ZIP Code 04428 — Eddington, ME
04428 is a standard (street delivery) ZIP code serving Eddington, Maine, in Penobscot 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 04428 at a glance
| ZIP code | 04428 |
|---|---|
| Primary city | Eddington |
| State | Maine (ME) |
| County | Penobscot FIPS 23019 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 3,334 |
| Coordinates | 44.806430, -68.555840 |
How ZIP+4 works in 04428
The four digits after the hyphen encode a delivery segment inside 04428. 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 04428 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 04428.
| ZIP | City | Distance |
|---|---|---|
| 04411 | Bradley, ME | 5.5 mi |
| 04429 | Holden, ME | 6.7 mi |
| 04469 | Orono, ME | 8.6 mi |
| 04412 | Brewer, ME | 8.9 mi |
| 04473 | Orono, ME | 9.7 mi |
| 04489 | Stillwater, ME | 9.8 mi |
| 04461 | Milford, ME | 12 mi |
| 04605 | Ellsworth, ME | 12.2 mi |
| 04474 | Orrington, ME | 12.6 mi |
| 04401 | Bangor, ME | 14.5 mi |
| 04416 | Bucksport, ME | 15.7 mi |
| 04472 | Orland, ME | 17.1 mi |
Questions about 04428
What is the ZIP+4 code for 04428?
04428 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 04428, you need to look up a specific street address to get them.
What city is 04428?
04428 is assigned to Eddington, Maine, in Penobscot 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.