ZIP Code 04443 — Guilford, ME
04443 is a standard (street delivery) ZIP code serving Guilford, Maine, in Piscataquis 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 04443 at a glance
| ZIP code | 04443 |
|---|---|
| Primary city | Guilford |
| State | Maine (ME) |
| County | Piscataquis FIPS 23021 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 2,211 |
| Coordinates | 45.244120, -69.405720 |
How ZIP+4 works in 04443
The four digits after the hyphen encode a delivery segment inside 04443. 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 04443 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 04443.
| ZIP | City | Distance |
|---|---|---|
| 04464 | Monson, ME | 5.7 mi |
| 04406 | Abbot, ME | 8.6 mi |
| 04479 | Sangerville, ME | 9.4 mi |
| 04426 | Dover Foxcroft, ME | 12.7 mi |
| 04485 | Shirley Mills, ME | 13 mi |
| 04923 | Cambridge, ME | 14.4 mi |
| 04481 | Sebec, ME | 14.6 mi |
| 04930 | Dexter, ME | 15.5 mi |
| 04942 | Harmony, ME | 16.7 mi |
| 04939 | Garland, ME | 17.8 mi |
| 04415 | Brownville Junction, ME | 18.5 mi |
| 04414 | Brownville, ME | 19.2 mi |
Questions about 04443
What is the ZIP+4 code for 04443?
04443 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 04443, you need to look up a specific street address to get them.
What city is 04443?
04443 is assigned to Guilford, Maine, in Piscataquis 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.