ZIP Code 04951 — Monroe, ME
04951 is a standard (street delivery) ZIP code serving Monroe, Maine, in Waldo 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 04951 at a glance
| ZIP code | 04951 |
|---|---|
| Primary city | Monroe |
| State | Maine (ME) |
| County | Waldo FIPS 23027 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 1,001 |
| Coordinates | 44.607160, -69.045750 |
How ZIP+4 works in 04951
The four digits after the hyphen encode a delivery segment inside 04951. 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 04951 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 04951.
| ZIP | City | Distance |
|---|---|---|
| 04921 | Brooks, ME | 4.9 mi |
| 04438 | Frankfort, ME | 6.3 mi |
| 04496 | Winterport, ME | 7.5 mi |
| 04932 | Dixmont, ME | 7.5 mi |
| 04986 | Thorndike, ME | 9.5 mi |
| 04444 | Hampden, ME | 9.6 mi |
| 04915 | Belfast, ME | 9.7 mi |
| 04974 | Searsport, ME | 9.9 mi |
| 04981 | Stockton Springs, ME | 10.5 mi |
| 04987 | Troy, ME | 11.4 mi |
| 04434 | Etna, ME | 13 mi |
| 04419 | Carmel, ME | 13.1 mi |
Questions about 04951
What is the ZIP+4 code for 04951?
04951 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 04951, you need to look up a specific street address to get them.
What city is 04951?
04951 is assigned to Monroe, Maine, in Waldo 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.