH | 10.4 mi |
| 05862 | Peacham, VT | 11.2 mi |
| 03586 | Sugar Hill, NH | 11.4 mi |
| 05828 | Danville, VT | 12 mi |
Questions about 03771
What is the ZIP+4 code for 03771?
03771 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 03771, you need to look up a specific street address to get them.
What city is 03771?
03771 is assigned to Monroe, New Hampshire, in Grafton 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.