ZIP Code 04473 — Orono, ME
04473 is a standard (street delivery) ZIP code serving Orono, 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 04473 at a glance
| ZIP code | 04473 |
|---|---|
| Primary city | Orono |
| State | Maine (ME) |
| County | Penobscot FIPS 23019 |
| ZIP type | Standard (street delivery) |
| Time zone | America/New_York |
| Population | 8,371 |
| Coordinates | 44.885940, -68.718880 |
How ZIP+4 works in 04473
The four digits after the hyphen encode a delivery segment inside 04473. 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 04473 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.
Other ZIP codes in Orono
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 04473.
| ZIP | City | Distance |
|---|---|---|
| 04489 | Stillwater, ME | 2.2 mi |
| 04469 | Orono, ME | 2.8 mi |
| 04401 | Bangor, ME | 6.8 mi |
| 04412 | Brewer, ME | 7.1 mi |
| 04411 | Bradley, ME | 7.4 mi |
| 04428 | Eddington, ME | 9.7 mi |
| 04468 | Old Town, ME | 9.7 mi |
| 04461 | Milford, ME | 9.7 mi |
| 04450 | Kenduskeag, ME | 10.4 mi |
| 04449 | Hudson, ME | 11.1 mi |
| 04474 | Orrington, ME | 12.2 mi |
| 04429 | Holden, ME | 12.5 mi |
Questions about 04473
What is the ZIP+4 code for 04473?
04473 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 04473, you need to look up a specific street address to get them.
What city is 04473?
04473 is assigned to Orono, 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.